All Backend Engineer jobs
Backend Engineer · San Francisco

Backend Engineer Jobs in San Francisco

There are currently 64 open Backend Engineer jobs in San Francisco & Bay Area across 49 AI startups. 39% of these roles are at Series A–B startups. Every listing links straight to the company's official application page.

64Open roles
49Companies hiring
Sep 11, 2026Last updated
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Funding-stage mix

Series B 13 (20%)Series A 12 (19%)Series C 11 (17%)Growth 8 (13%)Seed 7 (11%)Series D 6 (9%)Series G+ 3 (5%)Series E 1 (2%)Debt 1 (2%)Series F 1 (2%)Unknown 1 (2%)
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Open Backend Engineer Roles in San Francisco

RoleCompanyStageLocationPosted
Staff Backend Software EngineerEndor LabsSeries BMultiple locationsSep 11, 2026
Backend Software Engineer, ChatGPT ImageGenOpenAIGrowthSan FranciscoSep 11, 2026
Senior/Staff/Principal Backend Engineer, Platform & Data IngestionVerana HealthSeries EMultiple locationsSep 11, 2026
Staff Backend EngineerAtomsGrowthMultiple locationsSep 10, 2026
Senior Backend EngineerMintlifySeries BSan FranciscoSep 10, 2026
Backend Software Engineer (Mid-Senior)Endor LabsSeries BMultiple locationsSep 10, 2026
Senior Backend Engineer, Cloud PlatformPostmanSeries DMultiple locationsSep 9, 2026
Senior Backend Engineer, Enterprise Billing PlatformLangChainSeries BSan Francisco, CASep 8, 2026
Senior Backend Engineer, Inference PlatformTogether AISeries CSan FranciscoSep 8, 2026
Backend EngineerCambioSeries AMultiple locationsSep 2, 2026
Senior Software Backend Engineer, Market PricingPaveSeries CMultiple locationsSep 2, 2026
Senior Backend Software Engineer - Core Backend, Cloud Customer ExperienceCrusoeDebtMultiple locationsAug 31, 2026
Senior Backend EngineerNourishSeries CMultiple locationsAug 31, 2026
Staff Backend Engineer - Data Platform- San FranciscoHausSeries BSan Francisco, CAAug 24, 2026
Senior Backend Engineer - ProductMercurySeries DMultiple locationsAug 21, 2026
Backend Software EngineerChaos IndustriesSeries DMultiple locationsAug 20, 2026
Backend Engineer, Core ProductScribeSeries CSan FranciscoAug 20, 2026
Senior Backend Engineer, Ambient AICommureSeries FMultiple locationsAug 19, 2026
Staff Backend Software Engineer- (AI Platform)DatabricksSeries G+Multiple locationsAug 18, 2026
Backend EngineerMintlifySeries BSan FranciscoAug 14, 2026
Senior Backend EngineerSlopeSeries CSan FranciscoAug 14, 2026
Senior Backend EngineerWaystation AISeedRedwood City, CAAug 12, 2026
Backend Software Engineer - Codex for FinanceOpenAIGrowthSan FranciscoAug 11, 2026
Senior Backend Software EngineerChaos IndustriesSeries DMultiple locationsAug 6, 2026
Senior Backend EngineerYou.comSeries CMultiple locationsAug 6, 2026
Principal Backend Software EngineerEndor LabsSeries BMultiple locationsAug 4, 2026
Senior Backend Engineer (Full-Stack Capable)OrkesSeries BMultiple locationsAug 3, 2026
Senior Backend Engineer, ProductOrion SleepSeedSan FranciscoJul 31, 2026
Staff Backend Engineer, Internal ProductsTwelve LabsSeries BSan FranciscoJul 28, 2026
Backend EngineerLMArenaSeries ABay AreaJul 16, 2026
Senior Backend Engineer, Core ProductScribeSeries CSan FranciscoJul 2, 2026
Senior Backend Engineer, Agentic AIAirwallexSeries G+US - San FranciscoJun 17, 2026
Backend EngineerSamaya AISeries BMultiple locationsJun 4, 2026
Senior Backend EngineerHedraSeries ASan FranciscoMay 21, 2026
Backend Software Engineer, Applied FoundationsOpenAIGrowthMultiple locationsMay 7, 2026
Backend EngineerNew GenerationSeedSan FranciscoApr 29, 2026
Backend EngineerTownSeries AMultiple locationsApr 23, 2026
Backend EngineerBuildForeverSeedSan Francisco, CAApr 10, 2026
Senior/Staff Backend EngineerLighthouse-Multiple locationsApr 9, 2026
Senior Backend EngineerFlexSeedSan Jose, CAMar 24, 2026
Backend EngineerCylakeSeedSunnyvaleMar 5, 2026
Senior Backend Software EngineerSentraSeries BMultiple locationsMar 2, 2026
Team Lead Backend Engineer (Core Applications)HockeyStackGrowthSan FranciscoFeb 24, 2026
Backend Engineer, Data CentersMeterSeries CSan FranciscoFeb 22, 2026
Staff Backend Engineer, Agentic AIAirwallexSeries G+US - San FranciscoFeb 19, 2026
Senior Backend Engineer (Infrastructure)SphereSeries ASan Francisco HQFeb 19, 2026
Backend Engineer - InfrastructureHeyGenSeries AMultiple locationsFeb 11, 2026
Senior Backend Software Engineer, Cloud & InfrastructureTaaraSeedSunnyvale, CAFeb 5, 2026
Backend Software Engineer, GTM InnovationOpenAIGrowthSan FranciscoFeb 4, 2026
Backend EngineerDispatchSeries CMultiple locationsFeb 3, 2026
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FAQ

How many Backend Engineer jobs are open in San Francisco?

There are currently 64 open Backend Engineer jobs in San Francisco across 49 AI startups on Fast AI Jobs.

What funding stages are hiring Backend Engineers in San Francisco?

39% of open Backend Engineer roles in San Francisco are at Series A–B startups, with the rest spread across seed and later-stage companies.

How often is this list updated?

Listings are refreshed daily from official company career pages and deduplicated by posting. Every link points to the original application page.