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Security Engineer Jobs at AI Startups

There are currently 300 open Security Engineer jobs across 170 AI startups. 34% of these roles are at early-stage (Pre-Seed through Series B) companies. Every listing links straight to the company's official application page.

300Open roles
170Companies hiring
Sep 14, 2026Last updated
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Series C 50 (17%)Series B 49 (16%)Series A 47 (16%)Series G+ 45 (15%)Series D 41 (14%)Series E 21 (7%)Debt 16 (5%)Series F 10 (3%)Growth 8 (3%)Private Equity 6 (2%)Seed 5 (2%)Unknown 1 (0%)Strategic Investment 1 (0%)
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Open Security Engineer Roles

RoleCompanyStageLocationPosted
Lead Security Engineer, GRCAndurilSeries G+Multiple locationsSep 14, 2026
Lead Security Engineer, GRCAndurilSeries G+Costa Mesa, California, United StatesSep 14, 2026
Lead Security Engineer, GRCAndurilSeries G+Boston, Massachusetts, United StatesSep 14, 2026
Lead Security Engineer, GRCAndurilSeries G+Washington, District of Columbia, United StatesSep 14, 2026
Senior Product Security EngineerAndurilSeries G+Multiple locationsSep 14, 2026
Security EngineerPostHogSeries EMultiple locationsSep 14, 2026
Staff Security Engineer, Security Incident Response1PasswordSeries CRemote (United States | Canada)Sep 14, 2026
Member of Technical Staff, Security EngineeringInception LabsSeedSan Mateo, United StatesSep 11, 2026
Product Security Engineer, North SecurityCohereSeries DCanadaSep 11, 2026
Corporate Security EngineerGrammarlyDebtHub - BerlinSep 11, 2026
Information Security Engineer, DLP & Insider RiskMoonPayDebtBengaluru, KarnatakaSep 11, 2026
Senior/Staff Security EngineerPomelo CareSeries CMultiple locationsSep 11, 2026
Security EngineerConduct AISeries ALondon, UKSep 10, 2026
Security Engineer, Offensive SecurityAnthropicSeries G+Multiple locationsSep 10, 2026
Staff Security Software Engineer, Agentic Security EngineeringDatabricksSeries G+Remote (California)Sep 10, 2026
Security Engineer – DevSecOps and Security ArchitectPhysicsXSeries CMultiple locationsSep 10, 2026
Infrastructure Security Engineer, Public SectorScale AISeries G+Multiple locationsSep 10, 2026
Systems Security Engineer, ProgramsAndurilSeries G+Multiple locationsSep 9, 2026
Security Engineer, Threat IntelligenceFluidStackSeries AMultiple locationsSep 9, 2026
Security EngineerMergeSeries BMultiple locationsSep 9, 2026
Security Engineer, Corporate SecurityFlexportSeries EMultiple locationsSep 9, 2026
Senior Security Engineer, Detection & ResponseFlexportSeries EMultiple locationsSep 9, 2026
Network & Security EngineerGruveSeries AMultiple locationsSep 9, 2026
Principal Offensive Security EngineerPostmanSeries DMultiple locationsSep 9, 2026
Principal Embedded Systems Security EngineerTrue AnomalySeries DMultiple locationsSep 9, 2026
Staff Embedded Systems Security EngineerTrue AnomalySeries DMultiple locationsSep 9, 2026
Senior Network Security EngineerValar AtomicsSeries BMultiple locationsSep 9, 2026
Senior Software Security EngineerValar AtomicsSeries BMultiple locationsSep 9, 2026
Senior Security Engineer, FederalArmadaSeries BBellevue Office, Sunset Corporate CampusSep 8, 2026
Security Engineer, Corporate SecurityNotionPrivate EquityDublin, IrelandSep 8, 2026
Enterprise Security EngineerSendBirdSeries CMultiple locationsSep 8, 2026
Staff Application Security EngineerThe Nuclear CompanySeries AMultiple locationsSep 8, 2026
Senior Infrastructure Security Engineer-L3 (Palo Alto & NGFW)GruveSeries AMultiple locationsSep 7, 2026
Senior Security EngineerPrimerSeries CMultiple locationsSep 7, 2026
Security Engineer III - Security OperationsPrimerSeries CMultiple locationsSep 7, 2026
Lead Security Engineer8090 FactorySeries ARedwood CitySep 5, 2026
Staff Security EngineerLiveKitSeries CMultiple locationsSep 4, 2026
Security Engineer, Application SecurityMercorSeries CMultiple locationsSep 4, 2026
Security engineer, detection and response (UK)WriterSeries CLondon, UKSep 4, 2026
Security engineer, detection and responseWriterSeries CMultiple locationsSep 4, 2026
Security engineer, application security (UK)WriterSeries CLondon, UKSep 4, 2026
Security engineer, application securityWriterSeries CMultiple locationsSep 4, 2026
Senior Security EngineerVAST DataSeries FIsrael - Tel AvivSep 3, 2026
Security EngineerCyeraSeries G+St. LouisSep 3, 2026
Senior Security EngineerCohereSeries DMultiple locationsSep 3, 2026
Manager, Security EngineeringCohereSeries DMultiple locationsSep 3, 2026
Staff Software Security EngineerAnthropicSeries G+London, UKSep 3, 2026
Cloud Security EngineerHexSeries CMultiple locationsSep 3, 2026
Application Security EngineerRetoolSeries CSan Francisco, United StatesSep 2, 2026
Senior Security EngineerAgoraSeedUnited States - RemoteSep 2, 2026
View all 300 Security Engineer jobs
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FAQ

How many Security Engineer jobs are open at AI startups?

There are currently 300 open Security Engineer jobs across 170 AI startups on Fast AI Jobs.

What funding stages are hiring Security Engineers?

34% of open Security 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 Security Engineer list updated?

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