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Series A · Security Engineer

Series A AI Startup Security Engineer Jobs

There are currently 45 open Security Engineer jobs across 35 Series A AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.

45Open roles
35Companies hiring
Nov 1, 2026Last updated
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Open Security Engineer Roles at Series A AI Startups

RoleCompanyStageLocationPosted
Senior Application Security EngineerChamelioSeries ATel AvivNov 1, 2026
Spring 2027 Security Engineer InternThe Nuclear CompanySeries AWashington, D.C.Oct 28, 2026
Senior Security EngineerRootlySeries AToronto, CanadaOct 27, 2026
Lead Security EngineerNuvoSeries ASan Francisco, United StatesOct 26, 2026
Founding Security EngineerArtificial Intelligence Underwriting Company (AIUC)Series ASan FranciscoOct 26, 2026
Security EngineerCoinflow LabsSeries AMultiple locationsOct 26, 2026
Infrastructure Security Engineer-L2 (Palo Alto & NGFW)GruveSeries AMultiple locationsOct 26, 2026
Senior Infrastructure Security Engineer-L3 (Palo Alto & NGFW)GruveSeries AMultiple locationsOct 26, 2026
Senior/Staff Security EngineerngrokSeries AMultiple locationsOct 26, 2026
Lead Security Engineer, Internal and ITArtemisSeries ANew York CityOct 23, 2026
Security EngineerTraversalSeries ANew YorkOct 20, 2026
Security EngineerKodexSeries AUS-RemoteOct 19, 2026
Senior/Staff Security EngineerSandbarSeries ANew York CityOct 17, 2026
Security Engineer, Detection & ResponseBrain Co.Series AMultiple locationsOct 14, 2026
Security EngineerLatent HealthSeries AMultiple locationsOct 14, 2026
Offensive Security EngineerArtemisSeries ANew York CityOct 11, 2026
AI Security Engineer Co-Op Intern, Winter 2027Brain Co.Series ASan Francisco Bay AreaOct 9, 2026
Security EngineerFuseSeries ASan Leandro, CaliforniaOct 8, 2026
Cloud Infrastructure Security Engineer (Systems/Kernel)RunPodSeries AUS RemoteOct 5, 2026
AI Security Engineer, 2027 New GradBrain Co.Series ASan Francisco Bay AreaOct 1, 2026
Data Security EngineerGeneral IntuitionSeries ANew York CitySep 29, 2026
Lead Security EngineerSalientSeries ASF HeadquartersSep 26, 2026
(Senior) Infrastructure & Security EngineerDunaSeries AMultiple locationsSep 18, 2026
Senior Security EngineerCascaSeries ASan FranciscoSep 16, 2026
AI Security Engineer Intern (Summer 2027)Brain Co.Series ASan Francisco Bay AreaSep 12, 2026
Security EngineerConduct AISeries ALondon, UKSep 10, 2026
Lead Security Engineer8090 FactorySeries ARedwood CitySep 5, 2026
Security Engineer - Application Security (Senior)Cogent SecuritySeries AUS RemoteSep 1, 2026
Product Security EngineerTempoSeries AUSA (Remote)Aug 31, 2026
Security Engineering LeadDovetailSeries ASydneyAug 24, 2026
Corporate IT and Security EngineerRowspaceSeries ASan FranciscoAug 24, 2026
Security EngineerFirefliesSeries AVancouver, CanadaAug 21, 2026
Browser Security EngineerKernelSeries AMultiple locationsAug 13, 2026
Senior Security EngineerTranslucent AISeries ANew York CityAug 13, 2026
DevOps & Security EngineerStudyFetchSeries ABeverly Hills, CAJul 6, 2026
Security EngineerSimularSeries ASingaporeJun 18, 2026
Security Engineer, PlatformResendSeries AAmericasJun 3, 2026
Security Engineer, PlatformResendSeries AEuropeJun 3, 2026
Principal Security Engineer - AI7AISeries ABoston, MAMay 28, 2026
Senior Security Engineer - AI7AISeries ABoston, MAMay 27, 2026
Security EngineerStackOneSeries ALondonMay 20, 2026
Security EngineerCoinflow LabsSeries AChicagoMay 14, 2026
AI Application Security EngineerBrain Co.Series ASan Francisco Bay AreaMay 7, 2026
Security EngineerGigaMLSeries ASan FranciscoFeb 20, 2026
Security EngineerTempoSeries AUSA (Remote)Jan 12, 2026
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FAQ

How many Security Engineer jobs are open at Series A AI startups?

There are currently 45 open Security Engineer jobs across 35 Series A AI startups on Fast AI Jobs.

Why filter Security Engineer jobs by funding stage?

Funding stage signals company size, runway, and equity upside. Filtering to Series A startups narrows the list to Security Engineer roles at companies at a comparable point in their growth.

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.