Founding Research Engineer
a16z-speedrun · Posted Aug 31, 2026
- San Francisco, California, United States
- Hybrid
- Full-time · Lead
- Visa sponsorship
A founding role focused on building systems, training models, and owning end-to-end infrastructure to turn human interaction data into high-quality training signals for frontier AI labs.
Compensation
Competitive compensation + equity
Responsibilities
- Build systems and train models for frontier multi-modal research
- Design and scale infrastructure that turns user behavior into high-quality training signals
- Optimize internal pipelines using GPU resources and proprietary data
- Collaborate with leading AI labs to create benchmarks and reward models
- Open-source and publish portions of work to support the community
Requirements
- Nice to have: Publication track record
- Nice to have: Experience with speech-to-text models
- Nice to have: Experience with regional dialects