Staff Product Engineer, Enterprise AI
Mozilla / Thunderbird / Thunderbolt
Thunderbolt is an open-source, cross-platform AI product from the Thunderbird team focused on giving organizations control over data, infrastructure, and model choices. The role is a Staff-level full-stack engineering position to own features end-to-end for AI-powered chat, search, workflow automation, admin, and integrations for enterprise use cases.
What you’ll do
- Own features end to end — concept through launch, adoption, and iteration
- Work full-stack on AI-powered chat, search, research, workflow automation, admin, and integrations
- Drive architecture and enterprise requirements as product moves from early development into enterprise use cases
What they’re looking for
- 10+ years of engineering experience at Staff scope
- Hands-on AI product work (LLMs, RAG, agents, retrieval, model/provider abstraction)
- Comfort in ambiguity; architecture and enterprise requirements are still being defined
- Must reside in and have work authorization for the US or Canada
- No sponsorship
Skills
- Large language models: LLMs, model/provider abstraction, model/provider
- Retrieval-augmented generation: RAG, retrieval
- Agents: agents
- Full-stack development: full-stack, chat, search, workflow automation, admin, integrations
- Self-hosted / regulated deployments: self-hosted, EU AI Act, GDPR, SOC 2
The post
Mozilla / Thunderbird / Thunderbolt | Staff Product Engineer, Enterprise AI | REMOTE (US or Canada) | Full-Time | $185K–$220K USD / $155K–$185K CAD | https://grnh.se/viz7vum71us
We're building Thunderbolt (https://github.com/thunderbird/thunderbolt). We're an 8-person and growing team within the ~60-person company behind Thunderbird, the open-source email client used by 20M+ people.
Thunderbolt is an open-source, cross-platform AI product built on the principle that people and organizations should be in control of their data, infrastructure, and model choices. It's moving from early development into enterprise use cases, and we need someone to own features end to end — concept through launch, adoption, and iteration — not just close tickets.
You'd work full-stack on AI-powered chat, search, research, workflow automation, admin, and integrations. We're looking for 10+ years of engineering experience at Staff scope, hands-on AI product work (LLMs, RAG, agents, retrieval, model/provider abstraction), and comfort in ambiguity — architecture and enterprise requirements are still being defined. Bonus: self-hosted or regulated deployments, EU AI Act / GDPR / SOC 2 familiarity.
Must reside in and have work authorization for the US or Canada. No sponsorship. We read every cover letter - please make it authentic.