Senior Software Engineer, Accessibility

Mozilla
$116,000 - $183,000Remote

About The Position

Mozilla Corporation is looking for a skilled developer to work with their passionate Accessibility Team to make the web fully accessible. This is a small, hard-working team that affects the lives of users every day. Using C++ and systems programming expertise, the role will contribute to the core Gecko web rendering engine across various operating systems, shaping Mozilla’s efforts to take Firefox accessibility to the next level. Opportunities to collaborate with other browser teams abound, and working in the open is the norm. The role involves writing code, tests, specifications, building prototypes, solving problems, and analyzing data. Feedback from real users will be synthesized into bug reports, feature designs, and strategic direction to make the web platform even better over time.

Requirements

  • A degree or equivalent in Computer Science or a related field.
  • Demonstrated proficiency with C++.
  • Knowledge of web accessibility and ARIA.
  • Knowledge of Javascript, the web, and web applications.
  • Experience working on cross-platform native applications.
  • Creative problem-solving and debugging skills.
  • Experience writing and debugging multi-process, multi-threaded code.
  • Ability to learn a large and complex multi-language code base.
  • Excellent written and verbal English communication skills.
  • Ability to effectively participate as part of a geographically-distributed open development team.
  • A passion to empower and improve the web for people with a diverse range of abilities.

Responsibilities

  • Improve the architecture, stability, correctness and performance of the core Gecko accessibility engine.
  • Debug and fix problems in our multi-process, multi-threaded codebase.
  • Debug OS specific issues.
  • Build excellent working relationships with engineers and organizational leaders on other teams.
  • Collaborate with design and front-end teams to identify, assess, and remediate accessibility issues.
  • Influence web standards that provide or improve access to new web technology.
  • Work in the open as part of the Mozilla open source project and engage with Mozilla’s global community.
  • Work on infrastructure to expose the web platform to accessibility technology.
  • Meet standards for gecko's memory usage and performance.
  • Implement new web features to enable new kinds of applications and content types.

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
  • 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
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service