Machine Learning Jobs in California, United States

C++

1mo agoAC

Research Systems Engineer

Applied Compute

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

Research Engineering

Reinforcement Learning

Large Language Models

3mo agoAC

Research Engineer

Applied Compute

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

Research Engineer

Software Development Engineer in Test

Large Language Models

Reinforcement Learning

3mo agoNV

Senior Power Analysis and Optimization Engineer, AI-LLM Systems

NVIDIA

Santa Clara, California, United States (On-site)$136K – $264.5K Yearly

Power Analysis Engineer

ASIC Design Engineer

Power Analysis

ASIC Design

1w agoCE

ML API Features SDET

Cerebras

Sunnyvale, California, United States (Hybrid)

QA Engineer

Mandarin Prompt Evaluation

C++

1w agoPR

AI Trainer - Advanced Mandarin Fluency (GER)

Prolific

Worldwide (Remote)From $30 Hourly

AI Training

AI Model Evaluation

Advanced Mandarin

4w agoAI

ML Runtime Optimization Engineer

Applied Intuition

Sunnyvale, California, United States (On-site)$159.1K – $199.3K Yearly

Machine Learning Engineering

Embedded Software Engineering

PyTorch

JAX

1w agoPR

AI Trainer - Advanced Mandarin Fluency

Prolific

Worldwide (Remote)$30 – $30 Hourly

2w agoAN

Research Scientist, Interpretability

Anthropic

San Francisco, California, United States (Hybrid)$350K – $850K Yearly

AI Research

Machine Learning Research

2mo agoNE

Senior ML Solutions Architect - Token Factory

Nebius

United States (Remote)$215K – $275K Yearly

Solutions Architecture

LLMs

7d agoFI

Helix AI Engineer, Generative AI

Figure

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

AI Engineer

Generative AI

Machine Learning Research

3mo agoOP

Researcher, Health AI

OpenAI

San Francisco, California, United States (Hybrid)$310K – $460K Yearly

AI Research

AI Safety

RLHF

Automated Red Teaming

3mo agoNV

Research Scientist, AI Accelerator SW HW Co-Design - New College Grad 2026

NVIDIA

Santa Clara, California, United States (On-site)$168K – $264.5K Yearly

ASIC Engineering

Machine Learning Research

VLSI

2mo agoTA

Research Engineer, Core ML

Together AI

San Francisco, California, United States (On-site)$200K – $280K Yearly

RL Algorithms

Inference Optimization

3mo agoOP

Applied Data Scientist, Unit Economics Understanding

OpenAI

San Francisco, California, United States (Hybrid)$255K – $405K Yearly

1w agoPR

AI Trainer - Advanced HTML/ CSS Developers

Prolific

Worldwide (Remote)From $40 Hourly

3mo agoRA

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

Reflection AI

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

Data Engineer

Data Quality Engineer

Medical Licensing/Registration

1w agoPR

AI Trainer - Clinicians

Prolific

Worldwide (Remote)From $130 Hourly

AI Trainer

AI Model Evaluation

Board Certification

3w agoAN

Research Engineer, Performance RL

Anthropic

San Francisco, California, United States (Hybrid)$350K – $850K Yearly

AI Research & Engineering

Model Deployment for Business

Reinforcement Learning

CUDA

3mo agoOP

Forward Deployed Engineer (FDE), Life Sciences - SF

OpenAI

San Francisco, California, United States (Hybrid)$220K – $280K Yearly

Forward Deployed Engineer