For Employers

Mozilla

5001-10000 employees

About Mozilla

Mozilla provides internet solutions. It offers Firefox, a web browser; Thunderbird 2, an email application; Raindrop, a prototype messaging tool that enables its users to manage a stream of messages coming from sources such as Twitter and Facebook; and Rainbow, a developer prototype that brings video and audio recording to Firefox 4.

The company also provides Bugzilla, a bug tracking system that helps its users manage software development; Camino, a web browser; SeaMonkey, an application containing a web browser, HTML editor, and web development tools as well as solutions for mobile phones; and Firefox 24, a mobile browser that enables Android users to conduct web-based video chats without a plugin.

Headquarters: Mountain View, California, United States

Industry: Browser Extensions, Web Browsers

Company Values

Our culture ensures our future

Our September 2020 employee survey confirms respect for one another and an emphasis on learning and innovation are what will ensure our future.

Because sometimes we zoom

Since March of 2020, like so many of our peers, we closed our offices and asked just over ½ of our employees, for their safety, to head home to work (the other ½ was already there). And we are all doing the best we can.

Diversity and Inclusion at Mozilla

We’ve made some progress that we’re proud of, and we have a lot more work to do.

Your career growth is part of our mission

Serving 300+ million people means our small team has a mighty mandate. Add a culture of exploration and mentorship, and there is always a new way to learn and grow here.

Truly “mission-driven”

Being wholly-owned by the non-profit Mozilla Foundation means we can focus on the real needs of people, rather than a bottom line.

The web the way it should be

Join a global community of employees, collaborators, activists, and advocates fighting to keep the internet healthy for generations.

Beyond the browser

While our Firefox family of products works to keep everyone safer and smarter online, our Mozilla initiatives focus on shaping the future of the internet.

Remote Job Openings at Mozilla (92)

Senior Mobile Engineer, iOS

Canada, United States $123K - $144K per year 5-10 yrs exp Software Development

You will design, develop, and evolve the Thunderbird iOS application while establishing a strong technical foundation for the product. This involves collaborating with cross-functional teams and open-source contributors to ensure high standards of performance, reliability, and accessibility.

Staff Product Engineer, Enterprise AI

Canada 155K - 185K per year 10+ yrs exp Software Development

You will build and ship full-stack features and customer-specific customizations within the Thunderbolt codebase while working directly with enterprise partners. Additionally, you will diagnose complex technical issues and provide deployment guidance to ensure successful customer implementations.

Staff Product Engineer, Enterprise AI

United States $185K - $220K per year 10+ yrs exp Software Development

Build and ship full-stack features, integrations, and customer-specific customizations within the Thunderbolt codebase. Work directly with technical partners and enterprise customers to translate their requirements into technical plans and stable software deployments.

Senior Payroll Analyst, North America

United States 5-10 yrs exp Finance

The Senior Payroll Analyst is responsible for managing end-to-end semi-monthly payroll operations for approximately 800 North American employees. This role ensures compliance with federal, state, provincial, and local tax regulations while driving process improvements and cross-functional initiatives.

Senior Payroll Analyst, North America

United States $95000 - $151K per year 5-10 yrs exp Finance

The Senior Payroll Analyst manages end-to-end payroll processing for approximately 800 North American employees while ensuring compliance with federal, state, and local tax regulations. This role also involves collaborating with internal teams for issue resolution, process standardization, and supporting year-end audit activities.

Senior Financial Analyst

United States $87000 - $136K per year 5-10 yrs exp Finance

The Senior Financial Analyst will manage recurring planning, reporting, and analysis for the Core Services portfolio, including forecasting and budget updates. This role involves partnering with functional leaders to reconcile actuals, track headcount and vendor spend, and improve financial processes through automation.

Senior Product Manager, Mobile

United Kingdom £66000 - £87000 per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox on mobile platforms, focusing on user activation, retention, and feature delivery. They will collaborate with cross-functional teams to analyze user insights and translate them into actionable product improvements.

Senior Product Manager, Mobile

France €53000 - €71000 per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox for mobile, focusing on improving user activation, retention, and overall browser performance. They will collaborate with cross-functional teams to deliver high-impact features while analyzing user insights and market trends to drive growth.

Senior Product Manager, Mobile

Spain €58000 - €77000 per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox for mobile, focusing on improving user activation, retention, and overall browser performance. They will collaborate with cross-functional teams to deliver high-impact features while analyzing user insights and app store data to drive product growth.

Senior Product Manager, Mobile

Germany €68000 - €91000 per year 5-10 yrs exp Product

The Senior Product Manager will lead the development of Firefox for mobile, focusing on improving user activation, retention, and overall browser performance. They will collaborate with cross-functional teams to deliver high-impact features while analyzing user insights and app store metrics to drive growth.

Senior Product Manager, Mobile

Sweden 512K - 863K per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox for mobile, focusing on improving user activation, retention, and overall browser performance. They will collaborate with cross-functional teams to deliver high-impact features while analyzing user data and market trends to drive product growth.

Senior Product Manager, Mobile

Belgium €56000 - €74000 per year 5-10 yrs exp Product

You will lead the product strategy for Firefox on mobile, focusing on improving user activation, retention, and overall browser performance. You will collaborate with engineering, design, and data teams to ship high-impact features while optimizing the user journey across global markets.

Senior Product Manager, Mobile

Finland €45000 - €60000 per year 5-10 yrs exp Product

Lead the product strategy and development for Firefox on mobile platforms, focusing on improving user activation, retention, and overall app performance. Collaborate with engineering, design, and data science teams to deliver high-impact features while balancing technical constraints and privacy goals.

Senior Product Manager, Mobile

Netherlands €66000 - €88000 per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox for mobile, focusing on improving user activation, retention, and overall browser performance. They will collaborate with cross-functional teams to deliver high-impact features while balancing technical constraints and user privacy needs.

Senior Product Manager, Mobile

Canada 95000 - 139K per year 5-10 yrs exp Product

The Senior Product Manager will lead the development and optimization of Firefox on mobile platforms, focusing on user activation, retention, and feature delivery. They will collaborate with cross-functional teams to translate user insights into actionable product improvements and growth strategies.

Staff Solutions Engineer

Germany €81000 - €108K per year 5-10 yrs exp Software Development

The Staff Solutions Engineer will lead technical discovery, solution design, and deployment support for Firefox Enterprise across the DACH region. They will partner with sales teams to manage customer relationships and ensure successful integration of browser security and policy management within complex enterprise environments.

Senior Security Engineer - SecOps

Finland €45000 - €60000 per year 5-10 yrs exp Software Development

The Senior Security Engineer will identify and mitigate security incidents on a global scale while acting as an incident commander. They are responsible for designing security alerts, maintaining playbooks, and conducting threat hunting activities to protect Mozilla's products and users.

Senior Security Engineer - SecOps

Belgium €56000 - €74000 per year 5-10 yrs exp Software Development

The Senior Security Engineer will monitor and mitigate security incidents on a global scale while acting as an incident commander to drive response lifecycles. They will also design security alerts, maintain playbooks, and conduct threat hunting activities to protect Mozilla's products and users.

Senior Security Engineer - SecOps

United Kingdom £66000 - £87000 per year 5-10 yrs exp Software Development

The Senior Security Engineer will identify and respond to global security incidents while acting as an incident commander to drive response lifecycles. They will also design security alerts, maintain playbooks, and conduct threat hunting activities to proactively mitigate sophisticated threats.

Senior Security Engineer - SecOps

Germany 5-10 yrs exp Software Development

The Senior Security Engineer will act as an incident commander to identify, analyze, and mitigate security incidents on a global scale. They will also design and maintain security alerts, automated playbooks, and threat hunting strategies to protect Mozilla's products and services.

Senior Security Engineer - SecOps

Germany €68000 - €91000 per year 5-10 yrs exp Software Development

The Senior Security Engineer will identify and respond to security incidents on a global scale while acting as an incident commander. They will also design and maintain security alerts, playbooks, and automated workflows to ensure a robust 24/7 incident response capability.

Senior Security Engineer - SecOps

Spain €58000 - €77000 per year 5-10 yrs exp Software Development

You will identify and respond to security incidents on a global scale while acting as an incident commander to drive the response lifecycle. Additionally, you will design security alerts, maintain playbooks, and conduct threat hunting activities to protect Mozilla's products and users.

Senior Security Engineer - SecOps

Sweden 512K - 683K per year 5-10 yrs exp Software Development

The Senior Security Engineer will identify and respond to security incidents on a global scale while acting as an incident commander. They are responsible for designing security alerts, maintaining playbooks, and conducting threat hunting activities to protect Mozilla's products and users.

Senior Security Engineer - SecOps

Netherlands €66000 - €88000 per year 5-10 yrs exp Software Development

The Senior Security Engineer will identify and mitigate security incidents on a global scale while acting as an incident commander. They will also design security alerts, maintain automated playbooks, and conduct proactive threat hunting to protect Mozilla's products.

Staff Software Engineer, Web Application Services

Canada 155K - 190K per year 10+ yrs exp Software Development

You will lead the technical architecture and development of new web-based services while mentoring other engineers to ensure scalable and sustainable software patterns. You will also collaborate with cross-functional teams and the open-source community to solve complex problems and drive product growth.

Staff Software Engineer, Web Application Services

United States $180K - $215K per year 10+ yrs exp Software Development

Lead the technical architecture and development of web-based services to extend Thunderbird's product offerings. Collaborate with cross-functional teams and the open-source community to build scalable, privacy-respecting solutions.

Staff Software Engineer, Web Application Services

Canada, United States $180K - $215K per year 10+ yrs exp Software Development

Lead the technical architecture and development of web-based services to extend Thunderbird's product offerings beyond email. Collaborate with cross-functional teams and the open-source community to build scalable, privacy-respecting solutions while mentoring other engineers.

Staff Application Engineer, Salesforce

United States 5-10 yrs exp Software Development

The Staff Application Engineer will architect and build the Salesforce platform to support enterprise product lines, including lead-to-cash processes and AI-assisted workflows. They will own the technical health of the platform, establish governance practices, and partner with cross-functional teams to drive operational improvements.

Staff Application Engineer, Salesforce

United States $116K - $183K per year 10+ yrs exp Software Development

The Staff Application Engineer will architect and build the Salesforce platform to support enterprise product lines, including lead-to-cash processes and AI-assisted workflows. They will own the technical health of the platform, establish governance practices, and lead integrations with systems like NetSuite and BigQuery.

Senior Strategic Account Executive, Firefox Enterprise (DACH)

Germany €88000 - €118K per year 5-10 yrs exp Sales

You will build and manage a sales pipeline across the DACH region, personally owning the full sales cycle from initial contact to contract signature. You will collaborate with internal teams to develop value cases and drive commercial momentum within large enterprises and public-sector accounts.

Senior Software Engineer

United States 2-5 yrs exp Software Development

You will lead backend development and own the end-to-end lifecycle of services, including deployment, operation, and maintenance in production. You will also collaborate with cross-functional teams to ensure system reliability, security, and performance while participating in an on-call rotation.

Senior Software Engineer

Canada 95000 - 139K per year 5-10 yrs exp Software Development

You will lead backend development and own the end-to-end lifecycle of services, including deployment, operation, and maintenance in production. You will also collaborate with cross-functional teams to build resilient systems and participate in an on-call rotation to ensure service reliability.

Senior Software Engineer

United States $116K - $183K per year 2-5 yrs exp Software Development

You will lead backend development and own the end-to-end lifecycle of services, including deployment, operation, and maintenance in production. You will also collaborate with cross-functional teams to build resilient systems and participate in an on-call rotation to ensure service reliability.

Strategic Account Manager, Firefox Enterprise (DACH)

Germany €68000 - €91000 per year 5-10 yrs exp Sales

The Strategic Account Manager will serve as the primary point of contact for enterprise customers, guiding them from pilot through deployment and adoption. They are responsible for maintaining account health, driving renewals, and identifying expansion opportunities within the German, Austrian, and Swiss markets.

Strategic Account Manager, Firefox Enterprise

France €53000 - €71000 per year 5-10 yrs exp Sales

The Strategic Account Manager will serve as the primary point of contact for enterprise customers in France, driving adoption, engagement, and retention of Firefox Enterprise. They will coordinate with internal teams to deliver a seamless customer experience while identifying expansion opportunities and managing renewals.

Senior Strategic Account Executive, Firefox Enterprise (DACH)

Germany 5-10 yrs exp Sales

The Senior Strategic Account Executive will build and manage a sales pipeline across the DACH region to drive commercial growth for Firefox Enterprise. They will own the full sales cycle, from initial contact and qualification to contract negotiation and closing with large enterprise and public-sector clients.

Strategic Account Manager, Firefox Enterprise (DACH)

Germany 5-10 yrs exp Sales

Own strategic customer relationships across Germany, Austria, and Switzerland, guiding customers from pilot through deployment, adoption, and broader rollout. Monitor account health, lead reviews and renewal planning, identify expansion and support opportunities, forecast revenue, and coordinate teams to resolve customer issues.

Staff Solutions Engineer

Germany 5-10 yrs exp Software Development

Partner with Sales to guide enterprise customers across Germany, Austria, and Switzerland through technical discovery, solution design, evaluations, pilots, and Firefox Enterprise deployments. Advise on security, architecture, integrations, interoperability, and rollout risks, while creating reusable technical resources and enabling partners.

Senior Software Engineer, Add-Ons

Canada 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines and developer tools. Additionally, you will ensure platform reliability through monitoring, incident response, and the implementation of robust observability systems.

Front End Engineering Manager, Firefox Desktop

United States 5-10 yrs exp Others

The Engineering Manager will lead a geographically distributed team to drive improvements to the Firefox Desktop user interface. They are responsible for delivering high-quality software, managing project timelines, and fostering the professional development of team members.

Staff Technical Support Manager, Enterprise

United States 5-10 yrs exp Support

You will build and launch Mozilla's first B2B support operations capability, including the operating model, vendor strategy, and governance. You will also serve as the operational bridge between enterprise customers, product, and engineering teams to ensure high-quality service delivery.

Staff Technical Support Manager, Enterprise

Germany €57000 - €76000 per year 5-10 yrs exp Support

You will build and lead Mozilla's first B2B support operations, designing the operating model, vendor strategy, and governance frameworks. Additionally, you will manage vendor relationships, oversee incident responses, and act as the operational bridge between enterprise customers and internal engineering teams.

Senior Software Engineer, Cloud Engineering

Canada 95000 - 139K per year 5-10 yrs exp Software Development

You will build and maintain internal developer infrastructure, focusing on CI/CD, observability, and Kubernetes optimization. Additionally, you will guide technical decision-making and promote engineering standards to improve developer productivity.

Senior Software Engineer, Add-Ons

Canada 94000 - 139K per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including moderation pipelines and developer tools. You will also establish engineering standards for production readiness, observability, and CI/CD to ensure reliable and scalable platform operations.

Senior Software Engineer, Add-Ons

France €53000 - €71000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including moderation pipelines and developer tools. Additionally, you will establish engineering standards and build robust observability systems to ensure platform reliability.

Senior Software Engineer, Add-Ons

Germany €68000 - €91000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack while establishing engineering standards for production readiness and reliability. You will also collaborate with cross-functional teams to modernize platform tools and ensure the safety and performance of production services.

Senior Software Engineer, Add-Ons

Finland €45000 - €60000 per year 5-10 yrs exp Software Development

You will deliver major architectural improvements and features across the Add-ons stack, including moderation pipelines and developer tools. Additionally, you will establish engineering standards for production readiness, observability, and CI/CD to ensure safe and reliable software delivery.

Senior Software Engineer, Add-Ons

Belgium €56000 - €74000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including moderation pipelines and developer tools. You will also establish engineering standards for production readiness, observability, and CI/CD to ensure safe and reliable software delivery.

Senior Software Engineer, Add-Ons

United Kingdom £66000 - £87000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines and developer tools. You will also establish engineering standards for production readiness, observability, and incident response to ensure a high-quality experience for developers.

Senior Software Engineer, Add-Ons

Spain €58000 - €77000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including moderation pipelines and developer tools. You will also establish engineering standards and improve CI/CD pipelines to ensure safe, reliable, and scalable production deployments.

Senior Software Engineer, Add-Ons

Netherlands €66000 - €88000 per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including moderation pipelines and developer tools. Additionally, you will establish engineering standards for production readiness, observability, and CI/CD practices.

Senior Software Engineer, Add-Ons

Sweden 512K - 683K per year 5-10 yrs exp Software Development

You will deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines and developer tools. Additionally, you will establish engineering standards for production readiness, observability, and CI/CD to ensure safe and reliable software delivery.

Staff Operations Engineer

Canada 116K - 171K per year 5-10 yrs exp Software Development

The Staff Operations Engineer will lead the design, reliability, and evolution of hybrid-cloud and workplace infrastructure while driving complex, high-impact technical initiatives. This role involves cross-team collaboration to unify solutions, improve system reliability, and mentor engineers to raise technical standards.

Staff Data Scientist, Ads

United States $139K - $218K per year 5-10 yrs exp Software Development

The Staff Data Scientist will partner with cross-functional teams to identify high-impact opportunities and own complex analytical problems from framing to recommendation. They will develop measurement frameworks for advertising products and translate complex data findings into clear business strategies for senior leadership.

Staff Data Scientist, Ads

United States 10+ yrs exp Software Development

The Staff Data Scientist will partner with cross-functional teams to identify high-impact opportunities and develop measurement frameworks for advertising products. They will own complex analytical problems end-to-end, translating findings into clear recommendations for senior leadership.

Senior Software Engineer, Cloud Engineering

Canada 5-10 yrs exp Software Development

The Senior Software Engineer will build and maintain internal developer infrastructure, focusing on CI/CD, observability, and Kubernetes optimization. They will also guide technical decision-making and design agentic workflows to improve developer productivity.

Major Gifts Officer

Canada, Germany, United Kingdom +1 more $102K - $164K per year 5-10 yrs exp Others

The Major Gifts Officer is responsible for identifying, cultivating, and closing major gifts ranging from $50,000 to over $1M. They will manage a portfolio of donors, document interactions in Salesforce, and collaborate with leadership to create compelling cases for support.

Staff Product Engineer, Enterprise AI

Canada, United States $185K - $220K per year 10+ yrs exp Software Development

You will own the implementation of Thunderbolt product features from concept through launch, working across the full stack to build AI-powered tools for enterprise use. You will collaborate with cross-functional teams to translate product vision into executable technical plans while ensuring high standards for quality, security, and reliability.

Senior Accounting Manager

United States $200K - $217K per year 5-10 yrs exp Finance

The Senior Accounting Manager is responsible for the integrity, accuracy, and scalability of accounting operations across Mozilla's non-profit and for-profit entities. This role oversees financial close processes, treasury activities, tax compliance, audit management, and the development of internal financial controls.

Director, Portfolio Management (Mozilla.org)

United States $240K - $280K per year 10+ yrs exp Others

The Director of Portfolio Management will lead portfolio planning, governance, and performance management across Mozilla's various organizations. They are responsible for integrating strategic priorities, managing capital allocation, and facilitating cross-organizational execution to advance the nonprofit mission.

Senior Staff Product Manager, Browser Control Platform

United Kingdom £111K - £148K per year 10+ yrs exp Product

The role involves owning the shared foundation and building blocks that allow external tools and internal teams to interact with the Firefox browser. You will define the strategy for third-party AI integrations while ensuring the platform remains secure, reliable, and compliant with open standards.

Senior Staff Product Manager, Browser Control Platform

Finland €72000 - €96000 per year 5-10 yrs exp Product

You will own the shared foundation and building blocks that allow external tools and internal teams to interact with the Firefox browser. This involves defining the strategy for third-party AI assistants and ensuring the platform remains secure, reliable, and scalable.

Senior Staff Product Manager, Browser Control Platform

Belgium €104K - €139K per year 10+ yrs exp Product

The role involves owning the shared foundation and building blocks that allow external tools and internal teams to interact with the Firefox browser. You will define the strategy for third-party AI assistants and ensure the reliability, security, and adoption of the browser control platform.

Senior Staff Product Manager, Browser Control Platform

Germany €103K - €137K per year 10+ yrs exp Product

You will own the shared foundation and building blocks that enable external tools and internal teams to interact with the Firefox browser. This involves defining the strategy for third-party AI assistants and ensuring the platform remains secure, reliable, and compliant with open standards.

Senior Staff Product Manager, Browser Control Platform

France €90000 - €120K per year 10+ yrs exp Product

You will own the shared foundation and building blocks that allow external software and internal teams to interact with the Firefox browser. This involves defining the strategy for third-party AI assistants and ensuring the platform remains secure, reliable, and scalable.

Marketing Data Science Manager

United States $166K - $260K per year 5-10 yrs exp Software Development

You will set the strategy and roadmap for Marketing Data Science while leading the team in developing core capabilities across performance and brand marketing. You will also partner with cross-functional teams to deliver actionable insights that drive Firefox's growth and marketing investment outcomes.

Marketing Data Science Manager

Canada 149K - 220K per year 5-10 yrs exp Software Development

You will set the strategy and roadmap for Marketing Data Science while leading the development of core capabilities in performance and brand marketing. You will also partner with cross-functional teams to translate data-driven insights into practical recommendations that drive Firefox's growth.

Marketing Data Science Manager

United States 5-10 yrs exp Software Development

You will set the strategy and roadmap for Marketing Data Science while prioritizing high-impact opportunities with key partners. Additionally, you will lead the development of core capabilities in performance marketing, brand measurement, and user insights to drive business growth.

Staff Product Manager, Search Experiences

United States $139K - $218K per year 5-10 yrs exp Product

Define and drive the product strategy and roadmap for search features within the Firefox Desktop browser. Lead end-to-end experimentation and partner with cross-functional teams to deliver privacy-respecting, AI-powered search experiences.

Front End Engineering Manager, Firefox Desktop

United States $166K - $260K per year 5-10 yrs exp Others

The Engineering Manager will lead a geographically distributed team to drive improvements to the Firefox Desktop user interface. They are responsible for delivering high-quality software, managing project timelines, and fostering the professional development of team members.

Staff Solutions Engineer (DACH), Firefox Enterprise

Germany 5-10 yrs exp Software Development

Lead technical discovery and solution design to help enterprises in the DACH region deploy Firefox Enterprise in secure, regulated environments. Partner with sales to manage technical relationships and validate interoperability across security and infrastructure systems.

Staff Solutions Engineer (DACH), Firefox Enterprise

Germany €81000 - €108K per year 5-10 yrs exp Software Development

Partner with sales to lead technical discovery and design solutions for Firefox Enterprise across the DACH region. Manage technical relationships with customers to ensure successful evaluation, pilot, and deployment in complex regulated environments.