Senior Research Engineer Jobs in San Francisco, CA

The Human Factors Research Engineer (HFRE) is part of the Human Factors (HF) organization that aims to maximize usability and desirability of Intuitive products while minimizing risk through scientific research and usability engineering. HFRE is focused on end-to-end experimental and real-world beha...

We raised a $250M Series C to build the search engine for AIs. Led by a16z with existing investors Benchmark Lightspeed and YC doubling down the round brings Exas valuation to $2.2 billion. Read moreExa is building a search engine from scratch to serve every AI agent. We build massive-scale infrastr...

Research Engineer EvalsYoull build the evaluation systems that tell us whether Firecrawl actually works. That sounds simple. It isnt. Our core promise convert any URL into clean structured LLM-ready data reliably is hard to measure rigorously across millions of different websites formats and edge...

About EliseAIAt EliseAI were improving the industries that matter most: housing and healthcare. Everyone needs a place to live and access to quality healthcare yet both are often harder to secure than they should be. By integrating AI agents deeply into existing workflows we make them more efficient...

Job DescriptionWant to work on one of the hardest unsolved problems in voice AI making it actually sound like a human conversationMost voice AI falls apart the moment a conversation gets messy. Someone interrupts emotions shift the flow breaks and the model cant keep up.A small ambitious SF startu...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey. Position: STEM Expert (Physics Chemistry Mathematics Biology) Type:...

Job DescriptionMost AI systems work in demos. Very few hold up in real customer environments.This team is building the decision-making systems behind AI agents that operate across voice chat and email where performance is measured in outcomes not benchmarks.Youll work on models that need to reason...

Job DescriptionWant to build the simulated worlds that test what frontier models are really capable ofThis is a chance to join a teamadvancing the science of post-training and scalable evaluation building reinforcement learning environments that push reasoning planning and long-horizon behaviour to...

About HUDHUD is building infrastructure to create RL training data and evals for frontier AI agents as well as a marketplace to sell these to frontier labs through the HUD marketplace. Our platform is used by frontier labs Fortune 500 companies and startups. Weve raised $15M from top VCs and were YC...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...

Overview:Hedra is a pioneering generative modeling company first models to market now building a Physical AI team to bring these models to real-world industry and economy use cases. As a Research Engineer on our Physical AI team you will lead pre-training and post-training on action-conditioned wo...

By applying to this role you will be considered for Research Engineer roles across all teams at OpenAI.About the RoleAs a Research Engineer here you will be responsible for building AI systems that can perform previously impossible tasks or achieve unprecedented levels of performance. Were looking f...

Job DescriptionResearch Engineer Computer Vision & Machine LearningWant to build vision systems that let machines understand the physical world as naturally as we doThis role sits within a highly technical team developing a new class of computing devices where perception language and interaction ar...

Research Engineer Search/IRResearch Engineer (Focused on Search/IR)Youll own the search and information retrieval systems at the core of Firecrawl the infrastructure that determines how we find rank index and serve web content at scale. Retrieval quality is Firecrawls deepest moat. As AI agents in...

Research Engineer Search/IRResearch Engineer (Focused on Search/IR)Youll own the search and information retrieval systems at the core of Firecrawl the infrastructure that determines how we find rank index and serve web content at scale. Retrieval quality is Firecrawls deepest moat. As AI agents in...

About AnthropicAnthropics mission is to create reliable interpretable and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers engineers policy experts and business leaders working together t...