CareerPlan

ML Research Scientist, Environments & Harnesses

Alewife, Cambridge, MAFull-time$228k–$304k2026-11-10 → 2026-11-11
Based in United States

Core

Designing synthetic RL environments, multi-agent harnesses, and end-to-end pipelines to enable AI-driven scientific discovery.

Role type

Senior ML Research Scientist (RL Environments & Multi-Agent Systems)

Builds

Synthetic RL environments, multi-agent harnesses, and scalable training pipelines for scientific discovery.

Domain

AI for Science (RL, Multi-Agent Systems, Scientific Workflows)

Deliverable

production ML models

Required skills

Reinforcement Learning, Multi-Agent Systems, Python, Prototyping, Software Engineering, Experiment Design, Reward Shaping, Hierarchical Planning

Preferred skills

Publications (NeurIPS/ICML/ICLR), Domain Science (Biology/Chemistry/Physics), Distributed Compute (Ray/Modal), LLM Inference (vLLM), Workflow Orchestration (Flyte/Airflow)

Responsibilities

Design and prototype new harness capabilities (context compaction, tool interfaces, long-horizon planning, multi-agent swarms). Invent new types of RL environments by transforming scientific workflows and simulators into training signals. Build end-to-end pipelines for synthetic environment generation from raw assets. Prototype and validate environment designs including reward shaping and integration with training loops. Push boundaries of multi-step reasoning for chained tasks and complex evaluation scenarios.

Seniority

Senior, hands-on IC