Senior Software Development Engineer

This is a hybrid (test operations, SRE)-type role in support of scalable build test automation as well as architecting test strategy for all mobile platforms. In this senior role, you will be joining a team of quality owners dedicated to applying the highest industry-standard test engineering practices for all our Mozilla mobile products.

Enjoy working collaboratively with a broad range of project teams inside and outside Mozilla including mobile developers, product, localization, release engineering, IT, operations as well as Firebase community and Bitrise support staff.


Contribute to the team in a spirit of mutual respect and support, look for opportunities to both learn and mentor as the need arises.


Design, build and maintain test infrastructure to support scalable and robust test automation.


Provide architectural guidance for manual testing strategies focused on user experience.


Ensure our CI/CD build test pipelines and monitoring tools remain reliable for maintaining product integrity for all iOS and Android products.

5+ years of experience in iOS and/or Android test automation.


Fluency in Python, Bash and Linux OS.


Proficiency with XCode and/or Android Studio.


Adept with Git standard usage and code reviews.


Excellent written and verbal communication skills.


Ability to architect test strategy and provide gap analysis.


TestOps or SRE, SDET experience.


Commitment to our values:


Welcoming differences


Being relationship-minded


Practicing responsible participation


Having grit