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Series A AI Startup Security Engineer Jobs

There are currently 39 open Security Engineer jobs across 30 Series A AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.

39Open roles
30Companies hiring
Jun 16, 2026Last updated
01

Open Security Engineer Roles at Series A AI Startups

RoleCompanyStageLocationPosted
Staff Application Security EngineerThe Nuclear CompanySeries AWashington, DCJun 16, 2026
Staff Cloud Security EngineerThe Nuclear CompanySeries AWashingto, DCJun 16, 2026
Senior Infrastructure Security Engineer-L3 (Palo Alto & Cloud Operations)GruveSeries AMumbai, Maharashtra, IndiaJun 15, 2026
Co-Op, Lab IT/OT Security EngineerLila SciencesSeries ACambridge, MA USAJun 11, 2026
Senior Offensive Security Engineer (AppSec)WebAISeries AAustin, TXJun 11, 2026
Network Security EngineerGruveSeries AEdison, New Jersey, United StatesJun 10, 2026
MTS - Security EngineeringThe Interaction Company of CaliforniaSeries APalo Alto, CaliforniaJun 10, 2026
Staff Product Security EngineerVastSeries ALong Beach, California, United StatesJun 10, 2026
Product Security EngineerStackAISeries ASF Office - 171 2nd, 4th floorJun 9, 2026
Senior Product Security Engineer7AISeries ABoston, MAJun 9, 2026
Senior Infrastructure Security Engineer-L3 (Palo Alto & NGFW)GruveSeries AMumbai, Maharashtra, IndiaJun 5, 2026
Security Engineer, PlatformResendSeries AAmericasJun 3, 2026
Security Engineer, PlatformResendSeries AEuropeJun 3, 2026
Product Security EngineerDevRevSeries ABangalore, IndiaJun 1, 2026
Security Engineering LeadMeckaSeries ANew YorkJun 1, 2026
Security EngineerGeneral MatterSeries ALos Angeles, CAMay 29, 2026
Principal Security Engineer - AI7AISeries ABoston, MAMay 28, 2026
Senior Security Engineer - AI7AISeries ABoston, MAMay 27, 2026
Senior Security EngineerDaylight SecuritySeries ASingaporeMay 25, 2026
Senior Security EngineerDaylight SecuritySeries ATel AvivMay 25, 2026
Security EngineerStackOneSeries ALondonMay 20, 2026
Senior Security EngineerngrokSeries AUnited StatesMay 19, 2026
Security EngineerFirefliesSeries AVancouver, CanadaMay 6, 2026
Platform Security EngineerApplied ComputeSeries ASan FranciscoMay 4, 2026
Security Engineer, Anti-AbuseLMArenaSeries ABay AreaApr 22, 2026
Security EngineerAugerSeries ABellevue, United StatesMar 27, 2026
Information Systems Security EngineerRune TechnologiesSeries ARosslyn, VAMar 23, 2026
Senior Crypto Security EngineerLightsparkSeries ALos Angeles HQMar 17, 2026
Lead Security EngineerRemoFirstSeries ABulgariaMar 12, 2026
Senior Security EngineerDaylight SecuritySeries AUnited States (Remote)Mar 1, 2026
Senior Security EngineerGigaMLSeries ASan FranciscoFeb 20, 2026
Security EngineerEudiaSeries APalo Alto, CAJan 27, 2026
Founding Security EngineerRicursive IntelligenceSeries APalo AltoJan 19, 2026
Security EngineerTempoSeries AUSA (Remote)Jan 12, 2026
Founding Product Security EngineerLMArenaSeries ABay AreaDec 18, 2025
Senior Platform Security EngineerSuperDialSeries ABurlingame, CADec 5, 2025
Founding Platform & Security EngineerGradient LabsSeries ALondon OfficeNov 27, 2025
Security EngineerMethod SecuritySeries ANew York City OfficeAug 26, 2025
IT and Security EngineerFlexion RoboticsSeries AZürich, Zurich, Switzerland-
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FAQ

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

There are currently 39 open Security Engineer jobs across 30 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.