Machine Learning Engineer jobs in San Francisco hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $294,048/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
bluenote.ai · HQ: San Francisco, United States · Testing, Inspection & Certification · Custom Software Development · 51-200 employees · Est. 2018 · Startup · Hiring 2
HQ: San Francisco, United States · Testing, Inspection & Certification · Custom Software Development · 51-200 employees · Est. 2018 · Startup · Hiring 2
Bluenote. Accelerate regulatory submissions by 50-75% with advanced AI for life sciences. Trusted by the industry's largest pharma, medical devices, diagnostics, CROs and CDMOs.
coderabbit.ai · HQ: San Francisco, United States · AI Development Tools · Code Intelligence · 501-1000 employees · Est. 2023 · Startup · Trust A · Hiring 45, 2 new
HQ: San Francisco, United States · AI Development Tools · Code Intelligence · 501-1000 employees · Est. 2023 · Startup · Trust A · Hiring 45, 2 new
CodeRabbit is a San Francisco-based software company that builds an AI code review platform, reviewing pull requests, IDE changes and CLI commits for code written by people and AI agents. Founded in 2023, it reports more than 17,000 customers, 150,000 open-source projects and over 2 million reviews a week, and raised a $143M Series C at a $1.5B valuation. It hires account executives, field engineers, sales development representatives, customer success managers, product managers, designers and platform engineers, with hubs in San Francisco, Boston, Bengaluru and London.
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 53, 3 new
HQ: Pittsburgh, United States · Foundation Models · Robotic Software & Control Systems · Robotics AI · 1001-5000 employees · Est. 2023 · Trust B · Hiring 53, 3 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 10
HQ: San Francisco, United States · Information Security · Computer Vision · Cybersecurity · Document AI · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 10
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 22, 2 new
HQ: New York, United States · Financial AI · Document AI · AI Search · 11-50 employees · Est. 2020 · Startup · Trust C · Hiring 22, 2 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
