AI engineer jobs in San Mateo

AI engineering roles in San Mateo, United States — LLM apps, RAG, agents, evals and inference. Pulled from company career sites, never scraped aggregators.

23 open roles

Open roles: 23
Median salary: $230k
Top skill: Python

Hiring most: Roblox 13 Fireworks AI 5 Freshworks 4 Skydio 1

Common stack: Python 10 Kubernetes 9 Quantization 8 AWS 7 GPU 7 Orchestration 7 Embeddings 6 Go 6 Azure 5 GCP 5

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Senior Software Engineer, Machine Learning (Communication Safety)

Roblox · San Mateo, CA, United States

$260k–313k/yr

Posted 8d ago On-site Senior
Principal Machine Learning Engineer, Content Safety

Roblox · San Mateo, CA, United States

$295k–345k/yr

Posted 11d ago On-site Principal Quantization LoRA Distillation Computer vision
Senior Software Engineer: Assistant

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 2w ago On-site Senior Tool use Orchestration Eval harnesses C++
Staff Engineer - Machine Learning

Freshworks · San Mateo, CA, United States

$211k–261k/yr

Posted 3w ago Hybrid Staff LangChain RAG Pinecone Weaviate
MTS, Research Engineer

Fireworks AI · San Mateo

$250k–400k/yr

Posted 3w ago On-site vLLM Embeddings GPU Triton
Technical Director - AI Roblox Studio

Roblox · San Mateo, CA, United States

$399k–458k/yr

Posted 3w ago On-site Manager Tool use Quantization RLHF Distillation
Principal Engineer

Freshworks · San Mateo, CA, United States

Posted 3w ago Hybrid Principal LangChain RAG Embeddings Multi-agent
Staff Backend AI Platform Engineer

Freshworks · San Mateo, CA, United States

$225k–278k/yr

Posted 4w ago Hybrid Staff LangChain RAG Pinecone Weaviate
[2026] Senior Machine Learning Engineer (Systems), Embodied AI/NPCs, ML Platform - PhD Early Career

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 4w ago On-site Senior GPU Quantization Deep learning Kubernetes
[2026] Senior Machine Learning Engineer (Systems), Embodied AI/NPCs, ML Platform - PhD Early Career

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 4w ago On-site Senior GPU Quantization Deep learning Kubernetes
GTM AI Engineer

Freshworks · San Mateo, CA, United States

$192k–238k/yr

Posted 5w ago Hybrid Mid Tool use Orchestration MCP Eval harnesses
Senior Machine Learning Engineer, Reliability

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 6w ago On-site Senior Go
Distinguished Machine Learning Engineer - Safety

Roblox · San Mateo, CA, United States

$399k–458k/yr

Posted 6w ago On-site Principal NLP Computer vision
Senior Software Engineer - Fraud

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 6w ago On-site Senior
AI Field Engineer - Enterprise

Fireworks AI · San Mateo

$200k–260k/yr

Posted 7w ago On-site vLLM Embeddings GPU TensorRT
AI Field Engineer - Strategic Partnerships

Fireworks AI · San Mateo

$200k–260k/yr

Posted 7w ago On-site LangChain LlamaIndex vLLM Embeddings
Senior Software Engineer, UGC Validation

Roblox · San Mateo, CA, United States

$197k–243k/yr

Posted 7w ago On-site Senior Python C++
AI Field Engineer - AI Natives

Fireworks AI · San Mateo

$200k–260k/yr

Posted 7w ago On-site vLLM Embeddings GPU TensorRT
Member of Technical Staff- Full Stack

Fireworks AI · San Mateo

$175k–220k/yr

Posted 8w ago On-site Staff LangChain LlamaIndex Embeddings Orchestration
Principal Software Engineer, GPU Compute

Roblox · San Mateo, CA, United States

$345k–399k/yr

Posted 8w ago On-site Principal GPU Kubernetes Go
Senior Machine Learning Engineer, GenAI Data

Roblox · San Mateo, CA, United States

$243k–295k/yr

Posted 2mo ago On-site Senior Orchestration Ray Kubeflow Python
Autonomy Engineer - ML & DL Infrastructure

Skydio · San Mateo, California, United States

$170k–278k/yr

Posted 2mo ago Hybrid Deep learning
Principal Model Optimization Engineer

Roblox · San Mateo, CA, United States

$295k–345k/yr

Posted 2mo ago On-site Principal GPU Triton TensorRT Quantization