Backend Developer jobs in San Francisco hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $276,456/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
sierra.ai · HQ: San Francisco, United States · LLM & Generative AI · AI Agents · Conversational AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 175, 9 new
HQ: San Francisco, United States · LLM & Generative AI · AI Agents · Conversational AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 175, 9 new
Sierra is an American artificial intelligence company founded in 2023 by Bret Taylor, the former co-chief executive of Salesforce and chairman of OpenAI, together with a former Google engineering leader. It builds conversational agents that handle customer service interactions end to end for large consumer businesses, resolving issues by acting on the company's own systems rather than only answering questions, and it charges per resolved outcome rather than per seat. Headquartered in San Francisco and privately held at a multi-billion dollar valuation, it works with retailers, telecommunications operators, financial services firms and healthcare providers.
rheaction.com · HQ: San Francisco, United States · Artificial Intelligence · Hiring 17, 3 new
HQ: San Francisco, United States · Artificial Intelligence · Hiring 17, 3 new
Rheaction offers startup recruiting and talent search, connecting ambitious companies with exceptional people through human-led, AI-powered talent discovery.
perfectvenue.com · HQ: San Francisco, United States · Event Management · 11-50 employees · Est. 2017 · Startup · Hiring 6
HQ: San Francisco, United States · Event Management · 11-50 employees · Est. 2017 · Startup · Hiring 6
Perfect Venues' event management software allows you to easily receive inquiries, send proposals, and get paid all in one place. Start your free trial today!
drata.com · HQ: San Diego, United States · AI Governance & Compliance · Security Compliance · 501-1000 employees · Est. 2020 · Startup · Trust A · Hiring 25
HQ: San Diego, United States · AI Governance & Compliance · Security Compliance · 501-1000 employees · Est. 2020 · Startup · Trust A · Hiring 25
Drata is an American security and compliance automation company founded in 2020 that continuously monitors a company's systems and collects evidence of its security controls. Its platform helps organisations prepare for and maintain audits under frameworks such as SOC 2, ISO 27001, HIPAA and GDPR, and manages vendor risk and trust centers. The company is headquartered in San Diego, California, United States.
stubhub.com · HQ: New York, United States · Marketplaces · Ticketing · 201-500 employees · Est. 2000 · Trust B · Hiring 28, 3 new
HQ: New York, United States · Marketplaces · Ticketing · 201-500 employees · Est. 2000 · Trust B · Hiring 28, 3 new
StubHub is a ticket resale marketplace headquartered in New York City and founded in 2000 by Eric Baker and Jeff Fluhr. The company runs a secondary market where fans buy and sell tickets to concerts, sports, and theatre, guaranteeing delivery and validity on completed orders. It was owned by eBay for a decade before Baker's viagogo bought it back in 2020, and now operates the StubHub and viagogo brands across more than ninety countries.
meshpay.com · HQ: San Francisco, United States · Blockchain & Crypto · Cryptocurrencies · Crypto Payments · 51-200 employees · Est. 2020 · Startup · Trust A · Hiring 22
HQ: San Francisco, United States · Blockchain & Crypto · Cryptocurrencies · Crypto Payments · 51-200 employees · Est. 2020 · Startup · Trust A · Hiring 22
Mesh builds connectivity infrastructure that lets applications link user accounts at exchanges and wallets for transfers and payments. Its network enables crypto payments funded directly from exchange balances without manual withdrawals. The company works with payment providers, brokerages and merchants accepting digital assets.
mongodb.com · HQ: New York, United States · Vector Search & RAG · Databases & DBMS · 1001-5000 employees · Est. 2007 · NASDAQ: MDB · Trust B · Hiring 340, 24 new
HQ: New York, United States · Vector Search & RAG · Databases & DBMS · 1001-5000 employees · Est. 2007 · NASDAQ: MDB · Trust B · Hiring 340, 24 new
MongoDB is an American database company founded in 2007 that built a document-oriented database storing records as flexible JSON-like structures rather than fixed relational tables. Its main commercial product is Atlas, a managed service running the database across the major public clouds with search, vector search, streaming and analytics layered on top, which now supplies the majority of company revenue. Headquartered in New York and listed on Nasdaq, it acquired the embedding model company Voyage AI in 2025 to strengthen its position in retrieval for artificial intelligence applications, and its database remains among the most widely used outside the relational world.
$87k – $124k per year · Equity · Intern · Hybrid (Austin, New York, San Francisco, United States) · Relocation · Bachelor's Degree · Internship · Intern
apple.com · HQ: Cupertino, United States · Smartwatches & Fitness Trackers · Operating Systems · Tablets · Laptops · Smartphones · 5000+ employees · Est. 1976 · Trust A · Hiring 2521, 292 new
HQ: Cupertino, United States · Smartwatches & Fitness Trackers · Operating Systems · Tablets · Laptops · Smartphones · 5000+ employees · Est. 1976 · Trust A · Hiring 2521, 292 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.
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 119, 4 new
HQ: Palo Alto, United States · Cybersecurity · Artificial Intelligence · Knowledge Graphs · AI Search · AI Agents · 201-500 employees · Est. 2019 · Startup · Trust B · Hiring 119, 4 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.
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 60, 12 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 60, 12 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 115, 5 new
HQ: San Francisco, United States · AI Agents · AI Development Tools · Code Intelligence · 201-500 employees · Est. 2022 · Trust A · Hiring 115, 5 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 – $251k 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 · 201-500 employees · Hiring 16, 2 new
HQ: San Francisco, United States · Consumer Health Apps · 201-500 employees · Hiring 16, 2 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.
twitch.tv · HQ: San Francisco, United States · Creator & Fan Platforms · Streaming & OTT Platforms · 501-1000 employees · Est. 2011 · Trust A · Hiring 56, 3 new
HQ: San Francisco, United States · Creator & Fan Platforms · Streaming & OTT Platforms · 501-1000 employees · Est. 2011 · Trust A · Hiring 56, 3 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.
waymo.com · HQ: Mountain View, United States · Ride Hailing · Smart Mobility · Autonomous Driving · 5000+ employees · Est. 2009 · Trust B · Hiring 361, 13 new
HQ: Mountain View, United States · Ride Hailing · Smart Mobility · Autonomous Driving · 5000+ employees · Est. 2009 · Trust B · Hiring 361, 13 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 303, 15 new
HQ: Los Angeles, United States · Mining & Heavy Industry Robotics · Industrial Automation · Industrial Robotics · 1001-5000 employees · Trust A · Hiring 303, 15 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 38
HQ: San Francisco, United States · Construction Management Software · 51-200 employees · Est. 2023 · Startup · Trust B · Hiring 38
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 · 1001-5000 employees · Est. 2021 · Startup · Trust B · Hiring 165, 3 new
HQ: San Francisco, United States · Databases & DBMS · Data Warehouses & Lakehouses · 1001-5000 employees · Est. 2021 · Startup · Trust B · Hiring 165, 3 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 · HQ: San Francisco, United States · Startup · Hiring 1
HQ: San Francisco, United States · Startup · Hiring 1
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.
earlywarning.com · HQ: Scottsdale, United States · Fraud Detection · Payment Processing & Gateways · RegTech, AML & Compliance · 1001-5000 employees · Est. 1990 · Trust B · Hiring 54, 4 new
HQ: Scottsdale, United States · Fraud Detection · Payment Processing & Gateways · RegTech, AML & Compliance · 1001-5000 employees · Est. 1990 · Trust B · Hiring 54, 4 new
Headquartered in Scottsdale, Arizona, Early Warning Services is a fintech company co-owned by seven of the largest American banks, including Bank of America, JPMorgan Chase, and Wells Fargo. The company develops identity, risk management, and fraud prevention solutions designed to secure transaction ecosystems across financial institutions. Additionally, it operates major consumer payment networks, most notably Zelle, enabling fast and secure digital money transfers.
