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.
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rl-list.com • San Francisco • Incident Response • Cybersecurity • Artificial Intelligence • 11-50 employees • Est. 2025 • Likely startup • Hiring 31, 31 new
San Francisco • Incident Response • Cybersecurity • Artificial Intelligence • 11-50 employees • Est. 2025 • Likely startup • Hiring 31, 31 new
Compare 42 RL environment vendors by funding, team, customers, SOC 2 and focus area. A cited, first-pass procurement shortlist for 2026, built from public and vendor-shared data.
momentic.ai • HQ: San Francisco, United States • AI Agents • Software Testing & QA • 51-200 employees • Est. 2023 • Startup • Hiring 3, 2 new
HQ: San Francisco, United States • AI Agents • Software Testing & QA • 51-200 employees • Est. 2023 • Startup • Hiring 3, 2 new
Momentic lets teams write end-to-end tests for web and mobile applications in plain English rather than brittle selectors. Tests adapt when the interface changes, which removes most of the maintenance that kills UI suites. The product runs the same tests locally and in continuous integration.
anthropic.com • HQ: San Francisco, United States • Code Intelligence • AI Research Labs • AI Safety & Alignment • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2021 • Trust B • Hiring 675, 57 new
HQ: San Francisco, United States • Code Intelligence • AI Research Labs • AI Safety & Alignment • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2021 • Trust B • Hiring 675, 57 new
Anthropic is an American artificial intelligence safety and research company founded in 2021 by former OpenAI researchers, among them the siblings Dario and Daniela Amodei. It develops the Claude family of large language models and ships them through a consumer assistant, an enterprise developer platform and the Claude Code agentic coding tool, alongside open standards such as the Model Context Protocol. Incorporated as a public benefit corporation and headquartered in San Francisco, the company concentrates on interpretability, alignment and reliability research and counts Google and Amazon among its largest investors.
perplexity.ai • HQ: San Francisco, United States • Foundation Models • LLM & Generative AI • Search Engines • AI Search • 1001-5000 employees • Est. 2022 • Trust B • Hiring 131, 11 new
HQ: San Francisco, United States • Foundation Models • LLM & Generative AI • Search Engines • AI Search • 1001-5000 employees • Est. 2022 • Trust B • Hiring 131, 11 new
Perplexity AI is an American company that builds an answer engine combining live web search with large language models to return sourced, conversational responses instead of a list of links. Its products span a consumer assistant on web and mobile, the Comet browser, enterprise search over internal documents and the Sonar developer API that exposes the same grounded retrieval stack. Founded in 2022 in San Francisco by former researchers and engineers from OpenAI, Meta and Databricks, the company is backed by NVIDIA, IVP, New Enterprise Associates and SoftBank.
okta.com • HQ: San Francisco, United States • E-learning • Cybersecurity • Identity Management • 1001-5000 employees • Est. 2009 • Trust A • Hiring 372, 26 new
HQ: San Francisco, United States • E-learning • Cybersecurity • Identity Management • 1001-5000 employees • Est. 2009 • Trust A • Hiring 372, 26 new
Okta is an American identity company founded in 2009 that manages who can log in to what across an organisation's applications, and it built its position by being neutral between the cloud vendors rather than tied to any one of them. Its workforce identity products handle single sign-on, multi-factor authentication and lifecycle management for employees, while Auth0, acquired in 2021, provides the same capability for developers building customer-facing applications. Headquartered in San Francisco and listed on Nasdaq, it suffered a serious support-system breach in 2023 that put its own security practices under scrutiny in a category built entirely on trust.
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 85, 4 new
HQ: San Francisco, United States • Foundation Models • Cloud Platforms (IaaS & PaaS) • AI Compute & Inference • 501-1000 employees • Est. 2022 • Startup • Trust A • Hiring 85, 4 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.
uber.com • HQ: San Francisco, United States • Delivery • Ride Hailing • 5000+ employees • Est. 2009 • Trust A • Hiring 584, 93 new
HQ: San Francisco, United States • Delivery • Ride Hailing • 5000+ employees • Est. 2009 • Trust A • Hiring 584, 93 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.
oura.com • HQ: Oulu, Finland • Consumer Health Apps • Smartwatches & Fitness Trackers • 501-1000 employees • Est. 2013 • Trust A • Hiring 75, 13 new
HQ: Oulu, Finland • Consumer Health Apps • Smartwatches & Fitness Trackers • 501-1000 employees • Est. 2013 • Trust A • Hiring 75, 13 new
Oura is a health technology company that makes the Oura Ring, a smart ring worn on the finger that tracks sleep, heart rate, heart rate variability, body temperature trends and activity. The ring is paired with a mobile app and a paid membership that turns the readings into sleep, readiness and activity scores, and the company also runs a large US operation from San Francisco. Oura is headquartered in Oulu, Finland.
discord.com • HQ: San Francisco, United States • Social Networks • Online Forums & Community Platforms • Messaging Apps • 201-500 employees • Est. 2015 • Startup • Trust B • Hiring 45, 2 new
HQ: San Francisco, United States • Social Networks • Online Forums & Community Platforms • Messaging Apps • 201-500 employees • Est. 2015 • Startup • Trust B • Hiring 45, 2 new
Discord is a voice, video, and text communication platform that enables users to create and join topic-based public and private communities known as "servers." Originally launched in 2015 to support multiplayer video gaming communities, the platform has expanded into a general-purpose hub for interest groups, educational communities, remote teams, and content creators. Through persistent text channels, real-time voice chat rooms, direct messaging, screen sharing, and third-party bot integrations, Discord provides scalable communication tools for millions of active communities worldwide.
capgemini.com • HQ: Paris, France • Management Consulting • Engineering Services • Systems Integrators • IT Consulting & Digital Transformation • 5000+ employees • Est. 1967 • IT services • Trust B • Hiring 4544, 380 new
HQ: Paris, France • Management Consulting • Engineering Services • Systems Integrators • IT Consulting & Digital Transformation • 5000+ employees • Est. 1967 • IT services • Trust B • Hiring 4544, 380 new
Capgemini is a French information technology services and consulting group founded in Grenoble in 1967 by Serge Kampf, and one of the largest IT service providers in the world. It designs, builds and runs systems for large enterprises and governments across some fifty countries, with a delivery workforce concentrated in India and a European client base heavier than most of its competitors. The group is organised into Capgemini Invent for strategy and design, Capgemini Engineering for research and development services acquired with Altran, and Sogeti for local technology services, and it has reoriented its portfolio around cloud migration, data platforms and generative AI.
radicalnumerics.ai • HQ: San Francisco, United States • Foundation Models • AI Research Labs • 201-500 employees • Est. 2025 • Startup • Trust A • Hiring 16, 1 new
HQ: San Francisco, United States • Foundation Models • AI Research Labs • 201-500 employees • Est. 2025 • Startup • Trust A • Hiring 16, 1 new
Radical Numerics is a research laboratory working on recursive self improvement of machine learning systems, where models help design the next generation of architectures. Its early releases included open diffusion language models trained through automated architecture search rather than hand designed recipes. The company was founded by researchers from leading industrial laboratories and publishes its methods alongside model weights; its research is released with open weights so that others can reproduce the search process.
rheaction.com • HQ: San Francisco, United States • Artificial Intelligence • Hiring 15, 15 new
HQ: San Francisco, United States • Artificial Intelligence • Hiring 15, 15 new
Rheaction offers startup recruiting and talent search, connecting ambitious companies with exceptional people through human-led, AI-powered talent discovery.
higgsfield.ai • HQ: San Francisco, United States • Generative Audio & Music • Generative Image • Generative Video • 501-1000 employees • Est. 2023 • Startup • Trust B • Hiring 84, 7 new
HQ: San Francisco, United States • Generative Audio & Music • Generative Image • Generative Video • 501-1000 employees • Est. 2023 • Startup • Trust B • Hiring 84, 7 new
Higgsfield is an artificial intelligence company that builds a creative suite for generating and editing images, video and voice from text prompts or reference material. Its products cover video generation with camera control, image models, upscaling and editing, voice content and an agent that automates creative workflows on web and mobile for marketers, studios and independent creators. Founded in 2023 and run from San Francisco, the company keeps a large product and engineering team in Almaty, Kazakhstan, where it hires AI engineers, data scientists, designers and content staff.
docusign.com • HQ: San Francisco, United States • Custom Software Development • Digital Signature • Est. 2003 • Hiring 9, 1 new
HQ: San Francisco, United States • Custom Software Development • Digital Signature • Est. 2003 • Hiring 9, 1 new
DocuSign operates a cloud-based electronic signature platform that helps small and medium businesses, enterprises, and individuals collect information, automate data workflows, and sign on various devices.
salesforce.com • HQ: San Francisco, United States • AI Agents • Team Communication & Collaboration • Marketing Automation • Customer Support & Help Desk Software • BI & Dashboard Software • Marketing & Sales AI • CRM Software • 5000+ employees • Est. 1999 • Trust B • Hiring 1448, 164 new
HQ: San Francisco, United States • AI Agents • Team Communication & Collaboration • Marketing Automation • Customer Support & Help Desk Software • BI & Dashboard Software • Marketing & Sales AI • CRM Software • 5000+ employees • Est. 1999 • Trust B • Hiring 1448, 164 new
Salesforce is an American enterprise software company founded in 1999 that pioneered delivering business applications over the internet rather than as installed software. Its Customer 360 platform brings sales, service, marketing, commerce and analytics onto shared customer data, extended by the Slack collaboration suite, the Tableau analytics business and the MuleSoft integration layer. Headquartered in San Francisco, the company has moved its product strategy toward autonomous agents through Agentforce and the Data Cloud, and it remains the largest customer relationship management vendor in the world by revenue share.
google.com • HQ: Mountain View, United States • 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 2699, 612 new
HQ: Mountain View, United States • 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 2699, 612 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.
origin.tech • HQ: Boston, United States • Robotic Software & Control Systems • Construction Robotics • 51-200 employees • Est. 2018 • Startup • Trust A • Hiring 33, 33 new
HQ: Boston, United States • Robotic Software & Control Systems • Construction Robotics • 51-200 employees • Est. 2018 • Startup • Trust A • Hiring 33, 33 new
Origin, previously known as 10xConstruction, is building general-purpose autonomous robots for US construction sites to tackle rising costs, safety risks and labor shortages. Its modular, multi-trade platform combines purpose-built hardware with real-time site intelligence, and the company hires robotics apprentices and engineers, mostly in Bengaluru. The company is headquartered in Boston, Massachusetts, United States.
mercor.com • HQ: San Francisco, United States • Recruiting & Staffing • Freelance & Talent Marketplaces • AI Training Data & Annotation • 1001-5000 employees • Est. 2023 • Trust B • Hiring 86, 5 new
HQ: San Francisco, United States • Recruiting & Staffing • Freelance & Talent Marketplaces • AI Training Data & Annotation • 1001-5000 employees • Est. 2023 • Trust B • Hiring 86, 5 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.
glean.com • HQ: Palo Alto, United States • Cybersecurity • Artificial Intelligence • Knowledge Graphs • AI Search • AI Agents • 201-500 employees • Est. 2019 • Startup • Trust B • Hiring 121, 12 new
HQ: Palo Alto, United States • Cybersecurity • Artificial Intelligence • Knowledge Graphs • AI Search • AI Agents • 201-500 employees • Est. 2019 • Startup • Trust B • Hiring 121, 12 new
Glean is an American company founded in 2019 by former Google search engineers who observed that enterprise search had barely improved in two decades while the volume of internal documents had exploded. It indexes a company's applications, documents, messages and tickets, respects the permissions of each source system, and answers questions across all of them, having extended from search into assistants and agents that act on the same connected data. Headquartered in Palo Alto and valued in the billions, it sells to large enterprises where employees can no longer find what the organisation already knows.
