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Backend Engineer roles

Backend Engineer Jobs at AI Startups

There are currently 238 open Backend Engineer jobs across 143 AI startups. 49% of these roles are at early-stage (Pre-Seed through Series B) companies. Every listing links straight to the company's official application page.

238Open roles
143Companies hiring
Sep 14, 2026Last updated
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Series A 56 (24%)Series B 43 (18%)Series C 34 (14%)Series E 32 (13%)Series D 17 (7%)Seed 16 (7%)Growth 16 (7%)Series G+ 11 (5%)Debt 7 (3%)Unknown 3 (1%)Series F 2 (1%)Pre-Seed 1 (0%)
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Open Backend Engineer Roles

RoleCompanyStageLocationPosted
Back-End Software Engineer InternAwardcoSeries BMultiple locationsSep 14, 2026
Staff Backend EngineerFomoSeries ANew York CitySep 14, 2026
Senior Backend Engineer, Defensive AgentHorizon3AISeries EUS RemoteSep 14, 2026
Senior Backend EngineerZeroDriftSeedMultiple locationsSep 14, 2026
Senior Backend EngineerQuoGrowthUnited States - RemoteSep 11, 2026
Staff Backend EngineerQuoGrowthUnited States - RemoteSep 11, 2026
Staff Backend Software EngineerEndor LabsSeries BMultiple locationsSep 11, 2026
Backend Software Engineer, ChatGPT ImageGenOpenAIGrowthSan FranciscoSep 11, 2026
Staff Backend Engineer, Data IngestionScribeSeries CRemoteSep 11, 2026
Backend Engineer, Control PlaneTailscaleSeries CMultiple locationsSep 11, 2026
Backend Engineer, Security PlatformVannevar LabsSeries BRemoteSep 11, 2026
Senior/Staff/Principal Backend Engineer, Platform & Data IngestionVerana HealthSeries EMultiple locationsSep 11, 2026
Senior Backend Engineer - InfrastructureAtomsGrowthMultiple locationsSep 10, 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 (Golang)Endor LabsSeries BMultiple locationsSep 10, 2026
Backend Engineer, Core APIsFingerprintSeries CRemoteSep 10, 2026
Sr. Backend Engineer, AI ProjectsPinwheelSeries BMultiple locationsSep 10, 2026
Sr. Backend Engineer, IntegrationsPinwheelSeries BMultiple locationsSep 10, 2026
Sr. Backend Engineer, ProductPinwheelSeries BMultiple locationsSep 10, 2026
Senior Backend EngineerbunchSeries BSão PauloSep 9, 2026
Senior Backend Engineer, Cloud PlatformPostmanSeries DMultiple locationsSep 9, 2026
Senior Back End Engineer (Integrations)AbacumSeries BRemote SpainSep 8, 2026
Senior Backend Engineer, Enterprise Billing PlatformLangChainSeries BSan Francisco, CASep 8, 2026
Staff Backend Engineer - Grafana App Platform | Canada | RemoteGrafana LabsSeries EMultiple locationsSep 8, 2026
Staff Backend Engineer - Grafana App Platform | US | RemoteGrafana LabsSeries EMultiple locationsSep 8, 2026
Senior Backend Engineer, Inference PlatformTogether AISeries CSan FranciscoSep 8, 2026
Senior Backend Engineer (m/f/d) - Agent SDKvoizeSeries AMultiple locationsSep 7, 2026
Senior Backend Engineer, Compliance PlatformSupioSeries BLocation unspecifiedSep 4, 2026
Senior Backend Engineer (Milan)Eight SleepSeries DMultiple locationsSep 4, 2026
Senior Backend Engineer, AgentsScribeSeries CRemoteSep 4, 2026
Backend Engineer — Data PipelineSunsetSeries ANew YorkSep 4, 2026
Senior/Staff Backend EngineerZanskarSeries CSalt Lake City, UtahSep 4, 2026
Staff Backend Software EngineerDatabricksSeries G+New YorkSep 3, 2026
Senior Backend EngineerPeec AISeries ABerlinSep 3, 2026
Senior Backend Engineer II - IPCBestowSeries DUS RemoteSep 2, 2026
Backend EngineerCambioSeries AMultiple locationsSep 2, 2026
Principal Backend EngineerFlagship PioneeringMultiple locationsSep 2, 2026
Backend Software Engineer - SimulationsRune TechnologiesSeries AMultiple locationsSep 2, 2026
Senior Software Backend Engineer, Market PricingPaveSeries CMultiple locationsSep 2, 2026
Staff Backend EngineerGradient LabsSeries ALondon OfficeSep 1, 2026
Backend Software Engineer - DistributionRune TechnologiesSeries ARosslyn, VASep 1, 2026
Senior Backend Software Engineer - Core Backend, Cloud Customer ExperienceCrusoeDebtMultiple locationsAug 31, 2026
Staff Backend Software EngineerAddeparSeries G+Multiple locationsAug 31, 2026
Staff Backend Software Engineer - Platform IntegrationAddeparSeries G+Multiple locationsAug 31, 2026
Staff Backend Engineer (Golang)Endor LabsSeries BMultiple locationsAug 31, 2026
Staff Backend Engineer - Databases Tempo | Canada | RemoteGrafana LabsSeries EMultiple locationsAug 31, 2026
Staff Backend Engineer - Databases Tempo | US | RemoteGrafana LabsSeries EMultiple locationsAug 31, 2026
Staff Backend Engineer, Data PlatformOsmoSeries BMultiple locationsAug 31, 2026
View all 238 Backend Engineer jobs
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FAQ

How many Backend Engineer jobs are open at AI startups?

There are currently 238 open Backend Engineer jobs across 143 AI startups on Fast AI Jobs.

What funding stages are hiring Backend Engineers?

49% of open Backend Engineer roles are at early-stage (Pre-Seed through Series B) startups, with the remainder at later-stage and growth companies.

How often is this Backend Engineer list updated?

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