Machine Learning Engineer jobs in San Francisco hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $297,640/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
collate.com · HQ: San Francisco, United States · Clinical Trial Software · Document AI · 51-200 employees · Startup · Trust D · Hiring 11
HQ: San Francisco, United States · Clinical Trial Software · Document AI · 51-200 employees · Startup · Trust D · Hiring 11
Our mission Accelerate life-saving innovations by creating accurate documentation for the life sciences industry. Catalyze progress Automate paperwork at every stage of development and commercialization.
intology.ai · HQ: San Francisco, United States · AI Research Labs · Machine Learning · 1-10 employees · Est. 2025 · Likely startup · Hiring 2
HQ: San Francisco, United States · AI Research Labs · Machine Learning · 1-10 employees · Est. 2025 · Likely startup · Hiring 2
Automated AI R&D for LLM Training Drug Discovery LLM Training Drug Discovery Genomics Materials Science Scientific Discovery Quantitative Trading Search & Recommendation Risk & Forecasting All. LLM Training Drug Discovery.
depthfirst.com · HQ: San Francisco, United States · Penetration Testing · Cybersecurity AI · Application Security · 201-500 employees · Est. 2024 · Startup · Trust C · Hiring 19
HQ: San Francisco, United States · Penetration Testing · Cybersecurity AI · Application Security · 201-500 employees · Est. 2024 · Startup · Trust C · Hiring 19
Headquartered in San Francisco, California, Depthfirst is an AI-native application security company providing software risk detection and autonomous remediation solutions. The company's platform analyzes source code, business logic, software dependencies, and cloud infrastructure to identify critical vulnerabilities and execute agentic penetration testing. By integrating automated code review and merge-ready pull requests directly into developer workflows, it enables engineering and security teams to validate threats and remediate vulnerabilities across their software pipeline.
skild.ai · HQ: Pittsburgh, United States · Foundation Models · Robotic Software & Control Systems · Robotics AI · 1001-5000 employees · Est. 2023 · Trust B · Hiring 52, 2 new
HQ: Pittsburgh, United States · Foundation Models · Robotic Software & Control Systems · Robotics AI · 1001-5000 employees · Est. 2023 · Trust B · Hiring 52, 2 new
Skild AI is building a general purpose robot brain that transfers across different machines and tasks rather than being trained for one robot at a time. Its models learn from a very large and diverse dataset of robot and human interaction, and the company has demonstrated locomotion, manipulation and inspection behaviours on multiple hardware platforms. The laboratory was founded by robotics faculty from Carnegie Mellon University and raised one of the largest rounds in embodied artificial intelligence.
letta.com · HQ: San Francisco, United States · AI Development Tools · AI Agents · 1-10 employees · Est. 2023 · Startup · Trust B · Hiring 4
HQ: San Francisco, United States · AI Development Tools · AI Agents · 1-10 employees · Est. 2023 · Startup · Trust B · Hiring 4
Letta is a company founded in 2023 by University of California, Berkeley researchers behind the MemGPT project on long-term memory for language models. Its open-source framework and cloud service give agents persistent memory that survives beyond a context window, with tooling to inspect and edit what an agent remembers. The project is widely used by developers building assistants that must retain state over months.
nudge.com · HQ: San Francisco, United States · Neurotech & Neuromodulation · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 19
HQ: San Francisco, United States · Neurotech & Neuromodulation · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 19
Our Mission, Technology, and Approach April 7, 2025 At Nudge, our mission is to develop the best technology for interfacing with the brain to improve people's lives.
browserbase.com · HQ: San Francisco, United States · Web Scraping & Proxy Networks · AI Development Tools · Developer Tools · 51-200 employees · Est. 2024 · Startup · Trust B · Hiring 9
HQ: San Francisco, United States · Web Scraping & Proxy Networks · AI Development Tools · Developer Tools · 51-200 employees · Est. 2024 · Startup · Trust B · Hiring 9
Browserbase runs headless web browsers in the cloud for developers who build AI agents, web automations and scrapers, so that they do not have to host and scale browser fleets themselves. Its platform hosts, manages and monitors browser sessions with consumption pricing, and the company also maintains Stagehand, an open-source AI web automation SDK, and Director, a tool that lets non-developers build automations from natural-language requests. The San Francisco company was founded by Paul Klein IV in 2024 and raised $67.5 million by its $40 million Series B led by Notable Capital in 2025.
eloquentai.co · HQ: San Francisco, United States · AI Agents · Information Security · Artificial Intelligence · 201-500 employees · Est. 2025 · Startup · Trust D · Hiring 13
HQ: San Francisco, United States · AI Agents · Information Security · Artificial Intelligence · 201-500 employees · Est. 2025 · Startup · Trust D · Hiring 13
InfoSec teams are right to be cautious about AI automation in regulated environments. Many AI systems prioritize speed over access control, explainability, and auditability, creating unacceptable risk.
runpulse.com · HQ: San Francisco, United States · Information Security · Computer Vision · Cybersecurity · Document AI · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 11, 1 new
HQ: San Francisco, United States · Information Security · Computer Vision · Cybersecurity · Document AI · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 11, 1 new
Pulse converts complex PDFs, scans and spreadsheets into verified structured data for enterprise workflows. It targets documents that defeat ordinary OCR, such as financial statements and dense tables. Customers use the output to feed downstream systems without manual keying.
hivemapper.com · HQ: San Francisco, United States · Geospatial Analytics · Navigation & Mapping · 11-50 employees · Est. 2015 · Trust B · Hiring 6
HQ: San Francisco, United States · Geospatial Analytics · Navigation & Mapping · 11-50 employees · Est. 2015 · Trust B · Hiring 6
Hivemapper builds a decentralised street-level map from footage collected by drivers using its dashcams. Contributors earn tokens for capturing fresh imagery, producing map coverage that updates faster than survey fleets. Logistics, navigation and mapping companies buy access to the resulting imagery and map data.
palladio.ai · HQ: San Francisco, United States · 1-10 employees · Startup · Hiring 1
HQ: San Francisco, United States · 1-10 employees · Startup · Hiring 1
Architects of Breakthroughs. Palladio AI is an AI platform designed to revolutionize product-led growth and help our customers become a more valued part of their users' everyday lives.
hebbia.com · HQ: New York, United States · Financial AI · Document AI · AI Search · 11-50 employees · Est. 2020 · Startup · Trust C · Hiring 23, 3 new
HQ: New York, United States · Financial AI · Document AI · AI Search · 11-50 employees · Est. 2020 · Startup · Trust C · Hiring 23, 3 new
Hebbia is an artificial intelligence company that develops Neural Matrix, an AI-powered enterprise search and intelligence platform designed for complex knowledge work. Founded in 2020, the platform enables professionals in finance, law, and corporate strategy to analyze massive volumes of unstructured documents, spreadsheets, and data instantly. By acting as an intelligent co-pilot for information retrieval and synthesis, it helps organizations make faster, data-driven decisions.
unitq.com · HQ: Burlingame, San Francisco, United States · Marketing Analytics & Attribution · Customer Support & Help Desk Software · 51-200 employees · Est. 2018 · Startup · Trust B · Hiring 6
HQ: Burlingame, San Francisco, United States · Marketing Analytics & Attribution · Customer Support & Help Desk Software · 51-200 employees · Est. 2018 · Startup · Trust B · Hiring 6
unitQ analyses user feedback across app stores, support tickets and social channels. Its machine learning groups reports into actionable quality issues. The company was founded by former Yahoo and Uber engineering leaders.
≈ $161k – $310k per year (Estimated) · Equity · Senior · 5+ years exp · In office (San Francisco, United States) · Bachelor's Degree · Full-Time · Senior
roam.lol · HQ: San Francisco, United States · Game Development · Generative 3D · AI Research Labs · Startup · Trust B · Hiring 3
HQ: San Francisco, United States · Game Development · Generative 3D · AI Research Labs · Startup · Trust B · Hiring 3
Roam is an applied AI lab building world models for interactive 3D environments, with a first focus on games. Its work spans perceiving, reasoning about and creating in 3D, with applications in simulation, design and play, and it hires research and platform engineers. The company is headquartered in San Francisco, California, United States.
tavrn.ai · HQ: San Francisco, United States · Legal AI · 51-200 employees · Startup · Trust B · Hiring 6
HQ: San Francisco, United States · Legal AI · 51-200 employees · Startup · Trust B · Hiring 6
Tavrn is a legal AI company that provides AI-powered demand letters, medical chronologies and medical record retrieval for plaintiff attorneys in personal injury, medical malpractice, workers compensation and disability practices. It hires AI product engineers, sales development staff and customer success managers. The company is headquartered in San Francisco, California, United States.
promptql.io · HQ: San Francisco, United States · AI Agents · Startup · Hiring 2
HQ: San Francisco, United States · AI Agents · Startup · Hiring 2
PromptQL is an enterprise AI platform that offers a multiplayer bot experience, where a bot is spun up for a piece of work and kept moving with the people who know the context. It focuses on the accuracy and reliability of AI in enterprise data environments and hires engineers and forward deployed analysts. The company is headquartered in San Francisco, California, United States.
