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Why Mozilla ? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: addons.mozilla.org (AMO) is the foundation of the Firefox add-ons ecosystem. It’s a showcase for developers to publish and grow their extensions, and a place of discovery for millions of users who customize Firefox to make it their own. Behind the scenes are the DevHub which enables developers to manage their extensions. To manage the ecosystem there are a series of Reviewer tools and automated moderation systems. As a Senior Software Engineer, you’ll bring a passion for crafting resilient systems that accelerate our review and moderation teams to provide a first-class experience for Add-on developers. You’ll work closely with engineers, reviewers, developer support, and Add-ons leadership to turn ideas into polished features, modernize the platform and its architecture, and see your work reach millions of people around the world. What you’ll do: • Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub. • Help establish and maintain engineering standards across areas such as code review, definition of done, production readiness, runbooks, incident response, on-call practices, coding conventions, and infrastructure as code. • Create robust observability systems and data-backed insights. • Provide peer feedback, share knowledge and help others grow. • Build and improve the systems that enable Add-ons engineering to safely develop, deploy, observe, and operate production services. • Improve our CI/CD pipelines using declarative, pipeline-as-code approaches that make changes reproducible, testable, and easy to review. • Deliver work iteratively using a visible backlog, short feedback cycles, retrospectives, and demonstrations to stakeholders. • Write clear technical documentation, including design notes, Architecture Decision Records, runbooks, and incident write-ups. • Work effectively in unfamiliar codebases, tracing requests and asynchronous jobs end-to-end to understand failures and identify opportunities for improvement. • Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements. • Contribute in the open through pull requests, code reviews, and discussions. • Work on: • Feature development: submission flows, trust and safety signals, DevHub and Reviewer tools modernization. • AMO application systems: Work within our Python/Django, MySQL, React/TypeScript, and asynchronous processing systems. • Internal developer platforms : Create tools and paved paths that make it easier for teams to ship and operate software safely and consistently. • Team Process: Contribute to team ceremonies, execute process improvement, and provide feedback on team effectiveness. • Engineering standards : Help make production readiness, testing, recoverability, documentation, and safe deployment part of the normal development lifecycle. • Platform reliability: Deployments, monitoring, and incident response. What you’ll bring: • Strong hands-on experience building and maintaining production applications with Python/Django. • Experience operating and improving production software systems where reliability and safe delivery matter. • Strong experience with CI/CD systems and treating pipelines and infrastructure declaratively as code. • Experience designing or improving automated testing and deployment workflows, including integration testing and staged or progressive delivery. • Strong understanding of observability as an engineering discipline, including metrics, logging, tracing, service-level objectives, and actionable alerting. • Experience building or maintaining internal tools or platforms used by other engineering teams, with an understanding that internal systems have users, reliability expectations, roadmaps, and lifecycle considerations. • Experience defining or improving engineering practices such as code review standards, operational readiness, runbooks, incident …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Are you passionate about Privacy Protections and the Open Web? Do you want to ship software to a large user base? Do you want your contributions to have a positive impact on the world? Do you want to advance current browser architecture to make the web a safer place for users? Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and restricted. We are looking for a Senior Software Engineer to support the Privacy Team to advance the Firefox Web Platform. What you'll do: • Implement Privacy-improving, anti-tracking and threat intelligence protection into the Firefox web browser to mitigate user tracking and phishing. • Implement architectural improvements into Gecko, the browser engine underlying Firefox. • Build performant, low-latency, and maintainable C++, JavaScript and Rust code • Work as part of a geographically distributed team in an asynchronous manner (mostly Europe and US-East). What you'll bring: • Bachelor's degree in computer science, engineering, or a related program; or equivalent work experience. • At least 4 years of experience with programming in C++ and Rust, with a strong background in memory safety, multi-threaded system architecture, or raw data stream manipulation. • Proven ability to onboard quickly, deliver and improve complex software projects. • Proven track record of independently scoping and landing complex features within tight release windows. • Excellent written and verbal communication skills. You can validate your progress and decisions and communicate them clearly. Bonus Points: • You have already contributed to the Mozilla mission and the codebase. • Experience working within the browser space (Gecko, Chromium, WebKit) or web engine runtime abstractions. • Experience or high interest in designing or leveraging ML pipelines to automate internal developer workflows. • Deep understanding of web architecture, the privacy/security model of the web, and client-side data structures. • Knowledge of basic statistical modeling. • Proficiency with Python and SQL. What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox Enterprise is a new team within Mozilla addressing the needs of business and government customers for a secure enterprise browser that gives organizations greater control over their data, policies, and digital infrastructure. We are seeking a Strategic Partnerships Manager to help build and grow the Firefox Enterprise partner ecosystem France. You will build and develop strategic partnerships and alliances across the French technology, public-sector, cloud, open-source, and systems-integration ecosystem. This is a hands-on role for someone who is excited to build partnerships in a developing market and work across Mozilla and partner organizations to create lasting customer and business value. Depending on experience, this position may be hired as a Strategic Partnerships Manager or Senior Strategic Partnerships Manager. What you’ll do: • Build and manage relationships with selected technology, cloud, public-sector, integration, and service partners in France • Identify and qualify new partners based on customer access, technical capabilities, delivery capacity, and revenue potential • Map each partner’s objectives, decision-makers, capabilities, customers, and expected contribution • Create a joint plan for each strategic partner with agreed goals, responsibilities, milestones, and next steps • Turn partner discussions into defined use cases, customer opportunities, pilots, integrations, or joint offerings • Build business cases and commercial models covering pricing, partner incentives, revenue sharing, support, and delivery responsibilities • Negotiate partner agreements in coordination with Mozilla leadership, Legal, Finance, Product, and Engineering • Generate partner-led revenue through customer introductions, joint account planning, co-selling, and reseller activities • Plan joint marketing activities such as events, content, campaigns, customer stories, and market announcements • Track partner pipeline, commitments, risks, and results and report progress to Mozilla leadership What you’ll bring: • Experience in strategic partnerships, business development, alliances, channel management, or key account management within B2B technology • At least one example of a partnership you developed from initial contact to a signed agreement or active joint project • Experience negotiating commercial terms such as pricing, commissions, incentives, revenue sharing, or reseller conditions • Experience building business cases that quantify customer value, partner economics, costs, and revenue potential • Experience managing relationships with both senior decision-makers and operational teams • Enough technical understanding to discuss enterprise software, integrations, deployment models, and support responsibilities with specialists • Experience creating structure and measurable progress where the partner model or process was not yet fully defined • Native-level fluency in French and advanced written and verbal communication skills in English • Willingness to travel across France, occasionally work with U.S. time zones, and represent Mozilla’s open-source and privacy-focused mission What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. …

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role Firefox Enterprise is a new team within Mozilla addressing the needs of business and government customers for a secure enterprise browser that gives organizations greater control over their data, policies, and digital infrastructure. We are seeking a Strategic Partnerships Manager to help build and grow the Firefox Enterprise partner ecosystem across Germany, Austria, and Switzerland. You will build and develop strategic partnerships and alliances across the DACH technology, public-sector, cloud, open-source, and systems-integration ecosystem. This is a hands-on role for someone who is excited to build partnerships in a developing market and work across Mozilla and partner organizations to create lasting customer and business value. Depending on experience, this position may be hired as a Strategic Partnerships Manager or Senior Strategic Partnerships Manager. What you’ll do • Build and manage relationships with selected technology, cloud, public-sector, integration, and service partners across DACH • Identify and qualify new partners based on customer access, technical capabilities, delivery capacity, and revenue potential • Map each partner’s objectives, decision-makers, capabilities, customers, and expected contribution • Create a joint plan for each strategic partner with agreed goals, responsibilities, milestones, and next steps • Turn partner discussions into defined use cases, customer opportunities, pilots, integrations, or joint offerings • Build business cases and commercial models covering pricing, partner incentives, revenue sharing, support, and delivery responsibilities • Negotiate partner agreements in coordination with Mozilla leadership, Legal, Finance, Product, and Engineering • Generate partner-led revenue through customer introductions, joint account planning, co-selling, and reseller activities • Plan joint marketing activities such as events, content, campaigns, customer stories, and market announcements • Track partner pipeline, commitments, risks, and results and report progress to Mozilla leadership What you’ll bring • Experience in strategic partnerships, business development, alliances, channel management, or key account management within B2B technology • At least one example of a partnership you developed from initial contact to a signed agreement or active joint project • Experience negotiating commercial terms such as pricing, commissions, incentives, revenue sharing, or reseller conditions • Experience building business cases that quantify customer value, partner economics, costs, and revenue potential • Experience managing relationships with both senior decision-makers and operational teams • Enough technical understanding to discuss enterprise software, integrations, deployment models, and support responsibilities with specialists • Experience creating structure and measurable progress where the partner model or process was not yet fully defined • Native-level fluency in German and advanced written and verbal communication skills in English • Willingness to travel across DACH, occasionally work with U.S. time zones, and represent Mozilla’s open-source and privacy-focused mission What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, …

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla Mozilla Corporation is a non-profit-backed technology company that has helped shape the internet for the better over the past 25 years. We’re the makers of Firefox , the privacy-focused web browser used by more than 225 million people around the world each month. As we look to the future, we’re working to shape the next 25 years of the internet—one that’s built for people, not just for profit. Mozilla Corporation is wholly owned by the 501(c) non-profit Mozilla Foundation , meaning we’re accountable not to shareholders, but to our mission. Alongside thousands of contributors and collaborators around the world, Mozillians design, build, and maintain open-source software that empowers people to use the internet on their own terms. About this team and role Firefox Enterprise is seeking a Staff Product Manager to own a major part of our 2027 product roadmap as we grow from our first release into a multi-product enterprise offering. This is a high-impact role for someone who has taken enterprise security products from zero to one. You will set direction, align engineering, design and go-to-market partners, and deliver. This role is ideal for someone who can work across teams with empathy, build trust with a wide range of partners, and move work forward in a practical, low-ego way. You will join a small product team, and work closely with engineering, security, legal, sales and customers, including our first enterprise pilots. You do not need to know browsers inside out, but you do need to bring structure to ambiguity, make clear product decisions, and follow through. What You’ll Do • Own the strategy, roadmap and delivery of a major Firefox Enterprise workstream in 2027, starting with our hosted offering alongside the existing on-premise solution • Define requirements, success metrics and release plans, and work with engineering, design, security and infrastructure teams to ship them • Work with pilot customers and prospects, including IT, security and compliance teams, to understand their deployment needs and turn them into prioritized product decisions • Partner with sales, legal, finance and support on packaging, pricing inputs, go-to-market readiness and compliance • Contribute to a single cross-workstream roadmap, keeping dependencies, timelines and trade-offs visible to leadership and stakeholders • Take on new scope as the portfolio grows, including Thunderbird Enterprise and AI-related enterprise capabilities, and help mentor teammates and establish product practices • Champion Mozilla’s values in every interaction. What You’ll Bring • 5+ years of product management experience, including taking 0-to-1 enterprise security or infrastructure products (such as identity, endpoint or infrastructure security) from definition through launch • Experience owning a hosted or SaaS security product, including data residency and operational requirements • Experience dealing with public sector organizations, with a working understanding of sovereignty requirements • Strong communication skills and the ability to translate nuanced topics to different audiences • A strong track record of execution and follow-through; you are someone who helps teams turn ideas into action • Comfort with ambiguity, and experience setting direction for new products or markets • Experience working with engineering, design, security, legal and go-to-market teams to deliver cross-functional programs with strong outcomes • Experience working directly with enterprise customers, such as IT and security teams, and turning their needs into prioritized product decisions • Strong written and verbal communication skills in English • You are motivated by privacy, open source, and building technology that serves the public interest and Mozilla’s mission Nice to Have • Experience working on enterprise browsers, or on adjacent products such as endpoint detection (EDR), identity (IdP, SSO) or device management (MDM) • Compliance experience, such as working with legal on data processing agreements and an understanding of NIS2, DORA and GDPR, with the ability to account for Mozilla’s own compliance constraints while enabling the product to unlock compliance value for customers • Exposure to AI features in enterprise products, including data loss prevention • Experience supporting new market entry or new product releases • Experience working with government entities or in government facing businesses • French or German language proficiency What You’ll Get • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness …

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 70+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about Thunderbird and Mozilla: Thunderbird Technologies Corporation is the nonprofit-owned company behind Thunderbird email and a growing portfolio of products. While part of the Mozilla family, Thunderbird is a separate entity from Mozilla Corporation and Mozilla Foundation with its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity We are looking for a Senior Manager, Accounting & Finance to serve as Thunderbird’s most senior finance professional. The right person will bring a strong accounting or controllership foundation and the breadth to lead financial planning and analysis, finance operations, and organization-level decision support. As Thunderbird grows across donations, subscription services, enterprise offerings, and international operations, our financial needs are becoming more complex. We need stronger integration across accounting and FP&A, experienced oversight of emerging revenue models and tax obligations, and clear financial analysis that helps leadership understand performance, risks, tradeoffs, and decisions. Reporting to the Chief Operating Officer, the Head of Finance will directly manage our Senior Staff Accountant and Senior FP&A Analyst. This is a hands-on functional leadership role for someone who can provide experienced financial judgment, develop an established team, and remain close to the details while helping build the systems, controls, reporting, and finance practices the organization needs for its next stage of growth. This role requires regular working-hour overlap with the COO, finance team, and other colleagues across North American time zones. Candidates based in Eastern or Central time zones are preferred; candidates elsewhere in the United States should be comfortable maintaining substantial overlap with those working hours. Flexibility for meetings with colleagues, advisers, and affiliated organizations in Europe is also expected. What you’ll do • Lead Thunderbird’s finance function, with overall responsibility for accounting, financial planning and analysis, tax, treasury, and finance operations . • Manage and develop Thunderbird’s finance team , establishing clear priorities, responsibilities, review practices, and accountability . • Oversee monthly and annual close, financial reporting, reconciliations, accounting policies, and internal controls. • Oversee accounting and revenue recognition across donations, subscriptions, enterprise arrangements, partnerships, and other revenue streams. • Lead annual budgeting, forecasting, longer-range financial planning, and scenario analysis. • Develop clear management reporting and visualizations that highlight important trends, risks, tradeoffs, and decisions. • Oversee tax, audit, indirect tax, VAT/GST, corporate filings , and related work with external advisers. • Evaluate the financial, tax, accounting, and operational implications of entering new jurisdictions or establishing additional entities . • Work with Enterprise Partnerships and Legal to establish financial reporting, reconciliation, and control processes for partner-led commercial arrangements . • Oversee financial reporting to Thunderbird’s parent organization and affiliated Mozilla organizations. • Own financial oversight of payroll across multiple providers in partnership with the People team. • Document and strengthen finance systems and workflows, including accounting, expense management, payment-platform reconciliation, documentation, and automation. • Oversee cash-flow planning, treasury, banking, and investment activities, working closely with the Senior FP&A Analyst. • Serve as a trusted finance adviser to organizational leaders, translating complex financial information into clear recommendations . What you bring • 15+ years of relevant …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About the team and role: Mozilla’s mission is to champion the internet as a global public resource, measured through a double bottom line : advancing that mission while succeeding in the market. At the Mozilla Corporation, we live our mission thesis through building our and scaling trusted, user-first products , with a focus on the Firefox browser. The global public policy team enables this by shaping laws and regulatory frameworks that support our open source technologies, strengthen user choice and privacy, and ensure fair competition to create the conditions for responsible innovation and long-term growth. Do you like working on big-picture problems? Join us to influence the future of tech policy! Mozilla is looking for an experienced Policy Communications Europe Lead to help set the public narrative on the role our browser, Firefox, and browser engine, Gecko, play in order to keep the web open. We build products in the public interest to support the Mozilla project. The work will cover privacy, AI, open source, competition, and internet policy—translating the positions Mozilla’s policy team develops into stories that get ahead of the debate, not just respond to it. In this pivotal role, you’ll drive Mozilla’s proactive policy media voice across regions and audiences, build narratives, craft media relationships, and build credibility amongst key stakeholders. You’ll translate complex, high-stakes policy issues into stories that connect, inspire, and drive impact. You’ll help Mozilla—and the people and partners who believe in an open internet—cut through noise, frame critical debates, and spotlight what’s at stake for users everywhere. What you'll do: As Policy Communications Lead for Europe, you will: • Sit in the Policy & Comms organisation, reporting to the Europe Policy Lead. • Focus on Europe as your key region, but be able and ready to apply your skills to emerging key markets for Firefox on other continents. • Be a central operator, translating policy strategy into public narrative that advances the products we build and the changes they are advocating for on the web. • Own and drive Mozilla’s proactive media narrative on privacy, security, AI, open-source, competition, and emerging regulatory issues—translating policy positions into stories that get ahead of the debate rather than following it. • Place and amplify a steady cadence of thought leadership pieces such that put Mozilla’s policy positions in front of the right audiences. • Serve as a strategic partner and trusted advisor to communications colleagues and senior Mozilla leaders, supporting proactive and reactive policy comms across the organisation. • Work cross-functionally with marketing, legal, product and engineering teams to shape narratives that advance Mozilla’s mission and differentiate our voice from “Big Tech.” • Build and nurture relationships with key journalists, policymakers, industry, thought leaders, advocacy organizations, and influencers in technology, digital rights, and policy spheres. • Craft and edit a wide range of materials—press releases, blog posts, policy statements, op-eds, speeches, regulatory submissions, and executive briefing documents. • Prepare Mozilla spokespeople for high-stakes media, public, and policy engagements, including message development, media training, and issue briefing. • Track and respond to fast-moving external developments, helping Mozilla seize moments to lead important conversations and manage risks. • Help shape Mozilla’s public policy positioning on critical product initiatives, supporting launches, campaigns, and issue-based advocacy. • Work closely with the wider communications team and external agency partners to ensure clarity, alignment, and operational rigor across channels. • Serve as a point of escalation and counsel in high-risk, complex, or crisis policy scenarios. What You’ll Bring: • 5-10 years of experience in policy communications, media relations, or related roles, ideally in technology, …

Mozilla Foundation is a non-profit building a better technology future — powered by people, open by design, fueled by imagination. We deliver people-first alternatives to today’s extractive systems. We build side by side with developers, innovators and advocates, united in the belief that a better technology future is not only possible — it’s ours to create! Team Major Gifts are becoming a load-bearing part of how Mozilla Foundation funds its mission — and that revenue doesn't materialize on its own. Someone has to build real relationships with donors capable of giving at the $50,000 to $1M+ level, and turn those relationships into closed gifts rather than a portfolio that's always “warming up.” That's this role. As Major Gifts Officer, you'll sit within Mozilla Foundation's Development team and work closely with the VP of Development, program staff, and Mozilla's executive leadership to identify, cultivate, solicit, and steward a portfolio of major donors. You'll be the person personally accountable for moving a donor from interest to a signed commitment — translating Mozilla's work on digital rights, internet health, and technology policy into the kind of tailored, compelling case that moves people to give, and to keep giving. Job responsibilities Here’s what you’ll likely be focused on for the first 6 months: • Get up to speed on Mozilla's existing major gift portfolio and pipeline in Salesforce, and start building relationships with current donors. • Move existing prospects who are already in active cultivation toward a solicitation. • Partner with prospect research to identify and begin qualifying new major gift prospects for your portfolio. • Help plan and deliver a stewardship touchpoint or donor event that deepens an existing major donor relationship. • Start shaping a tailored proposal or impact story, drawing on input from program and executive staff, for one of your priority donors. As a Major Gifts Officer at Mozilla Foundation, you will… • Personally solicit and close five-, six-, and seven-figure gifts from donors capable of giving at the $50,000–$1M+ level. • Move donors from interest to a signed commitment on a timeline that actually progresses, rather than leaving a portfolio perpetually “warming up.” • Help the major gifts program consistently hit its revenue targets. • Manage a portfolio of major donor relationships, systematically advancing prospects through cultivation, solicitation, and stewardship. • Keep every meaningful donor interaction documented in Salesforce, so relationship history is accurate and the next move is always clear. • Design and deliver stewardship activities and donor events that keep major donors genuinely engaged after their gift. • Build a growing base of donors who renew and increase their support over time, rather than one-time gifts that don't come back. • Partner with prospect research to continuously identify and qualify new major gift prospects for your portfolio. • Help build and strengthen the pathways that convert annual donors into major giving. • Keep the pipeline growing faster than it depletes, so future revenue isn't riding entirely on today's named relationships. • Translate Mozilla's programs and technical work into compelling, tailored proposals and impact stories that move donors to give. • Bring executive leadership, program staff, and a donor's own interests together into a single, compelling case for support. • Deploy senior leaders towards the right donor relationships at the right moments. Your Professional Profile: • A track record in major gift fundraising, preferably in technology, advocacy, or public interest organizations. • Demonstrated success personally soliciting and closing five-, six- and/or seven-figure gifts directly with high-net-worth individuals — not just managing or growing a portfolio someone else built. • The ability to conceive, plan, and execute a major gifts program, and to build, prioritize, and systematically manage a portfolio of donor relationships from identification through stewardship. • Exceptional interpersonal and relationship-building skills, with the credibility to earn trust from donors and colleagues in a values-driven organization. • The ability to translate complex technical concepts into compelling philanthropic opportunities, with strong proposal writing and presentation skills. • Command of donor cultivation strategy and moves management. • Comfort with CRM systems and disciplined donor database management. • The focus to manage a full portfolio without losing sight of what matters most, and the initiative to move toward hard conversations — including the ask — rather than waiting for someone else to go first. We Are Excited To See Any Additional Experience With: • An understanding of digital rights, internet health, or technology policy. • Donor-Advised Fund (DAF) fluency — comfort identifying and discussing DAF giving opportunities within a portfolio. • …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. What you’ll do: • Design, build and implement security and hardening features for enterprise users: Design, implement, test, and ship cutting-edge security features that strengthen Firefox’s security posture. • Advance Firefox’s security architecture across multiple operating systems: Contribute to and drive cutting-edge improvements to Firefox’s core security posture, by building privilege isolation and moving trust boundaries or Strengthen Firefox’s security architecture: Improve Firefox’s core security mechanisms including cryptographic protocols, WebPKI, and security-sensitive web APIs. • Contribute to our security initiatives: Work across teams to investigate security issues, identify root causes, and deliver robust, maintainable fixes. • Improve browser reliability and performance: Diagnose and resolve issues affecting stability, correctness, performance, and memory usage in a complex, multithreaded environment. What you’ll bring: • Systems programming experience and security knowledge: 3+ years of experience in low-level software engineering, strong proficiency in C and/or C++, and a solid understanding of security fundamentals. • Debugging and problem-solving skills: Experience diagnosing and resolving issues in multithreaded, cross-platform native applications, including memory and performance challenges. • Web platform and modern systems experience: Familiarity with web technologies (HTML, CSS, JavaScript) and interest or experience in Rust; ability to work effectively within large, complex, multi-language codebases. • Effective collaboration and communication: Experience working with distributed teams and communicating technical ideas clearly in writing and conversation. What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Mozilla is looking for an Incident Responder to monitor and mitigate attacks across Mozilla’s products and services. In this position, you will be a part of a flexible team responsible for handling security incidents. As such, you’ll need to have years of practical security experience and knowledge of the state of the art for detecting and responding to attacks. You’ll be someone Mozillians across the company depend on and trust to respond quickly and effectively in a crunch, with the outstanding communication and collaboration skills needed to work in partnership with diverse stakeholders. Most importantly, you will become a critical member of the team responsible for ensuring the integrity of Mozilla’s products and for keeping Mozilla’s users safe, within a company dedicated to building a more secure internet. What you'll do: • Identify and respond to security incidents on a global scale. • Act as an incident commander to drive incidents through the entire response lifecycle. • Design and maintain a portfolio of security alerts, automated actions, playbooks and escalation workflows in support of a high-performing 24/7 incident response capability. • Conduct threat hunting activities, anticipate future threats, and maintain forward-thinking strategies for tools/technology/processes that combat sophisticated threat actors. • Research threat intelligence reports, triage and manage resulting workflows. • Partner with key stakeholders and communicate effectively to maintain a continuously improving feedback loop of preparation, identification, analysis, containment, and post mortem activities. • Participate in on-call rotation. What you'll bring: • 5+ years of demonstrated ability managing security incidents at a global scale and/or experience working in Security Operations Centers (SOC), Product Security Incident Response Teams (PSIRT), and Computer Security Incident Response Teams (CSIRT). • Expertise with security information and event management (SIEM) systems (eg. ELK, Google BigQuery, Splunk, etc.). Splunk proficiency is preferred. • Expertise with endpoint detection and investigation. Hands-on experience with leading EDR tools and demonstrated ability to leverage endpoint telemetry to find root cause. • Expertise with security orchestration and automation (SOAR) platforms such as Tines or Splunk SOAR. • Superb communication and leadership capacity; ability to partner effectively with diverse company stakeholders. • Real-world experience in software development and/or engineering operations for consumer products and services; B.S. in a technology-focused field is helpful. • Practical experience working with cloud technologies (eg. Google Cloud Platform, Amazon Web Services, Heroku, Microsoft Azure, etc.). Competencies: • Ownership and Accountability • Autonomy • High Level of Integrity • Clear Communication • Creative Problem Solver • Passionate about Security What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the …

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox Enterprise is a new team within Mozilla that is addressing the needs of business and government customers for a secure enterprise browser that gives organizations greater control over their data, policies, and digital infrastructure. We’re now seeking a Strategic Account Manager, Firefox Enterprise to help grow Firefox Enterprise in France . This is a high-impact enterprise sales role for someone who is excited to build deep relationships with customers and help them achieve success using Firefox Enterprise. What you’ll do: • Serve as the primary point of contact for assigned customer accounts • Build and maintain strong, long-term client relationships • Understand our customer goals, challenges, and business needs • Drive Firefox Enterprise adoption, engagement, and overall satisfaction across the account • Manage renewals and proactively address retention risks • Coordinate with internal teams (Sales, Support, Product, Solution Engineering) to deliver a seamless customer experience • Identify and pursue expansion opportunities within existing accounts, including additional seats, upgraded tiers, or new use cases • Track account health, usage, and performance metrics, including forecast reports on retention, renewal and expansion • Conduct regular check-ins, business reviews, and success planning with customers • Resolve issues and escalate when necessary to ensure timely resolution What you’ll bring: • Significant experience in enterprise SaaS, infrastructure, security, or platform account management, sales, customer support or other customer facing roles • Strong relationship-building skills with the ability to establish trust and credibility at all levels of a customer organization • Proven track record of supporting customer renewals, retention, and revenue growth • Strong written and verbal communication skills in English and French. • Must be willing and able to travel within France as needed for the role, with a preference for candidates located in the Paris metro area • Must be willing and able to occasionally accommodate collaboration and meetings aligned with U.S. business hours • Negotiation and influence skills to support renewals, expansions, and customer advocacy • Commitment to our values: • Welcoming differences • Being relationship-minded • Practicing responsible participation • Having grit What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will …

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox Enterprise is a new team within Mozilla that is addressing the needs of business and government customers for a secure enterprise browser that gives organizations greater control over their data, policies, and digital infrastructure. We’re now seeking a Strategic Account Manager, Firefox Enterprise to help grow Firefox Enterprise across Germany, Austria, and Switzerland. This is a high-impact post-sales strategic account and customer success role for someone who is excited to build deep relationships with customers and help them achieve success using Firefox Enterprise. What you’ll do: • Serve as the primary point of contact for assigned customer accounts • Build and maintain strong, long-term client relationships with executive, commercial, technical, procurement, and partner stakeholders • Develop success plans and guide customers from pilot through deployment, adoption, and broader rollout • Monitor account health, lead business reviews, identify risks, and coordinate mitigation plans • Own renewal planning, develop expansion opportunities, and maintain accurate retention and revenue forecasts • Identify, qualify, develop, and close new Firefox Support opportunities when customer responsibilities allow • Recognize broader Firefox Enterprise opportunities and coordinate them with the responsible Account Executive • Conduct regular check-ins, business reviews, and success planning with customers • Resolve issues and escalate when necessary to ensure timely resolution What you’ll bring: Required qualifications • Experience owning strategic customer relationships in enterprise technology, including engagement with both senior and operational stakeholders • A track record of supporting commercial outcomes through renewals, expansion, consultative sales, or a combination of these • Strong relationship-building and communication skills, with the ability to establish trust across different levels of a customer organization • Experience coordinating cross-functional teams to address customer requirements, risks, and escalations • Sufficient technical curiosity and learning ability to engage credibly with enterprise architects, security teams, IT operations, and product specialists • Native-level fluency in German and advanced written and verbal communication skills in English • Willingness and ability to travel across Germany, Austria, and Switzerland as required • Willingness and ability to occasionally accommodate collaboration and meetings aligned with U.S. business hours • Commitment to our values: • Welcoming differences • Being relationship-minded • Practicing responsible participation • Having grit Preferred qualifications • Experience with enterprise infrastructure, security, platform, or on-premises software • Experience working with public-sector, regulated, or similarly complex organizations • Experience selling enterprise support, subscriptions, or professional services • Familiarity with open-source software and enterprise open-source business models • Familiarity with browser management, endpoint policies, identity and access management, SIEM, or related enterprise technologies What you’ll get: • Generous performance-based bonus plans to all eligible employees - we share in our success as one team • Rich medical, dental, and vision coverage • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) • Quarterly all-company wellness days where everyone takes a pause together • Country specific holidays plus a day off for your birthday • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits (life/AD&D, disability, EAP, …