Backend Developer jobs in San Francisco hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $272,233/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
apple.com • HQ: Cupertino, United States • Smartwatches & Fitness Trackers • Operating Systems • Tablets • Laptops • Smartphones • 5000+ employees • Est. 1976 • Trust A • Hiring 2692, 332 new
HQ: Cupertino, United States • Smartwatches & Fitness Trackers • Operating Systems • Tablets • Laptops • Smartphones • 5000+ employees • Est. 1976 • Trust A • Hiring 2692, 332 new
Apple is an American multinational technology company founded in 1976 by Steve Jobs, Steve Wozniak and Ronald Wayne, and headquartered in Cupertino, California. It designs and sells consumer hardware including the iPhone, Mac, iPad, Apple Watch, AirPods and Vision Pro, together with the operating systems and silicon that run them. A growing services division built around the App Store, iCloud, Apple Music, Apple TV+ and Apple Pay now contributes a large share of profit, making Apple one of the most valuable companies in the world.
openai.com • HQ: San Francisco, United States • Artificial Intelligence • Code Intelligence • Generative Video • Conversational AI • AI Research Labs • Foundation Models • LLM & Generative AI • 5000+ employees • Est. 2015 • Trust B • Hiring 776, 52 new
HQ: San Francisco, United States • Artificial Intelligence • Code Intelligence • Generative Video • Conversational AI • AI Research Labs • Foundation Models • LLM & Generative AI • 5000+ employees • Est. 2015 • Trust B • Hiring 776, 52 new
OpenAI is an American artificial intelligence research and deployment company founded in 2015 with the mission of ensuring that artificial general intelligence benefits all of humanity. It develops the GPT family of large language models and turns them into consumer and developer products, including the ChatGPT assistant, the Sora video model, the Codex coding agent and a commercial API used by millions of developers. Structured as a public benefit corporation controlled by a non-profit foundation, the company is backed by Microsoft and SoftBank and operates from San Francisco.
glean.com • HQ: Palo Alto, United States • Cybersecurity • Artificial Intelligence • Knowledge Graphs • AI Search • AI Agents • 201-500 employees • Est. 2019 • Startup • Trust A • Hiring 120, 11 new
HQ: Palo Alto, United States • Cybersecurity • Artificial Intelligence • Knowledge Graphs • AI Search • AI Agents • 201-500 employees • Est. 2019 • Startup • Trust A • Hiring 120, 11 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.
brightdata.com • HQ: Netanya, Israel • Internet Services • Artificial Intelligence • Web Scraping & Proxy Networks • Data Providers & Datasets • AI Training Data & Annotation • 201-500 employees • Est. 2014 • Hiring 16, 2 new
HQ: Netanya, Israel • Internet Services • Artificial Intelligence • Web Scraping & Proxy Networks • Data Providers & Datasets • AI Training Data & Annotation • 201-500 employees • Est. 2014 • Hiring 16, 2 new
Bright Data is an Israeli company founded in 2014 that operates one of the largest public web data collection networks. Its proxy infrastructure, scraping interfaces and prebuilt datasets are widely used to assemble the training and retrieval corpora behind machine learning systems. The company has defended the collection of public web data in several court cases and serves e-commerce, finance and AI research customers.
perplexity.ai • HQ: San Francisco, United States • Foundation Models • LLM & Generative AI • Search Engines • AI Search • 1001-5000 employees • Est. 2022 • Trust B • Hiring 126, 6 new
HQ: San Francisco, United States • Foundation Models • LLM & Generative AI • Search Engines • AI Search • 1001-5000 employees • Est. 2022 • Trust B • Hiring 126, 6 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.
$220k – $405k per year • Staff+ • 4+ years exp • In office (San Francisco, Seattle, New York, United States, London, United Kingdom, Toronto, Canada) • Full-Time • Staff
lilly.com • HQ: Indianapolis, United States • Oncology Therapeutics • Cardiometabolic Therapeutics • Prescription Drugs • 5000+ employees • Est. 1876 • Trust B • Hiring 516, 110 new
HQ: Indianapolis, United States • Oncology Therapeutics • Cardiometabolic Therapeutics • Prescription Drugs • 5000+ employees • Est. 1876 • Trust B • Hiring 516, 110 new
Eli Lilly and Company, known as Lilly, is an American pharmaceutical company headquartered in Indianapolis, Indiana, that discovers, develops and manufactures medicines for diabetes, obesity, cancer, immunology and neuroscience. Founded in 1876 by pharmacist Eli Lilly, it employs more than 50,000 people, sells its products in about 125 countries and runs manufacturing and research sites in places such as Limerick, Cork, Alcobendas, Concord and Kobe. Its openings span pharmaceutical sales territory managers, formulation operators, software engineers and AI architects, finance and marketing staff, and a large programme of interns and apprentices.
exa.ai • HQ: San Francisco, United States • Vector Search & RAG • Web Scraping & Proxy Networks • AI Search • Search Engines • 501-1000 employees • Est. 2021 • Startup • Trust B • Hiring 54, 5 new
HQ: San Francisco, United States • Vector Search & RAG • Web Scraping & Proxy Networks • AI Search • Search Engines • 501-1000 employees • Est. 2021 • Startup • Trust B • Hiring 54, 5 new
Exa builds a web search engine designed for AI applications and agents rather than for human readers, sold to developers and enterprises through APIs. It trained its own embedding-based search models and runs its own crawl that tracks more than 500 billion URLs, exposed through Search, Contents, Agent and Monitors APIs and Websets, a high-compute search product for lists of companies and people. Founded in 2021 in San Francisco under the name Metaphor, it serves more than 5,000 companies including Cursor, Cognition and HubSpot and raised a $250 million Series C led by Andreessen Horowitz in 2026.
cursor.com • HQ: San Francisco, United States • AI Agents • AI Development Tools • Code Intelligence • 201-500 employees • Est. 2022 • Trust A • Hiring 123, 7 new
HQ: San Francisco, United States • AI Agents • AI Development Tools • Code Intelligence • 201-500 employees • Est. 2022 • Trust A • Hiring 123, 7 new
Anysphere builds Cursor, a code editor designed around AI assistance, where the model reads an entire repository and edits across files rather than completing single lines in isolation. Its agent mode plans and carries out multi-step changes, runs commands and reviews its own diffs, which made the editor one of the fastest-growing developer tools of the current AI wave and a standard part of many engineering workflows. The company describes itself as an applied research lab and trains its own models alongside the product.
≈ $122k – $248k per year (Estimated) • Junior • 2+ years exp • In office (San Francisco, New York, United States) • Bachelor's Degree • Full-Time • Junior
develophealth.com • HQ: San Francisco, United States • Consumer Health Apps • Hiring 13, 4 new
HQ: San Francisco, United States • Consumer Health Apps • Hiring 13, 4 new
Empower Your Health Journey. At Develop Health, we provide tailored health coaching that empowers you to enhance your mental, physical, emotional, and spiritual well-being through simple lifestyle strategies.
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 1432, 171 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 1432, 171 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.
twitch.tv • HQ: San Francisco, United States • Creator & Fan Platforms • Streaming & OTT Platforms • 501-1000 employees • Est. 2011 • Trust B • Hiring 54, 15 new
HQ: San Francisco, United States • Creator & Fan Platforms • Streaming & OTT Platforms • 501-1000 employees • Est. 2011 • Trust B • Hiring 54, 15 new
Headquartered in San Francisco, California, United States, Twitch (operated by Twitch Interactive, Inc., a subsidiary of Amazon) is a global live-streaming platform and interactive digital media enterprise. The company provides real-time video broadcasting and community engagement tools, specializing in esports competitions, video game streaming, creative content, music broadcasts, and "Just Chatting" interactive talk channels.
databricks.com • HQ: San Francisco, United States • MLOps • Query Engines & Big Data Processing • Data Warehouses & Lakehouses • 5000+ employees • Est. 2013 • Trust B • Hiring 856, 41 new
HQ: San Francisco, United States • MLOps • Query Engines & Big Data Processing • Data Warehouses & Lakehouses • 5000+ employees • Est. 2013 • Trust B • Hiring 856, 41 new
Databricks is an American software company founded in 2013 by the original creators of Apache Spark, Delta Lake and MLflow at the University of California, Berkeley. Its data intelligence platform unifies data engineering, warehousing, governance, analytics and machine learning on a lakehouse architecture that stores open table formats in a customer's own cloud object storage. Headquartered in San Francisco and available on AWS, Azure and Google Cloud, the platform is used by tens of thousands of organisations to build pipelines, dashboards and production AI applications.
springhealth.com • HQ: New York, United States • Medical AI • Digital Mental Health • 5000+ employees • Est. 2016 • Hiring 57, 6 new
HQ: New York, United States • Medical AI • Digital Mental Health • 5000+ employees • Est. 2016 • Hiring 57, 6 new
Spring Health is a mental health technology company headquartered in New York City and founded in 2016. The company provides an artificial intelligence-driven platform that offers personalized mental healthcare services including clinical therapy, coaching, medication management, and self-guided wellness tools. It operates globally by partnering with employers and health plans to provide comprehensive behavioral health benefits to over 170 million covered individuals.
snapchat.com • HQ: Los Angeles, United States • Messaging Apps • Social Networks • 1001-5000 employees • Est. 2012 • Hiring 155, 11 new
HQ: Los Angeles, United States • Messaging Apps • Social Networks • 1001-5000 employees • Est. 2012 • Hiring 155, 11 new
Snapchat is a visual messaging app operated by Snap Inc, a technology company built around the camera. Users chat, send Snaps, view Stories and try Lenses on mobile or desktop, and Snap also runs the subsidiary Specs Inc and hires software engineers for creator backend systems in New York. The company is headquartered in Venice, Los Angeles, California, United States.
$209k – $313k per year • Equity • Senior • 6+ years exp • In office (Santa Monica, San Francisco, Palo Alto, New York, Bellevue, United States) • Bachelor's Degree • Full-Time • Senior
$157k – $235k per year • Equity • Junior • 2+ years exp • In office (Santa Monica, San Francisco, Palo Alto, New York, Bellevue, United States) • Bachelor's Degree • Full-Time • Junior
baseten.co • HQ: San Francisco, United States • MLOps • AI Compute & Inference • 1001-5000 employees • Est. 2019 • Trust B • Hiring 104, 6 new
HQ: San Francisco, United States • MLOps • AI Compute & Inference • 1001-5000 employees • Est. 2019 • Trust B • Hiring 104, 6 new
Baseten is an American company founded in 2019 that runs machine learning models in production for companies that would rather not operate GPU infrastructure themselves. Its position is inference rather than training: it handles model packaging, autoscaling, cold start latency and multi-cloud capacity, which are the unglamorous problems that determine whether a model-powered product is fast and affordable enough to ship. Headquartered in San Francisco and backed at a multi-billion dollar valuation, it serves companies deploying open and custom models, and it competes with both the hyperscalers and the model providers' own hosted endpoints.
$165k – $330k per year • Middle • 4+ years exp • Hybrid (San Francisco, New York, Seattle, United States, Toronto, Montreal, Canada) • Full-Time • Middle
waymo.com • HQ: Mountain View, United States • Ride Hailing • Smart Mobility • Autonomous Driving • 5000+ employees • Est. 2009 • Trust B • Hiring 354, 26 new
HQ: Mountain View, United States • Ride Hailing • Smart Mobility • Autonomous Driving • 5000+ employees • Est. 2009 • Trust B • Hiring 354, 26 new
Waymo is an American autonomous driving company that began as the Google self-driving car project in 2009 and became a standalone Alphabet subsidiary in 2016. It operates the largest fully driverless commercial ride-hailing service in the world through the Waymo One app, carrying paying passengers with no human in the vehicle across Phoenix, San Francisco, Los Angeles, Austin and an expanding list of cities. Headquartered in Mountain View, California, the company builds its own sensor suite and the Waymo Driver software stack, integrates them into vehicles from partners such as Jaguar, Zeekr and Hyundai, and also develops autonomous trucking technology.
atoms.co • HQ: Los Angeles, United States • Mining & Heavy Industry Robotics • Industrial Automation • Industrial Robotics • 1001-5000 employees • Trust A • Hiring 305, 34 new
HQ: Los Angeles, United States • Mining & Heavy Industry Robotics • Industrial Automation • Industrial Robotics • 1001-5000 employees • Trust A • Hiring 305, 34 new
Atoms is an industrial robotics company that rebranded from City Storage Systems, the parent of CloudKitchens. It builds task-specific robots and automation infrastructure across food, mining and transport, and its openings are concentrated in San Francisco, Los Angeles, Pittsburgh and New York. The company is based in the United States.
bobyard.com • HQ: San Francisco, United States • Construction Management Software • 51-200 employees • Est. 2023 • Startup • Trust B • Hiring 44, 4 new
HQ: San Francisco, United States • Construction Management Software • 51-200 employees • Est. 2023 • Startup • Trust B • Hiring 44, 4 new
Bobyard is a construction technology startup based in San Francisco that builds AI takeoff and estimating software, using computer vision and language models trained on construction drawings to measure and count materials for bids. Backed by Primary, Pear and 8VC, it serves landscaping, electrical, plumbing, mechanical, finishes and paving contractors, with an in-house research team building trade-specific models and a new sales push in the UK. It hires account executives, sales development representatives, sales engineers, forward deployed and frontend engineers, product managers and designers, data analysts, recruiters and operations managers.
clickhouse.com • HQ: San Francisco, United States • Databases & DBMS • Data Warehouses & Lakehouses • 501-1000 employees • Est. 2021 • Startup • Trust B • Hiring 163, 15 new
HQ: San Francisco, United States • Databases & DBMS • Data Warehouses & Lakehouses • 501-1000 employees • Est. 2021 • Startup • Trust B • Hiring 163, 15 new
ClickHouse is the company behind the open source column-oriented database of the same name, which was originally built inside Yandex for web analytics and released publicly in 2016 before the company was incorporated in 2021. The database is designed for analytical queries over very large tables, using columnar storage, vectorised execution and aggressive compression to answer aggregations across billions of rows in under a second, which has made it a common choice for observability, product analytics and real-time reporting. The company sells a managed cloud service on top of the open source project and operates as a remote-first organisation.
textla.com • San Francisco • Startup • Hiring 1, 1 new
San Francisco • Startup • Hiring 1, 1 new
Textla is an SMS messaging platform that empowers businesses to reach their customers via text messages. We're the simplest and most affordable SMS and messaging tool in the world.
