Senior Software Engineer

Summary

Join Mozilla as a Senior Software Developer to build and maintain key backend systems and support frontend implementations for the Relay Engineering Team.

Requirements

• 7+ years of experience in software development with a strong focus on frontend technologies
• In-depth knowledge of JavaScript, Typescript, React, next.js, SCSS, and a willingness to contribute to full-stack development when needed
• Experience in configuring, implementing, and maintaining Google Analytics 4 (GA4) to track and analyze user behavior
• Proficiency with back-end technologies including Python, Django, and PostgreSQL
• Experience managing cloud platforms like Heroku, AWS, or GCP, with a strong understanding of DevOps practices and SRE collaboration
• Understanding of privacy and security principles
• Experience with monitoring tools such as Grafana, Sentry, and BigQuery, including data-driven optimization and troubleshooting
• Strong communication skills and ability to collaborate across engineering, product, and operations teams
• Experience mentoring junior engineers and driving technical excellence in code quality, testing, and process improvements

Responsibilities

• Lead frontend development, working with JavaScript, Typescript, React, and next.js
• Contribute to backend development when required, using Python, Django, and PostgreSQL
• Design, implement, and maintain code for email and phone number masking using AWS and Twilio APIs, focusing on security and privacy
• Periodically rotate into a Base Load Engineer (BLE) role : handling releases, dependency updates, and incoming work requests
• Collaborate with DevOps (SRE) to manage and maintain production environments
• Monitor and optimize system performance, leveraging tools such as Grafana, Sentry, and BigQuery
• Partner with cross-functional teams to align on project goals and ensure seamless frontend-backend integration
• Participate in code reviews to maintain high standards of code quality and system reliability
• Participate in security and privacy reviews, ensuring that all data protection measures meet compliance standards

Benefits

• Generous performance-based bonus plans to all eligible employees
• Rich medical, dental, and vision coverage
• Generous retirement contributions with 100% immediate vesting
• 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