Grafton Sciences · 22 hours ago
Senior RL Research Scientist
Redwood City, CA
Full-time
Onsite
Senior LevelGrafton Sciences is building AI systems with general physical ability, aiming to achieve superintelligence through innovative technology. The Senior RL Research Scientist will design and train reinforcement learning systems, focusing on optimizing tool control and long-horizon workflows, while collaborating with various teams to deploy RL agents into real workflows.
Machine LearningRobotics
Responsibilities
Build RL environments for optimization, process tuning, and tool orchestration using real-world simulation and digital twins
Design and implement safe RL methods, verifier-integrated rewards, offline→online transitions, and policy evaluation pipelines
Develop state representations, action abstractions, and constraint mechanisms for reliable long-horizon decision-making
Collaborate with LLM researchers, agent systems, simulation teams, and tooling engineers to deploy RL agents into real workflows
Qualification
Required
Strong background in reinforcement learning, optimal control, or sequential decision-making, with experience applying RL to complex real or simulated systems
Familiarity with safe RL, constrained RL, verifier/detector integration, or multi-step policy evaluation frameworks
Demonstrated ability to build RL environments, design reward structures, and diagnose policy behavior at scale
Comfortable working across ML, simulation, systems engineering, and physical-toolchain interfaces in a fast-paced research environment
Minimum education requirement: Master's degree or higher in Computer Science, Engineering, Physics, or a closely related quantitative field
Preferred
Ph.D. in a related field
Benefits
Competitive salary
Meaningful equity
Benefits
Company
Grafton Sciences
Building systems of general physical ability to enable superintelligence
Founded in 2024
11-50 employees
H1B Sponsorship
Grafton Sciences has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
Funding
Current Stage
Early StageCompany data provided by crunchbase