Diagnose and verify the long tail of WebCompat bugs to reduce Firefox's site-breakage backlog.
Write WebCompat interventions and simple fixes, often with AI assistance, and land them.
Reproduce and triage incoming site-breakage reports from users.
Mozilla is a nonprofit organization behind the Firefox browser and champion of internet health and privacy. It operates as a global, distributed team with a culture of openness, inclusivity, and innovation.
Diagnose and verify the long-tail of WebCompat bugs to reduce Firefox's site-breakage backlog.
Write WebCompat interventions and simple, AI-assisted fixes to resolve reported breakages.
Reproduce and triage incoming site-breakage reports while using browser devtools.
Mozilla is the company behind the Firefox browser and a global mission to keep the internet open and accessible to all. The company employs a geographically distributed team and values innovation, collaboration, and user privacy.
Lead technical architecture and drive complex projects.
Write code, build prototypes, and contribute throughout the development lifecycle.
Mentor engineers through code review and technical discussions.
Thunderbird is one of the world's most trusted open-source email applications, empowering over 20 million people. Our small but growing distributed team includes more than 65 people across seven countries.
Build full-stack tools for reviewing tasks, inspecting agent trajectories, and checking graders.
Create dashboards and metrics to surface quality trends, failure modes, and review health.
Work with QNI and research engineers to scale quality workflows into reliable production products.
HUD builds infrastructure to create RL training data and evals for frontier AI agents, as well as a marketplace to sell these to frontier labs. The team is ~25 people, mostly full-time in-person but some remote, with backing from top VCs and YC W25.