Research Engineer roles

Research Engineer Jobs at AI Startups

There are currently 171 open Research Engineer jobs across 75 AI startups. 42% of these roles are at early-stage (Pre-Seed through Series B) companies. Every listing links straight to the company's official application page.

171Open roles

75Companies hiring

Jul 31, 2026Last updated

Filter by funding stage

Series G+ 35 (20%)Series A 29 (17%)Seed 24 (14%)Series B 19 (11%)Series C 17 (10%)Series E 15 (9%)Series D 15 (9%)Growth 9 (5%)Unknown 5 (3%)Strategic Investment 2 (1%)Series F 1 (1%)

Open Research Engineer Roles

Role	Company	Stage	Location	Posted
Research Engineer, Algorithms	Normal	Growth	New York City	Jul 31, 2026
Research Engineer, AI Models	Encharge AI	Series B	India	Jul 30, 2026
Research Engineer, AI Models	Encharge AI	Series B	Germany	Jul 30, 2026
Research Engineer, Robotic Learning	1X Technologies	Series B	San Carlos, CA	Jul 30, 2026
Research Engineer, Large-Scale Training	Together AI	Series C	San Francisco	Jul 30, 2026
Senior / Staff Research Engineer, Simulation Assets & Content Systems	Waabi	Series C	Toronto, ON	Jul 30, 2026
Research Engineer - Agent Memory	Mem0	Series A	San Francisco Bay Area	Jul 29, 2026
Research Engineer, Domain Scaling	Normal	Growth	New York City	Jul 29, 2026
Staff Research Engineer	Onton	Seed	San Francisco	Jul 29, 2026
Research Engineer	Antimetal	Series A	HQ - NYC	Jul 28, 2026
Member of Technical Staff - Research Engineer	Black Forest Labs	Series B	San Francisco (USA), Freiburg (Germany)	Jul 28, 2026
Research Engineer, Generative Video	Mirage	Growth	Union Square, New York City	Jul 27, 2026
Research Engineer, Agentic Systems	Mirage	Growth	Union Square, New York City	Jul 27, 2026
Research Engineer / Scientist (Robot Learning)	World Labs	Series E	San Francisco	Jul 27, 2026
Research Engineer, Agents	Anthropic	Series G+	Remote (Friendly (Travel-Required))	Jul 24, 2026
Staff Research Engineer, Data Agents	Databricks	Series G+	San Francisco, California	Jul 24, 2026
Research Engineer, Environments	Mercor	Series C	San Francisco	Jul 24, 2026
Senior Quant Research Engineer, Trading & Portfolio Optimization	Arta	Series B	US	Jul 23, 2026
Research Engineer	Decagon	Series D	San Francisco	Jul 22, 2026
Performance Research Engineer (multiple levels)	Efficient Computer	Series A	San Jose, CA OR Pittsburgh, PA	Jul 22, 2026
Research Engineer	Turing	Series E	Colombia, Huila, Colombia	Jul 20, 2026
Research Engineer	Turing	Series E	Brazil	Jul 20, 2026
Staff Research Engineer - Code	Turing	Series E	San Francisco, California, United States	Jul 20, 2026
Research Engineer, Post-Training Inference	Together AI	Series C	San Francisco	Jul 19, 2026
Research Engineer	Ando	Seed	San Francisco	Jul 18, 2026
Staff Research Engineer - Multimodal Generative Modelling	Synthesia	Series E	Europe	Jul 17, 2026
Research Engineer	Sable	Series A	San Francisco	Jul 16, 2026
Research Engineer, Infrastructure, Inference	Thinking Machines Lab	Seed	San Francisco	Jul 16, 2026
Research Engineer, Developer Experience, Tinker	Thinking Machines Lab	Seed	San Francisco	Jul 15, 2026
Research Engineer	Console	Series A	San Francisco (On-site)	Jul 14, 2026
[Expression of Interest] Research Engineer / Scientist, Alignment - London	Anthropic	Series G+	London, UK	Jul 14, 2026
ML/Research Engineer, Safeguards	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Chip Design RL (Reinforcement Learning)	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Code RL (Reinforcement Learning)	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Computer Use	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Cybersecurity RL (Reinforcement Learning)	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Discovery	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Domain Scaling	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Economic Research Data Platform	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Interpretability	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Knowledge Foundations	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Knowledge Team	Anthropic	Series G+	Remote (Friendly (Travel-Required))	Jul 14, 2026
Research Engineer, Life Sciences	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Machine Learning (Reinforcement Learning)	Anthropic	Series G+	London, UK	Jul 14, 2026
Research Engineer, Machine Learning (Reinforcement Learning)	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Machine Learning (RL Velocity)	Anthropic	Series G+	Remote (Friendly (Travel-Required))	Jul 14, 2026
Research Engineer, Machine Learning (RL Velocity)	Anthropic	Series G+	London, UK	Jul 14, 2026
Research Engineer, Model Evaluations	Anthropic	Series G+	Remote (Friendly (Travel-Required))	Jul 14, 2026
Research Engineer, Performance RL (Reinforcement Learning)	Anthropic	Series G+	San Francisco, CA	Jul 14, 2026
Research Engineer, Pretraining	Anthropic	Series G+	London, UK	Jul 14, 2026

View all 171 Research Engineer jobs

FAQ

How many Research Engineer jobs are open at AI startups?

There are currently 171 open Research Engineer jobs across 75 AI startups on Fast AI Jobs.

What funding stages are hiring Research Engineers?

42% of open Research Engineer roles are at early-stage (Pre-Seed through Series B) startups, with the remainder at later-stage and growth companies.

How often is this Research Engineer list updated?

Listings are refreshed daily from official company career pages and deduplicated by posting. Every link points to the original application page.