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 (81)

Senior Lead, Enterprise Partnerships & Strategy

United States $175K - $220K per year 10+ yrs exp Others

You will define and execute an enterprise strategy while identifying and advancing strategic partnerships, particularly in sovereignty-focused markets. This involves developing commercial models, leading negotiations, and collaborating with product teams to translate technical capabilities into clear enterprise propositions.

Senior Lead, Enterprise Partnerships & Strategy

Canada 140K - 180K per year 10+ yrs exp Others

You will define and execute an enterprise strategy while identifying and advancing strategic partnerships in sovereignty-focused markets. This involves developing commercial models, leading negotiations, and translating technical capabilities into clear enterprise propositions.

Senior Engineering Manager, Enterprise AI Product

United States $215K - $240K per year 10+ yrs exp Software Development

Lead engineering execution and manage a senior team to transition the Thunderbolt AI product from R&D to a production-ready, enterprise-grade solution. Partner with leadership to define technical strategy, maintain high code quality, and establish scalable operating practices.

Senior Engineering Manager, Enterprise AI Product

Canada 190K - 220K per year 10+ yrs exp Software Development

Lead engineering execution and team management to transition the Thunderbolt AI product from R&D to a production-ready, enterprise-grade solution. Partner with product and technical leadership to define release discipline, maintain high code quality, and scale the engineering team.

Senior Lead, Enterprise Partnerships & Strategy

Canada, United States $175K - $220K per year 10+ yrs exp Others

You will define and execute an enterprise strategy while identifying and advancing strategic partnerships, particularly in Europe. This involves developing commercial models, leading negotiations, and collaborating with product teams to translate technical capabilities into enterprise propositions.

Lifecycle Marketing Operations Manager, Firefox Mobile

Canada 63000 - 93000 per year 5-10 yrs exp Marketing

The Lifecycle Marketing Operations Manager will serve as the operational anchor for Firefox Mobile, translating growth strategies into repeatable execution across ASO and lifecycle programs. They will develop scalable processes, automation, and AI-assisted workflows to improve execution quality and team efficiency.

Lifecycle Marketing Operations Manager, Firefox Mobile

United States 5-10 yrs exp Marketing

The Lifecycle Marketing Operations Manager will serve as the operational anchor for Firefox Mobile, translating growth strategies into repeatable execution across ASO and lifecycle programs. They will develop scalable processes, automation, and AI-assisted workflows to improve execution quality and team efficiency.

Lifecycle Marketing Operations Manager, Firefox Mobile

United States $87000 - $125K per year 5-10 yrs exp Marketing

The Lifecycle Marketing Operations Manager will serve as the operational anchor for Firefox Mobile, translating growth strategies into repeatable execution across ASO and lifecycle programs. They are responsible for coordinating cross-functional workstreams, managing campaign launches, and developing scalable, AI-assisted workflows to improve execution quality.

Staff Security Engineer

United States 5-10 yrs exp Software Development

The Staff Security Engineer will maintain and mature the Information Security Management System (ISMS) while leading ISO 27001 and SOC 2 compliance programs. They will partner with cross-functional teams to design controls, manage audit readiness, and translate compliance requirements into actionable security practices.

Staff Security Engineer

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

The Staff Security Engineer will maintain and mature the Information Security Management System (ISMS) while leading ISO 27001 and SOC 2 compliance programs. They will partner with cross-functional teams to drive policy creation, manage audit execution, and translate compliance requirements into practical workflows.

Staff Security Engineer

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

The Staff Security Engineer will maintain and mature Mozilla's Information Security Management System (ISMS) while leading ISO 27001 and SOC 2 compliance programs. This role involves partnering with cross-functional teams to design controls, manage audit execution, and drive security policy development.

UK GTM Recruiter (Contract)

United Kingdom 5-10 yrs exp Recruitment

The Senior GTM Recruiter will lead full-lifecycle recruitment for commercial and Go-To-Market functions across EMEA and international regions. They will act as a strategic advisor to senior leadership, managing complex negotiations and optimizing hiring processes using data-driven analytics.

Senior Application Engineer, Workplace Technology

United States $116K - $183K per year 5-10 yrs exp Software Development

You will design, build, and maintain automation scripts and integrations for workplace systems like Google Workspace, Slack, and Okta. Additionally, you will collaborate with cross-functional teams to implement AI-driven workflows and ensure secure, scalable identity and access management.

Senior Application Engineer, Workplace Technology

United States 5-10 yrs exp Software Development

You will design, build, and maintain automation scripts, APIs, and integrations for workplace systems like Google Workspace, Slack, and Okta. Additionally, you will collaborate with IT and Security teams to implement secure, scalable workflows and pilot new AI-driven productivity tools.

Senior Application Engineer, Workplace Technology

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

You will design, build, and maintain scripts, APIs, and workflow automations to power workplace systems like Google Workspace, Slack, and Okta. Additionally, you will collaborate with IT and security teams to implement secure onboarding, off-boarding, and AI-driven productivity workflows.

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. You will also collaborate with cross-functional teams and the open-source community to ensure high standards of performance, reliability, and accessibility.

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 ensure system reliability, security, and performance while participating in on-call rotations.

Engineering Manager, Ads

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

Lead a team of software engineers in developing and operating privacy-respecting advertising systems for Firefox Suggest. Partner with cross-functional stakeholders to deliver reliable, scalable backend services while mentoring team members and fostering an inclusive culture.

Engineering Manager, Ads

United States 5-10 yrs exp Others

You will lead a team of software engineers in building and operating privacy-respecting advertising systems for Firefox. This involves mentoring team members, managing project delivery, and collaborating with cross-functional stakeholders to align technical solutions with business and privacy goals.

Engineering Manager, Ads

Canada 149K - 220K per year 5-10 yrs exp Others

You will lead a team of software engineers in developing and operating privacy-respecting advertising systems for Firefox Suggest. This involves mentoring team members, managing project delivery, and collaborating with cross-functional stakeholders to align technical outcomes with business and privacy goals.

Senior Privacy & Compliance Program Manager

United States $115K - $145K per year 10+ yrs exp Product

Coordinate MZLA's privacy and compliance programs, translating legal and security requirements into practical operational processes. Manage vendor reviews, data governance, and audit-readiness efforts to ensure user trust and regulatory compliance.

Senior Privacy & Compliance Program Manager

Canada 100K - 125K per year 10+ yrs exp Product

Coordinate MZLA's privacy and compliance programs, translating complex requirements into practical processes for products and vendor ecosystems. Manage data governance, DSAR workflows, and audit-readiness efforts while partnering with technical teams to ensure privacy-by-design.

Senior Privacy & Compliance Program Manager

Canada, United States $115K - $145K per year 10+ yrs exp Product

Coordinate MZLA's privacy and compliance programs, translating legal and security requirements into practical operational processes. Manage vendor reviews, data governance, and audit-readiness efforts to ensure user trust and regulatory compliance.

Technical Content Marketing Specialist

United States $72000 - $86000 per year 2-5 yrs exp Writing

Create and execute marketing programs to drive awareness, adoption, and retention for Thunderbird's communication products. This includes managing social media, drafting blog posts, and coordinating product launches across digital channels.

Technical Content Marketing Specialist

Canada, United States $72000 - $86000 per year 2-5 yrs exp Writing

Create and execute marketing programs to drive awareness and adoption of Thunderbird's communication products across desktop, mobile, and web. Manage day-to-day social media, blog posts, email campaigns, and product announcements while tracking performance metrics.

Technical Content Marketing Specialist

Canada 72000 - 82000 per year 2-5 yrs exp Writing

Execute day-to-day social media activities and create digital content such as blog posts, newsletters, and product announcements to drive user adoption. Coordinate with cross-functional teams to support product launches and track performance metrics to optimize marketing campaigns.

Director of Product, Gaming (New Products)

Canada 208K - 306K per year 10+ yrs exp Others

Lead the vision and strategy for new gaming products, defining the business model and go-to-market strategy for Mozilla's entry into the PC gaming market. Manage cross-functional teams of design and engineering to build user-centric products and define performance metrics to drive the roadmap.

Senior Software Engineer, Firefox Desktop

Netherlands €66000 - €88000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, participate in code reviews, and resolve complex bugs.

Senior Software Engineer, Firefox Desktop

France €53000 - €71000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Senior Software Engineer, Firefox Desktop

Germany €68000 - €91000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, participate in code reviews, and resolve complex bugs.

Senior Software Engineer, Firefox Desktop

Finland €45000 - €60000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, participate in code reviews, and resolve complex bugs.

Senior Software Engineer, Firefox Desktop

Spain €58000 - €77000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Senior Software Engineer, Firefox Desktop

Sweden 513K - 684K per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Senior Software Engineer, Firefox Desktop

United Kingdom £66000 - £87000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Senior Software Engineer, Firefox Desktop

Belgium €56000 - €74000 per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Senior Business Development Manager, New Products

Canada 129K - 189K per year 5-10 yrs exp Sales

Lead the go-to-market motion for a new browser infrastructure platform by identifying design partners and converting early demand into commercial contracts. You will manage the full sales cycle from discovery to pilot and collaborate with engineering to shape the product roadmap.

Senior Business Development Manager, New Products

United States 5-10 yrs exp Sales

Lead the go-to-market motion for a new browser infrastructure platform by identifying design partners and converting demand into commercial contracts. Collaborate with engineering to translate customer needs into product requirements and build strategic partnerships with AI and infrastructure vendors.

Senior Business Development Manager, New Products

United States $152K - $238K per year 5-10 yrs exp Sales

Lead the go-to-market motion for a new browser infrastructure platform by identifying design partners and converting early demand into commercial contracts. You will manage the full sales cycle from exploratory conversations to pilots and commercial deployment while partnering with engineering to shape the product roadmap.

Senior Product Security Engineer

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

Deliver major features and architectural improvements for the Firefox add-ons ecosystem, including moderation pipelines and developer tools. Ensure platform reliability and security through monitoring, incident response, and collaboration with cross-functional teams.

Senior Software Engineer, Firefox Desktop

Canada 94000 - 151K per year 2-5 yrs exp Software Development

Develop and improve Firefox features related to installation, updates, and low-level OS integration for Windows and macOS. Collaborate with a distributed team to scope projects, resolve complex bugs, and drive architectural discussions.

Director of Product, Gaming (New Products)

United States $205K - $351K per year 10+ yrs exp Others

Lead the vision and strategy for new gaming products, defining the business model and go-to-market strategy from the ground up. Manage cross-functional design and engineering teams to build user-centric products while aligning with Mozilla's mission.

Senior Software Engineer, Cloud Engineering

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

Develop and maintain an Internal Developer Infrastructure Platform focusing on CI/CD, observability, and Kubernetes optimization. Guide technical decision-making and create agentic workflows to improve developer productivity and platform scalability.

Creative Producer, Europe (Contract)

Germany 5-10 yrs exp Others

Lead the end-to-end production and execution of full-funnel Firefox marketing campaigns across global and regional markets. Manage external agencies, freelancers, and vendors while overseeing budgets, timelines, and operational processes.

Senior Engineering Manager, AI Product (Thunderbolt)

Canada, United States $215K - $240K per year 10+ yrs exp Software Development

Lead engineering execution and people management for the Thunderbolt AI product, transitioning it from R&D to an enterprise-ready open-source product. This includes managing senior engineers, contributing to the codebase, and establishing scalable operating practices and release disciplines.

Senior Security Engineer, Add-ons Operations

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

Deliver major features and architectural improvements for the Add-ons stack, including automated moderation pipelines and reviewer tools. Ensure platform reliability through monitoring, incident response, and the creation of robust observability systems.

Senior Security Engineer, Add-ons Operations

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

Deliver major features and architectural improvements for the Firefox add-ons ecosystem, including moderation pipelines and developer tools. Ensure platform reliability and security through monitoring, incident response, and robust observability systems.

Senior Security Engineer, Add-ons Operations

United Kingdom £65000 - £87000 per year 5-10 yrs exp Software Development

Deliver major features and architectural improvements for the Add-ons stack, including automated moderation pipelines and developer tools. Ensure platform reliability and security through monitoring, incident response, and collaboration with cross-functional teams.

Senior Security Engineer, Add-ons Operations

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

Deliver major features and architectural improvements for the Add-ons stack, including automated moderation pipelines and reviewer tools. Ensure platform reliability and security through monitoring, incident response, and full-stack development.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack, focusing on WebPKI and security-sensitive web APIs. Design and implement secure web platform features while improving browser reliability, performance, and resource efficiency.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack while implementing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack while designing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack while implementing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack while implementing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Software Engineer, Firefox Security

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

Advance Firefox's security architecture and cryptography stack while implementing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Software Engineer, Firefox Security

Sweden 513K - 684K per year 5-10 yrs exp Software Development

Advance Firefox's security architecture and cryptography stack while implementing secure web platform features. Collaborate with cross-functional teams to resolve stability, performance, and security issues within a complex browser environment.

Senior Machine Learning Engineer, Applied AI Modeling

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

Develop and fine-tune large language models to create intelligent, privacy-aware browser experiences in Firefox. Collaborate with cross-functional teams to prototype and deploy Generative AI features using RAG and intent modeling.

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.

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.

Senior Strategic Account Executive, Firefox Enterprise

Germany 10+ yrs exp Sales

Build and manage the sales pipeline for Firefox Enterprise across the DACH region, targeting large enterprises and public sector accounts. Own the full sales cycle from prospecting and discovery to negotiation and closing commercial wins.

Senior Strategic Account Executive, Firefox Enterprise

Germany €74000 - €99000 per year 5-10 yrs exp Sales

Build and manage the sales pipeline for Firefox Enterprise across the DACH region, targeting large enterprises and public sector accounts. Own the full sales cycle from prospecting and qualification to negotiation and closing commercial wins.

Head of Editorial + Platforms, Mozilla Ecosystem

United States $139K - $175K per year 10+ yrs exp Writing

Lead and unify Mozilla's global editorial vision and storytelling across various platforms, including the main website, social channels, and flagship publications. Act as a strategic partner to coordinate a shared narrative across the entire Mozilla ecosystem to shape public conversation on AI and the internet.

Staff Data Scientist, Firefox

United States $138K - $218K per year 10+ yrs exp Software Development

The Staff Data Scientist will own the analytical strategy for a major product area, defining success metrics and driving data-informed decisions. They will act as a strategic partner to product and engineering leadership while mentoring other data scientists to elevate team standards.

Staff Data Scientist, Firefox

United States 5-10 yrs exp Software Development

The Staff Data Scientist will own the analytical strategy for a major product area, defining success metrics and driving data-informed decisions. They will partner with product and engineering leadership to translate business problems into actionable recommendations while mentoring other team members.