Reflection AI
Developing open-source frontier artificial intelligence models and coding agents.
Company facts
- Founded
- 2024
- Employees
- 111
- Headquarters
- United States
- Type
- Private
- Funding
- Series B · $2B · 2025
Open positions

Member of Technical Staff - Post-Training
Build and optimize post-training systems for large language models, including data pipelines, reward models, and reinforcement learning to improve reasoning and instruction-following.

Member of Technical Staff - Engineering Lead, Shared Services
Leads a team building and scaling the shared infrastructure (distributed systems, Kubernetes, and service platforms) that supports AI research, training, and production at an open-source AI lab in San Francisco.

Member of Technical Staff, Data Ingestion Engineer
Our Mission Reflection is a research lab making intelligence open and accessible for everyone to use, customize, and build on. We build open models that let anyone control their intelligence and help shape the future…

Member of Technical Staff, Web Crawl Engineer
Our Mission Reflection is a research lab making intelligence open and accessible for everyone to use, customize, and build on. We build open models that let anyone control their intelligence and help shape the future…