LLMs Jobs in San Francisco, California, United States

LLMs

3w ago

Staff Engineer (Agentic AI & Data)

Zuma

San Francisco, California, United States (Hybrid)

2d ago

Research Internship (Fall, 2026)

Cohere

Canada + 2 more (Remote)

Research Internship

Natural Language Processing

Machine Learning

1w ago

Research Internship Reinforcement Learning (Summer)

Cohere

Worldwide (Remote)

Research Internship

2d ago

Member of Engineering (Reinforcement Learning)

Poolside

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

Applied Research

Research Infrastructure (ML Infra)

Large Language Models

3w ago

Research Engineer, Infrastructure, Numerics

Thinking Machines Lab

San Francisco, California, United States (On-site)$350K – $475K Yearly

Machine Learning Infrastructure

JAX

5d ago

Researcher, Context - Agent Post-Training

OpenAI

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

Agent Research

LLMs

7d ago

Researcher, Computer Use - Agent Post-Training

OpenAI

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

Reinforcement Learning (RL)

Agent Research

LLMs

1w ago

Software Engineer - Model Performance

Baseten

San Francisco, California, US or Remote (Worldwide)$180K – $360K Yearly

Software Engineering

C++

5d ago

Researcher, Post Training

Cartesia

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

AI Research

Machine Learning Engineer

Machine Learning

2w 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

RLHF

1w ago

Researcher, Artifacts - Agent Post-Training

OpenAI

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

Research Scientist

Machine Learning

Software Engineering

3w ago

Prompt Engineer, Agent Prompts & Evals

Anthropic

San Francisco, California, United States (Hybrid)$320K – $405K Yearly

1w ago

Member of Technical Staff, Safety for Agents

Cohere

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

ML Research Engineering

AI Safety

Large Language Models

3d ago

Member of Technical Staff (Applied AI)

Reka

Worldwide (Remote)

Applied AI

Machine Learning Engineer

Transformer Models

1w ago

Python / PyTorch Developer — Frontend Inference Compiler – Dubai

Cerebras

AE or Remote (Europe, Middle East, and Africa + 2 more)

Compiler Engineer

3w ago

Applied Research Intern

Labelbox

San Francisco, California, United States (Hybrid)$35 – $45 Hourly

Applied Research

Machine Learning Infrastructure

3w ago

Research Engineering Manager - Model Training

Perplexity

San Francisco, California, United States (On-site)$300K – $470K Yearly

3w ago

Research Engineer, Infrastructure, Inference

Thinking Machines Lab

San Francisco, California, United States (On-site)$350K – $475K Yearly

AI Infrastructure