LLM Post-Training Jobs

Fine-tuning

1w ago

Machine Learning Systems Research Engineer, Agent Post-training - Enterprise GenAI

Scale

San Francisco, California, United States (On-site)$250K – $350K Yearly

ML Research Engineer

LLM Training

4w ago

Member of Technical Staff, Post-Training

Cohere

London, England, United Kingdom (Hybrid)

AI Research

Machine Learning Engineering

JAX

3w ago

Member of Engineering (Post-training)

Poolside

Europe, Middle East, and Africa, North America (Remote)

Applied Research

Large Language Models (LLM)

Transformers

1w ago

Staff Machine Learning Research Engineer, Agent Post-training - Enterprise GenAI

Scale

San Francisco, California, United States (On-site)$250K – $350K Yearly

AI Research Engineer

LLM Training

Reinforcement Learning Engineering

4w ago

LLM Reinforcement Learning Framework Engineer

NVIDIA

Shanghai, Shanghai, China (On-site)

LLM Engineering

AI Research & Engineering

PyTorch

6d ago

Senior Research Scientist, Nemotron Post-training

NVIDIA

United States (Remote)$192K – $356.5K Yearly

Research Scientist

Post-training Engineer

Reinforcement Learning

Agentic Systems

1w ago

Research Engineer, Production Model Post Training

Anthropic

San Francisco, California, United States (Hybrid)$350K – $500K Yearly

1w ago

Machine Learning Research Scientist / Research Engineer, Post-Training

Scale

San Francisco, California, United States (On-site)$252K – $315K Yearly

4w ago

Senior Applied Scientist

Hippocratic AI

Palo Alto, California, United States (On-site)

Applied Scientist

AI Research Scientist

RLVR

4w ago

Researcher, Computer Use - Agent Post-Training

OpenAI

San Francisco, California, United States (On-site)$250K – $380K Yearly

Reinforcement Learning (RL)

Agent Research

LLMs

4w ago

Member of Technical Staff - Post-Training

Reflection AI

San Francisco, California, United States (On-site)

AI Research

Large Language Models

4w ago

Member of Technical Staff - Data Quality Engineer (Post-training)

Reflection AI

San Francisco, California, United States (On-site)

Data Engineer

Data Quality Engineer

4w ago

Researcher, Post Training

Cartesia

San Francisco, California, United States (On-site)$180K – $350K Yearly

AI Research

Reinforcement Learning

Machine Learning Engineering

4w ago

LLM Inference Engineer

Hippocratic AI

Palo Alto, California, United States (On-site)

LLM Engineering

LLM Inference

Distributed Serving

1w ago

High-Performance LLM Training Engineer - New College Grad 2026

NVIDIA

Santa Clara, California, United States (On-site)$124K – $195.5K Yearly

LLM Training Engineering

High-Performance Computing

PyTorch

JAX

4w ago

Researcher, Artifacts - Agent Post-Training

OpenAI

California, United States (Remote)$250K – $380K Yearly

Research Scientist

Software Engineering

4w ago

Researcher, Context - Agent Post-Training

OpenAI

San Francisco, California, United States (On-site)$250K – $380K Yearly

Agent Research

LLMs

Reinforcement Learning

1w ago

Sr. Staff Machine Learning Researcher - Model Training & Optimization

Tenstorrent

Toronto, Ontario, Canada (Hybrid)$100K – $500K Yearly

ML Models

PyTorch

4w ago

Member of Technical Staff, Integration/RL Team (Research Engineer)

Cohere

Paris, FR or Remote (Eastern Time Zone, United States + 27 more)

Research Engineer