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.
uber.com · HQ: San Francisco, United States · Transportation & Logistics · Delivery · Ride Hailing · 5000+ employees · Est. 2009 · Trust A · Hiring 624, 104 new
HQ: San Francisco, United States · Transportation & Logistics · Delivery · Ride Hailing · 5000+ employees · Est. 2009 · Trust A · Hiring 624, 104 new
Uber is an American mobility and delivery company founded in San Francisco in 2009 that connects independent drivers and couriers with riders and customers through its apps. It operates ride hailing in thousands of cities, a food and grocery delivery business built on the same courier network, a freight brokerage matching shippers with carriers, and an advertising business that sells placement inside those apps. Listed on the New York Stock Exchange since 2019, the company reached sustained profitability in the mid 2020s and now partners with autonomous vehicle developers rather than building self-driving technology itself.
google.com · HQ: Mountain View, United States · Digital Storage · Internet Services · Digital Media · Marketing Analytics & Attribution · Streaming & OTT Platforms · Consumer Internet Groups · Foundation Models · Operating Systems · Cloud Platforms (IaaS & PaaS) · Video & Photo Sharing · Advertising · Search Engines · 11-50 employees · Est. 1998 · Trust B · Hiring 2602, 547 new
HQ: Mountain View, United States · Digital Storage · Internet Services · Digital Media · Marketing Analytics & Attribution · Streaming & OTT Platforms · Consumer Internet Groups · Foundation Models · Operating Systems · Cloud Platforms (IaaS & PaaS) · Video & Photo Sharing · Advertising · Search Engines · 11-50 employees · Est. 1998 · Trust B · Hiring 2602, 547 new
Google is an American technology company founded in 1998 by Larry Page and Sergey Brin and now the principal subsidiary of Alphabet, headquartered in Mountain View, California. It operates the world's dominant search engine and the advertising system built around it, along with YouTube, Android, Chrome, Gmail, Maps, Workspace and Google Cloud, reaching billions of users across nearly every internet-connected market. The company designs its own silicon in the Tensor Processing Unit line, develops the Gemini foundation models through Google DeepMind, and derives most of its revenue from advertising while cloud has become its fastest growing segment.
lila.ai · HQ: Cambridge, United States · Materials Science & Nanotechnology · Laboratory & Pharmaceutical Robotics · AI Research Labs · AI for Science · 201-500 employees · Est. 2023 · Startup · Trust A · Hiring 118, 18 new
HQ: Cambridge, United States · Materials Science & Nanotechnology · Laboratory & Pharmaceutical Robotics · AI Research Labs · AI for Science · 201-500 employees · Est. 2023 · Startup · Trust A · Hiring 118, 18 new
Lila Sciences is an American company launched publicly in 2025 out of Flagship Pioneering with the aim of building what it calls scientific superintelligence: artificial intelligence systems that generate hypotheses and then test them in the company's own automated laboratories. Its distinguishing feature is the closed loop between model and experiment, since most scientific machine learning is limited by the fact that the data it needs has never been generated. Headquartered in Cambridge, Massachusetts and funded at an unusually large scale for a company at this stage, it is working across life sciences and materials chemistry rather than committing to a single field.
stacksync.com · HQ: San Francisco, United States · Data Engineering & Migration Services · Integration & API Management · 51-200 employees · Est. 2023 · Startup · Hiring 3, 1 new
HQ: San Francisco, United States · Data Engineering & Migration Services · Integration & API Management · 51-200 employees · Est. 2023 · Startup · Hiring 3, 1 new
Build your integration layer with bidirectional, millisecond-latency sync across CRMs, ERPs, databases, warehouses, and 1,000+ SaaS apps. SOC 2, ISO 27001, HIPAA.
raindrop.agency · HQ: San Diego, United States · Advertising · Creative Agencies · 51-200 employees · Hiring 10, 1 new
HQ: San Diego, United States · Advertising · Creative Agencies · 51-200 employees · Hiring 10, 1 new
Raindrop is an independent creative and advertising agency that builds brand campaigns from social-first content to Super Bowl spots. It works on category-defining work for consumer brands with an emphasis on human connection. The company is headquartered in San Diego, California, United States.
bakertilly.com · HQ: Chicago, United States · Accounting & Bookkeeping Services · Management Consulting · Tax Advisory & Preparation · Audit & Assurance Firms · 5000+ employees · Est. 1931 · Trust B · Hiring 488, 35 new
HQ: Chicago, United States · Accounting & Bookkeeping Services · Management Consulting · Tax Advisory & Preparation · Audit & Assurance Firms · 5000+ employees · Est. 1931 · Trust B · Hiring 488, 35 new
Baker Tilly is a top-ten global advisory, tax, and assurance network providing accounting, consulting, and risk management solutions. With thousands of professionals across over 140 countries, the firm primarily serves middle-market businesses, large enterprises, and public sector clients. It combines scale with personalized, partner-led strategies to help organizations navigate financial complexities, operational growth, and strategic transformation.
$205k – $250k per year · Senior · 5+ years exp · In office (San Jose, Pasadena, Redwood City, Los Angeles, San Francisco, United States) · Bachelor's Degree · Full-Time · Senior
$250k – $400k per year · Head+ · 15+ years exp · In office (San Jose, Pasadena, Redwood City, Los Angeles, San Francisco, United States) · Bachelor's Degree · Full-Time · Architect
$250k – $400k per year · Head+ · 15+ years exp · In office (San Jose, Pasadena, Redwood City, Los Angeles, San Francisco, United States) · Bachelor's Degree · Full-Time · Architect
capitalone.com · HQ: McLean, United States · Leasing, Auto & Equipment Finance · Commercial & Retail Banks · Cards & Card Issuing · 5000+ employees · Est. 1994 · Trust B · Hiring 1503, 179 new
HQ: McLean, United States · Leasing, Auto & Equipment Finance · Commercial & Retail Banks · Cards & Card Issuing · 5000+ employees · Est. 1994 · Trust B · Hiring 1503, 179 new
Capital One is an American bank founded in 1994 that began as a credit card monoline built on statistical testing of offers and pricing, an approach it called information-based strategy. It is now one of the largest card issuers in the United States alongside a national direct bank, an auto lending business and a commercial bank, and it completed the acquisition of Discover in 2025, which gave it a payments network of its own rather than dependence on Visa and Mastercard. Headquartered in McLean, Virginia, it was also an early mover among large banks in migrating its entire technology estate to the public cloud.
$197k – $225k per year · Senior · 6+ years exp · In office (San Francisco, McLean, Cambridge, San Jose, New York, United States) · Bachelor's Degree · Full-Time · Senior
$263k – $300k per year · Senior · 5+ years exp · In office (McLean, San Francisco, Cambridge, San Jose, New York, United States) · Master's Degree · Full-Time · Senior
preferencemodel.com · HQ: San Francisco, United States · Reinforcement Learning · AI Training Data & Annotation · Startup · Hiring 6, 2 new
HQ: San Francisco, United States · Reinforcement Learning · AI Training Data & Annotation · Startup · Hiring 6, 2 new
Preference Model is building the next generation of training data to power the future of AI, creating reinforcement learning environments with diverse tasks and robust reward functions for automated ML research engineering. Its founding team previously worked on Anthropic's data team, and its job ads cover members of technical staff in ML capabilities, kernels and infrastructure. The company is headquartered in San Francisco, California, United States.
mercor.com · HQ: San Francisco, United States · Recruiting & Staffing · Freelance & Talent Marketplaces · AI Training Data & Annotation · 1001-5000 employees · Est. 2023 · Trust A · Hiring 206, 29 new
HQ: San Francisco, United States · Recruiting & Staffing · Freelance & Talent Marketplaces · AI Training Data & Annotation · 1001-5000 employees · Est. 2023 · Trust A · Hiring 206, 29 new
Mercor is an American company founded in 2023 by three Thiel Fellows that recruits and pays domain experts to produce the training and evaluation data frontier artificial intelligence labs need. Its business shifted quickly from general talent matching to expert data work: as models became competent at ordinary tasks, the scarce input became judgement from practising doctors, lawyers, bankers and engineers, and Mercor sources, vets and pays those people at very large scale. Headquartered in San Francisco and valued in the billions within two years of founding, it pays out enormous sums annually to a contributor network rather than employing them.
brain.co · HQ: San Francisco, United States · AI Consulting & Integration · AI Agents · Startup · Trust A · Hiring 44, 5 new
HQ: San Francisco, United States · AI Consulting & Integration · AI Agents · Startup · Trust A · Hiring 44, 5 new
Brain Co. is an American AI company that builds agent-native operating systems for large, regulated institutions, with each system built for a specific industry. Its systems run on Atlas, a proprietary platform that keeps customers in control and avoids lock-in to one model, and it hires AI platform, ML, product and security engineers. The company is headquartered in San Francisco, California, United States.
horizon3.ai · HQ: San Francisco, United States · Vulnerability Management · Cybersecurity AI · Penetration Testing · 1001-5000 employees · Est. 2019 · Trust B · Hiring 180, 40 new
HQ: San Francisco, United States · Vulnerability Management · Cybersecurity AI · Penetration Testing · 1001-5000 employees · Est. 2019 · Trust B · Hiring 180, 40 new
Horizon3.ai is a cybersecurity company that specializes in autonomous threat detection and proactive security validation. Its flagship platform, NodeZero, acts as an autonomous penetration testing solution that continuously discovers, tests, and verifies exploitable vulnerabilities across an organization's internal and external infrastructure. By simulating real-world attacker tactics, Horizon3.ai enables IT and security teams to fix critical security gaps before adversaries can exploit them.
together.ai · HQ: San Francisco, United States · Foundation Models · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 501-1000 employees · Est. 2022 · Startup · Trust A · Hiring 87, 5 new
HQ: San Francisco, United States · Foundation Models · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 501-1000 employees · Est. 2022 · Startup · Trust A · Hiring 87, 5 new
Together AI (Together Computer, Inc.) is a full-stack AI infrastructure and cloud platform headquartered in San Francisco, California. Founded in 2022 by prominent AI researchers and system engineers - including CEO Vipul Ved Prakash, CTO Ce Zhang, Chief Scientist Tri Dao (co-creator of FlashAttention), Chris Ré, and Percy Liang - the company operates as an "AI Native Cloud" designed to train, fine-tune, and deploy open-source generative AI models at scale with high performance and optimized unit economics.
6sense.com · HQ: San Francisco, United States · Sales Enablement · Lead Generation · Marketing Automation · Marketing & Sales AI · 1001-5000 employees · Est. 2013 · Trust B · Hiring 30, 9 new
HQ: San Francisco, United States · Sales Enablement · Lead Generation · Marketing Automation · Marketing & Sales AI · 1001-5000 employees · Est. 2013 · Trust B · Hiring 30, 9 new
6sense is a B2B software company headquartered in San Francisco whose revenue platform uses AI, intent data and predictive analytics to help marketing and sales teams identify in-market accounts, orchestrate account-based campaigns and run advertising. Founded in 2013, it serves B2B revenue teams and has offices in the United States plus engineering centres in Bengaluru and Pune. It hires full-stack, machine learning and security engineers, product managers for its agentic platform, product and content designers, advertising account executives, business development representatives, customer success managers and analytics staff.
figma.com · HQ: San Francisco, United States · Design & Prototyping Tools · Digital Design · 1001-5000 employees · Est. 2012 · NYSE: FIG · Trust A · Hiring 132, 14 new
HQ: San Francisco, United States · Design & Prototyping Tools · Digital Design · 1001-5000 employees · Est. 2012 · NYSE: FIG · Trust A · Hiring 132, 14 new
Figma is an American design software company founded in 2012 that built a full interface design tool inside the browser, which made real-time multiplayer editing the default rather than an add-on. Its products now cover interface design and prototyping, whiteboarding through FigJam, developer handoff, slide decks and a code generation product that turns designs into working front-end components. Headquartered in San Francisco, it listed on the New York Stock Exchange in 2025 after regulators blocked an attempted acquisition by Adobe, and it has become the default design tool at most software companies.
exlservice.com · HQ: New York, United States · AI Consulting & Integration · Analytics & BI Consulting · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1999 · Trust B · Hiring 552, 44 new
HQ: New York, United States · AI Consulting & Integration · Analytics & BI Consulting · Business Process Outsourcing (BPO) · 5000+ employees · Est. 1999 · Trust B · Hiring 552, 44 new
EXL, legally ExlService Holdings, is a data analytics, AI and digital operations company headquartered in New York that runs outsourced business processes and builds data and AI solutions for insurers, healthcare organisations, banks, media and retail companies. Founded in 1999 and listed on Nasdaq, it has more than 60,000 employees across six continents, with large delivery centers in Noida, Gurgaon, Pune, Bengaluru and Chennai and a newer AI hub in Dublin. It hires data scientists and data engineers, GenAI and MLOps engineers, analytics managers, solution consultants and client partners, plus talent acquisition, finance and medical coding staff.
logicalintelligence.com · HQ: San Francisco, United States · Code Intelligence · Industrial AI · Artificial Intelligence · Est. 2022 · Startup · Trust B · Hiring 4, 1 new
HQ: San Francisco, United States · Code Intelligence · Industrial AI · Artificial Intelligence · Est. 2022 · Startup · Trust B · Hiring 4, 1 new
Logical Intelligence engineers deterministic AI for critical systems. We deliver mathematically verified intelligence beyond LLMs for autonomy, finance, & defense. Explore Math AI & EBMs.
nimbleway.com · HQ: New York, United States · Data Providers & Datasets · Web Scraping & Proxy Networks · 51-200 employees · Est. 2021 · Hiring 24, 23 new
HQ: New York, United States · Data Providers & Datasets · Web Scraping & Proxy Networks · 51-200 employees · Est. 2021 · Hiring 24, 23 new
Nimble builds a web search agent platform that turns the live web into validated, structured data for enterprise AI systems and data teams. Its agents browse sites through real browsers and APIs, extract and verify the information, then clean, de-duplicate and deliver it as tables that connect to Databricks, Snowflake, AWS and Microsoft environments. Headquartered in New York with a development center in Israel, it serves customers such as LG, Deloitte, Uber, L'Oreal, Coca-Cola and Tripadvisor and raised a $47 million Series B led by Norwest in 2026, for $75 million in total.
