About DeeptuneDeeptune is an RL environments lab within Mercor that builds training gyms for AI agents: high-fidelity simulations where AI learns to perform real-world tasks through reinforcement learning. We work with the leading AI labs to help them train the next generation of agentic models, and our environments have already contributed to recent breakthroughs in computer use, code generation, and multi-step task completion.
About YouYou're a strong engineer across backend and infrastructure (Python, Go, TypeScript, etc.) with a deep interest in agentic AI.
- We care more about what you've done, not how long you've been doing it.
- You've been a founding engineer, founded your own company, or had a major impact at a top-tier company, and you're ready to join an early-stage team.
- You are motivated by ownership, impact, and building frontier tech.
- Your work is a craft you want to master.
- You thrive in ambiguity and love hard problems.
- You appreciate diverse perspectives and uncommon ideas.
- You are excited about building in-person, 5 days a week, from our office in One World Trade.
You'll also build direct partnerships with leading AI labs and enterprises, and contribute hands-on to improving frontier model quality through data, evaluation, and systems - work that sits squarely in the areas the field agrees matter most right now: RL with verifiable rewards, rubric-based reward modeling for subjective and agentic domains, and the pipelines that turn raw human demonstrations into training-ready environments.
This role requires high ownership and abstraction: setting direction, driving outcomes, and staying hands-on while leading.
What We're Looking For- 4 - 10 years in engineering; 2-3+ years experience with
- Strong background in building scalable systems
- Comfort with core ML/LLM concepts - post-training, evaluation metrics, reward modeling - deep enough to partner with researchers, not just consume their output
- Ability to lead in ambiguous, fast-moving environments with sound technical judgment
- Proven ability to coach engineers and drive execution
- Strong ownership mindset with pragmatic decision-making
Benefits- $15K relocation bonus (for moving to the New York metropolitan area)
- $10K housing bonus (if you live within 0.5 miles of our office)
- $1.5K monthly stipend for meals
- Free Equinox membership
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
- 401(k) with company match
