Founding RL Engineer
Core
Design and build reinforcement learning environments, reward functions, and training pipelines to help AI agents handle complex work.
Role type
Founding RL Engineer
Builds
Reinforcement learning systems and AI agents
Domain
Artificial Intelligence / Reinforcement Learning
Deliverable
production ML models
Required skills
Reinforcement learning, Python, PyTorch, JAX, distributed training, GPU infrastructure, RL environments, reward functions, training pipelines, evaluation frameworks
Preferred skills
LLM post-training, agent training, simulation frameworks, training libraries
Technologies
PPO, GRPO, DPO, RLHF, RLAIF
Responsibilities
Design and build RL environments, reward functions, and training pipelines; Train and fine-tune models using RL methods; Build evaluation frameworks; Run experiments and interpret results; Scale training on GPU clusters; Turn research ideas into production systems
Seniority
Founding, hands-on IC
