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Foundations Jobs in San Francisco, California, United States

Browse 30 Foundations jobs in San Francisco, California, United States on Inference Jobs.

30 jobs

3 wk. ago

Research Engineer / Research Scientist - Foundations Retrieval Lead

OpenAI

San Francisco, California, United States (Hybrid)$445–555K Yearly

2 wk. ago

RE/RS, Data Understanding - Foundations

OpenAI

San Francisco, California, United States (On-site)$445–555K Yearly

3 wk. ago

Software Engineer, Integrity Foundations

OpenAI

San Francisco, California, United States (On-site)$230–385K Yearly

2 days ago Reflection AI logo

Member of Technical Staff - Engineering Lead, Platform Foundations

Reflection AI

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

Platform Engineering

Infrastructure Engineering

Cloud Infrastructure

Multi-cloud

3 wk. ago

Software Engineer, Foundations Retrieval

OpenAI

San Francisco, California, United States (On-site)$380–555K Yearly

Software Engineering

Information Retrieval

Distributed Systems

Information Retrieval

3 wk. ago

Backend Software Engineer, Applied Foundations

OpenAI

San Francisco, California, United States (On-site)$185–385K Yearly

Applied AI

Applied AI Engineering

Distributed Systems

APIs

3 wk. ago

Full-Stack SWE, Data Acquisition (Foundations)

OpenAI

San Francisco, California, United States (On-site)$293–385K Yearly

Software Engineering

Full-Stack Development

React

Vue

1 day ago

Machine Learning Research Engineer, Agent Data Foundation - Enterprise GenAI

Scale

San Francisco, California, United States (On-site)$264.8–331K Yearly

Machine Learning Research

AI Research Scientist

LLMs

Generative AI

2 days ago Cartesia logo

Software Engineer

Cartesia

San Francisco, California, United States (On-site)$180–250K Yearly

Software Engineer

Platform Engineer

Python

3 wk. ago

Member of Technical Staff - Pre-Training Infra

Reflection AI

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

Pre-Training Infrastructure

ML Infrastructure Engineering

Distributed Training Systems

GPU Computing

7 hr. ago

Research Intern, Model Shaping (Fall 2026)

Together AI

San Francisco, California, United States (On-site)$58.00 – $63.00 Hourly

3 wk. ago

Member of Technical Staff - Safety Lead

Reflection AI

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

AI Safety

Machine Learning Engineer

AI Safety

Red Teaming

2 wk. ago

Researcher, Evals

Cartesia

San Francisco, California, United States (On-site)$220–350K Yearly

AI Research

Machine Learning Research

State Space Models

Evaluation Frameworks

3 wk. ago

Software Engineer, Infrastructure

Cursor

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

3 wk. ago

Engineering Manager, Infrastructure

Cursor

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

3 wk. ago

Software Engineer, Agent Harness

Cursor

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

2 wk. ago

Software Engineer, Services Platform

Cursor

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

3 wk. ago

Software Engineer, Core Services

Cursor

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

3 wk. ago

Senior Staff Software Engineer, Managed Orchestration

Crusoe

San Francisco, California, United States (On-site)$237.6–288K Yearly

1 wk. ago

Staff Software Engineer, Networking

Crusoe

San Francisco, California, United States (On-site)$185–224K Yearly

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