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.
inkeep.com · HQ: San Francisco, United States · AI Agents · Customer Support & Help Desk Software · 201-500 employees · Est. 2022 · Startup · Trust B · Hiring 3
HQ: San Francisco, United States · AI Agents · Customer Support & Help Desk Software · 201-500 employees · Est. 2022 · Startup · Trust B · Hiring 3
Inkeep builds AI agents for customer support and operations that answer from a company's own documentation and product data. Engineering and support teams configure the agents together, with visibility into what each answer was based on. It is widely used by developer tool companies for docs search and ticket deflection.
espa.ai · HQ: San Francisco, United States · AI Agents · Office & Productivity Software · Likely startup · Hiring 2
HQ: San Francisco, United States · AI Agents · Office & Productivity Software · Likely startup · Hiring 2
Espa Labs is an early-stage AI startup building an AI-native productivity assistant that handles email, calendars, contacts and tasks. It is backed by venture capital firms including Village Global, Neo and SV Angel, and hires a founding software engineer and engineering interns. The company is headquartered in San Francisco, California, United States.
firetiger.com · HQ: San Francisco, United States · AI Agents · Observability & APM · 1-10 employees · Est. 2024 · Trust B · Hiring 4
HQ: San Francisco, United States · AI Agents · Observability & APM · 1-10 employees · Est. 2024 · Trust B · Hiring 4
Firetiger attaches a monitor to every pull request and watches the rollout across staging, canary, and production, returning one verdict per deploy: verified, regression detected, or inconclusive.
magicpatterns.com · HQ: San Francisco, United States · AI Agents · Design & Prototyping Tools · 51-200 employees · Est. 2023 · Startup · Trust B · Hiring 7
HQ: San Francisco, United States · AI Agents · Design & Prototyping Tools · 51-200 employees · Est. 2023 · Startup · Trust B · Hiring 7
AI design tool to turn prompts into production-ready UI. Use your design system, generate prototypes fast, and collaborate.
airapps.co · HQ: San Francisco, United States · Consumer & Utility Software · Office & Productivity Software · 1001-5000 employees · Est. 2017 · Trust A · Hiring 424
HQ: San Francisco, United States · Consumer & Utility Software · Office & Productivity Software · 1001-5000 employees · Est. 2017 · Trust A · Hiring 424
Founded in 2017, Air Apps is a prominent mobile software developer specializing in AI-driven utility, productivity, and personal management applications. Headquartered in San Francisco, California, United States, the enterprise operates a remote-first global team that designs and manages a broad portfolio of digital tools. Through its bundled subscription model and suite of user-friendly mobile solutions, it provides millions of consumers worldwide with streamlined options for daily organization, translation, and task automation.
giga.ai · HQ: San Francisco, United States · Speech & Audio AI · Artificial Intelligence · Contact Center Software · Conversational AI · AI Agents · 51-200 employees · Est. 2023 · Startup · Trust D · Hiring 32, 1 new
HQ: San Francisco, United States · Speech & Audio AI · Artificial Intelligence · Contact Center Software · Conversational AI · AI Agents · 51-200 employees · Est. 2023 · Startup · Trust D · Hiring 32, 1 new
Giga, formerly GigaML, is an artificial intelligence company that builds voice and chat agents for enterprise customer support. Its agents handle large volumes of phone and messaging conversations for consumer and logistics businesses, integrating with existing support tools and escalating to human staff when needed, and it is backed by venture investors. The company is headquartered in San Francisco, California, United States.
alleviatehealth.care · HQ: Fayetteville, United States · AI Agents · Clinical Trial Software · 1-10 employees · Est. 1987 · Trust B · Hiring 7
HQ: Fayetteville, United States · AI Agents · Clinical Trial Software · 1-10 employees · Est. 1987 · Trust B · Hiring 7
The AI Recruiter for Clinical Research.. Human-in-the-loop AI workflows to help your team to make more powerful connections with participants while saving thousands of hours.
moonlakeai.com · HQ: San Francisco, United States · Generative 3D · Foundation Models · 201-500 employees · Est. 2025 · Startup · Trust B · Hiring 8
HQ: San Francisco, United States · Generative 3D · Foundation Models · 201-500 employees · Est. 2025 · Startup · Trust B · Hiring 8
Moonlake AI is a frontier AI lab building interactive world models and simulation infrastructure for physical AI, embodied AI, robotics and gaming. Its systems generate, simulate and reason over 3D environments, and the company hires members of technical staff for model training, simulation and product engineering. The company is headquartered in San Francisco, California, United States.
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.
gamut.so · HQ: San Francisco, United States · AI Agents · 1001-5000 employees · Est. 2016 · Trust B · Hiring 8
HQ: San Francisco, United States · AI Agents · 1001-5000 employees · Est. 2016 · Trust B · Hiring 8
Build and run personal AI agents that work autonomously in the background — handling research, scheduling, and busywork so you can focus on what matters.
merge.dev · HQ: San Francisco, United States · Integration & API Management · 501-1000 employees · Est. 2020 · Startup · Trust A · Hiring 14, 1 new
HQ: San Francisco, United States · Integration & API Management · 501-1000 employees · Est. 2020 · Startup · Trust A · Hiring 14, 1 new
Merge offers a single API that normalises integrations with hundreds of HR, accounting, CRM and ticketing systems. A software company builds once against Merge instead of maintaining separate connectors for each customer's stack. The product includes syncing, field mapping and monitoring of the underlying integrations.
nudge.com · HQ: San Francisco, United States · Neurotech & Neuromodulation · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 19, 1 new
HQ: San Francisco, United States · Neurotech & Neuromodulation · 201-500 employees · Est. 2024 · Startup · Trust D · Hiring 19, 1 new
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.
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.
tolans.com · HQ: San Francisco, United States · Conversational AI · AI Agents · 51-200 employees · Startup · Trust B · Hiring 7
HQ: San Francisco, United States · Conversational AI · AI Agents · 51-200 employees · Startup · Trust B · Hiring 7
Tolan is building personal AI that helps people think, reflect and take action in their real lives, delivered as a friendly AI guide in an iOS app. Its team previously founded Even, which was acquired in 2022, and the company hires iOS, backend, gameplay and agent engineers and designers. The company is headquartered in San Francisco, California, United States.
padlet.com · HQ: San Francisco, United States · EdTech Platforms · Team Communication & Collaboration · Est. 2008 · Trust C · Hiring 17, 3 new
HQ: San Francisco, United States · EdTech Platforms · Team Communication & Collaboration · Est. 2008 · Trust C · Hiring 17, 3 new
Padlet is a digital canvas where people post notes, images, links and video onto a shared board. Teachers use it heavily for classroom collaboration, but it is also used for planning and brainstorming at work. The product is known for a simple interface that needs no training.
