Research Engineer

Base pay range

$/yr - $1,/yr

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As a Research Engineer at Metis, you’ll work on building the next generation of autonomous post‑training systems that leverage our Mantis platform. You’ll move seamlessly between papers and production, leading large‑scale experiments, creating optimized training pipelines, and helping shape the future of post‑training autonomy. You’ll have significant ownership, high compute budgets, and the mandate to push the state of the art in applied reinforcement and preference optimization.

• Research and help build an autonomous post‑training agent leveraging the Mantis platform
• Design and execute large‑scale experiments on synthetic data generation and algorithmic architecture
• Develop and refine methods for reinforcement learning, reward modeling, and human feedback integration
• Collaborate cross‑functionally with Core and Platform Engineering to deploy and evaluate models in production settings
• Publish or contribute to leading‑edge research in the post‑training domain
• Use tooling and compute efficiently to iterate on experimental pipelines and accelerate research velocity

• Deep experience in machine learning, preferably reinforcement learning, post‑training, or alignment research
• Demonstrated research contributions; ideally published papers (ICML, NeurIPS) or public implementations
• Strong proficiency in Python and ML frameworks (PyTorch, JAX, or Tensor Flow)
• Comfort with distributed training, high‑throughput data pipelines, and large‑scale experiment management
• Ability to reason independently, formulate hypotheses, and run experiments from idea → insight → product impact

• Base: $200,000–$1,000,000
• Significant Equity
• Full medical, dental, and vision
• Wellness & L&D stipend
• Equinox membership
• Breakfast, lunch, and dinner provided (Unlimited Doordash)
• $25,000 housing stipend

Metis helps enterprises and labs build the most reliable AI agents by leveraging post‑training. Our platform enables the creation, improvement, and deployment of the most capable frontier agents designed for rigorous, real‑world workflows.

• 0 → six‑figure monthly revenue in the last six weeks
• Working with several Fortune 500 enterprises & frontier AI labs
• Growing 150%+ MoM

• Y Combinator, CRV, and executives from OpenAI, Google, Mercor, NVIDIA, and others

• Mid‑Senior level

• Full‑time

• Engineering and Information Technology

• Research Services

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