Lead full-stack development of email and web services, design scalable architectures, monitor and improve email delivery and sender reputation, build prototypes, ensure reliability and security, participate in on-call rotation, and collaborate with designers and product teams.

Lead full-stack development and architecture for email and account web services. Build features, monitor and improve email delivery and sender reputation, implement scalable, secure infrastructure, run experiments with designers and product, perform code reviews, and participate in on-call rotation to ensure service reliability.

Lead full‑stack development for email and web services, improve email delivery and reputation, design scalable architectures, build prototypes, monitor metrics, ensure reliability, participate in on‑call, and collaborate with designers and community.

Lead full-stack development and architecture for accounts and email services. Build prototypes and features, monitor email delivery and sender reputation, diagnose service issues, improve security/logging/performance/accessibility, conduct code reviews, collaborate on product and design, and participate in a shared on-call rotation to maintain reliable services.

The Staff Financial Analyst will manage budgeting and forecasting, develop financial models, automate reporting, and collaborate across departments to enhance financial operations.

The role focuses on driving growth for Firefox desktop by developing marketing strategies, authoring audience targeting, improving user retention, and collaborating with teams for product marketing and user experience enhancements.

As a Staff Financial Analyst, you will lead financial planning processes, reporting, and strategic analysis, partnering across functions to improve reporting infrastructure and provide executive-level insights.

The Staff Financial Analyst will lead financial planning, reporting, and analysis, driving budget discipline and automation of reporting processes. Responsibilities include consolidating forecasts, partnering with diverse teams, and enhancing reporting infrastructure.

As a Senior Data Scientist, you will evaluate revenue growth opportunities, develop analytical frameworks, create executive reports, and ensure data accuracy, influencing business decisions through strong technical execution and communication.

The Staff Data Scientist will lead revenue forecasting efforts, develop models in Python, and communicate insights to senior leadership while mentoring other data scientists.

The Staff Data Scientist leads revenue forecasting and reporting, develops and maintains models, and communicates insights to senior leadership.

The Senior Data Scientist will evaluate revenue growth opportunities, develop analytical frameworks, produce reports, and ensure data accuracy for decision-making.

Lead a backend Ads engineering team: mentor engineers, deliver scalable privacy-respecting ad systems, partner with product and stakeholders, ensure quality/security/privacy, hire and grow the team.

Build and maintain backend services for advertising functionality, implement APIs and data integrations, ensure correctness and scalability in a privacy-conscious environment, collaborate with cross-functional partners, participate in code reviews and on-call duties, and gradually take on more complex Ads domain problems.

Develop and improve Firefox's crash reporting features while analyzing crash data and collaborating with the OS Integration team.

Develop and maintain Firefox's crash reporting systems across operating systems, ensuring high-quality user experiences while analyzing crash data and collaborating in a distributed team environment.

The Firefox OS Integration Engineer will focus on developing and maintaining crash reporting features for Firefox, analyzing crash data, and collaborating within a distributed team.

You will develop and maintain Firefox crash reporting, analyze crash data, and collaborate in a distributed team to ensure high product quality.

Develop, test, and ship fixes for Firefox crash reporting, analyze crash data, and collaborate with a distributed team to ensure high product quality.

The OS Integration Engineer will enhance Firefox crash reporting, maintain low-level OS interactions, analyze crash data, and collaborate in a distributed team to improve product quality.