CareerPlan

AI Engineer, RL & Evals

San Francisco, California, United StatesFull-time$175k2026-10-12 → 2026-11-10
On-siteVisa sponsorship offered

Core

Build reinforcement learning environments, evaluation frameworks, and production infrastructure for creative, non-verifiable domains.

Role type

Senior IC AI Engineer (RL & Evals)

Builds

RL environments, evaluation frameworks, agent harnesses, context layers, backend systems, and data pipelines

Domain

Generative AI, Reinforcement Learning, Creative Technology

Deliverable

production ML models

Required skills

Reinforcement Learning, Full-stack engineering, Python, PyTorch, ML evaluation frameworks, LLMs, Distributed systems

Preferred skills

Creative technology experience, Generative AI, Crawling/indexing, Agentic frameworks

Technologies

Python, PyTorch, LLMs

Responsibilities

Build and scale RL environments and evaluation frameworks, Design tasks and grading rubrics for design quality, Build agent harnesses and context layers, Collaborate with research teams and frontier labs, Ship production code end to end, Build reliable backend systems and data pipelines

Seniority

Mid-Senior, hands-on IC