"closed loop training" Jobs

167 open tech roles matching “closed loop training”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: AI/ML, Python, Machine Learning. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 167 results

baseten

Join Baseten as a Post-Training Applied Researcher to enhance AI models for leading companies in a collaborative environment.

baseten San Francisco Published 2 weeks ago
Flexible on stack
Harvey AI

Join Harvey AI as a Research Engineer to drive post-training experiments and enhance legal AI models.

Harvey AI San Francisco $231k–$340k/yr Published 3 months ago
Flexible on stack
Cartesia

Join Cartesia as a Researcher to enhance multimodal models through innovative post-training methods and alignment techniques.

Cartesia *HQ - San Francisco, CA Published 1 year ago
Preference Model

Join Preference Model as a Research Engineer to advance self-directed learning in large language models within a fast-paced startup.

Preference Model San Francisco Published 1 month ago
Flexible on stack
Mirendil

Join Mirendil as a staff engineer to build the post-training stack for frontier reasoning models in a tech-first startup.

Mirendil San Francisco $300k–$400k/yr Published 3 months ago
Cognition

Join a small, highly selective team to enhance AI model capabilities at Cognition in San Francisco.

Cognition San Francisco Published 2 months ago
AI-first team
Preference Model

Join Preference Model as a Research Engineer to advance self-directed learning in large language models within a fast-paced startup.

Preference Model San Francisco, United States Published 2 days ago
Flexible on stack
Mirendil

Join Mirendil as a Research Engineer to accelerate AI self-improvement through innovative ML systems.

Mirendil San Francisco $300k–$400k/yr Published 4 months ago
Distyl AI

Join Distyl AI as a Research Engineer to bridge AI research and production systems, enhancing AI behavior and reliability.

Distyl AI San Francisco $150k–$250k/yr Published 3 months ago
Carta

Lead technically complex AI projects at Carta, focusing on post-training and model development in a collaborative environment.

Carta San Francisco, CA; New York City, NY $242.3k–$285k/yr Published 1 month ago
Flexible on stack
Reflection AI

Join Reflection AI as a Data Quality Engineer to ensure high-quality data for model training in a mission-driven research lab.

Reflection AI San Francisco, CA Published 9 months ago
Flexible on stack
baseten

Join Baseten as a Forward Deployed Engineer to solve complex AI challenges for leading companies.

baseten San Francisco Published 2 months ago
Flexible on stack
baseten

Join Baseten as an AI Engineer to build AI-driven product features and enhance internal workflows.

baseten San Francisco Published 2 months ago
Flexible on stack
Hedra

Join Hedra as a Research Engineer to lead the development of action-conditioned world models in a pioneering Physical AI team.

Hedra San Francisco Published 6 months ago
Flexible on stack
Anthropic
Anthropic San Francisco, CA | New York City, NY $300k–$405k/yr Published 6 months ago
Rox

Join Rox as a Founding Applied Research Engineer to shape the future of applied AI with a focus on real-world production challenges.

Rox San Francisco Published 4 months ago
Reflection AI

Join Reflection AI as a Data Ingestion Engineer to build and operate large-scale data ingestion systems for AI model training.

Reflection AI San Francisco, CA Published 4 months ago
Flexible on stack
Anthropic

Lead the enablement of the Claude Platform, creating demos and training for technical teams to showcase AI capabilities confidently.

Anthropic San Francisco, CA | New York City, NY | Seattle, WA $270k–$310k/yr Published 3 months ago
Flexible on stack
Reflection AI

Conduct critical analysis and develop evaluation frameworks to improve AI model capabilities in a fast-paced startup environment.

Reflection AI San Francisco, CA Published 10 months ago