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Series D+ · Security Engineer

Series D+ AI Startup Security Engineer Jobs

There are currently 148 open Security Engineer jobs across 73 Series D+ AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.

148Open roles
73Companies hiring
Nov 2, 2026Last updated
01

Open Security Engineer Roles at Series D+ AI Startups

RoleCompanyStageLocationPosted
AI Security EngineerAlpacaSeries EMultiple locationsNov 2, 2026
IT Security EngineerAlpacaSeries EMultiple locationsNov 2, 2026
AI Security EngineerAlphaSenseSeries G+Multiple locationsNov 2, 2026
Chief Information Security OfficerAndurilSeries G+Multiple locationsNov 2, 2026
IT Security Engineer, SpaceAndurilSeries G+Multiple locationsNov 2, 2026
Staff + Software Security Engineer, Secure FrameworksAnthropicSeries G+Multiple locationsNov 2, 2026
Senior Security EngineerGarner HealthSeries ERemoteNov 2, 2026
Senior Security Engineer | InfoSecWellhubSeries FMultiple locationsNov 2, 2026
Senior Security EngineerCohereSeries EMultiple locationsOct 31, 2026
Staff Security EngineerEight SleepSeries DUS RemoteOct 31, 2026
Senior Cloud Security EngineerAlphaSenseSeries G+Multiple locationsOct 30, 2026
Senior Product Security EngineerAlphaSenseSeries G+US RemoteOct 30, 2026
Senior Product Security EngineerAlphaSenseSeries G+Remote (Canada)Oct 30, 2026
Senior Product Security EngineerAlphaSenseSeries G+Remote (United Kingdom)Oct 30, 2026
Senior Product Security EngineerAlphaSenseSeries G+Remote (Ireland)Oct 30, 2026
Staff / Senior Data Center Security EngineerAnthropicSeries G+Multiple locationsOct 30, 2026
Senior Security Engineer, AIJustworksSeries EMultiple locationsOct 30, 2026
Staff Security EngineerQuinceSeries EMultiple locationsOct 30, 2026
Product Security EngineerVercelSeries FMultiple locationsOct 30, 2026
Security Engineer, CloudVercelSeries FUS RemoteOct 30, 2026
Platform Security EngineerGleanSeries G+US RemoteOct 29, 2026
Senior Data Security EngineerSkydioSeries FSan Mateo, California, United StatesOct 29, 2026
Staff Application Security EngineerTemporalSeries EMultiple locationsOct 29, 2026
Senior Product Security EngineerCyeraSeries G+Tel AvivOct 28, 2026
Staff Product Security EngineerHarveySeries G+Multiple locationsOct 28, 2026
Principal Embedded Systems Security EngineerTrue AnomalySeries DMultiple locationsOct 28, 2026
Senior Security Engineer | AppSecWellhubSeries FMultiple locationsOct 28, 2026
Senior Security Engineer | CloudSecWellhubSeries FMultiple locationsOct 28, 2026
Autonomous Systems Security EngineerAnthropicSeries G+Multiple locationsOct 27, 2026
Principal Infrastructure Security EngineerRidgelineSeries EMultiple locationsOct 27, 2026
Staff Product Security EngineerAirwallexSeries G+US - San FranciscoOct 26, 2026
Staff + Software Security Engineer, LabsAnthropicSeries G+Multiple locationsOct 26, 2026
Product Security EngineerChaos IndustriesSeries DMultiple locationsOct 24, 2026
Senior Product Security EngineerChaos IndustriesSeries DMultiple locationsOct 24, 2026
Staff AI Security EngineerAddeparSeries G+US RemoteOct 23, 2026
Staff Infrastructure Security EngineerHarveySeries G+San FranciscoOct 23, 2026
Staff Infrastructure Security EngineerHarveySeries G+New YorkOct 23, 2026
Principal Security Engineer, OperationsK2 SpaceSeries DMultiple locationsOct 23, 2026
Senior Security Engineer, OperationsK2 SpaceSeries DMultiple locationsOct 23, 2026
Security Engineer, InfrastructureScale AISeries G+Multiple locationsOct 22, 2026
Security Engineer, Product SecurityScale AISeries G+Multiple locationsOct 22, 2026
Application Security Engineer IIAbnormal SecuritySeries EUS RemoteOct 20, 2026
Director of Security EngineeringAbnormal SecuritySeries EUS RemoteOct 20, 2026
Senior Security EngineerAbnormal SecuritySeries EUS RemoteOct 20, 2026
Staff Software Security EngineerAnthropicSeries G+London, UKOct 20, 2026
Application Security EngineerGleanSeries G+US RemoteOct 20, 2026
CISOGleanSeries G+Mountain View, CAOct 20, 2026
Supply Chain Security EngineerGleanSeries G+Bangalore, IndiaOct 20, 2026
CISOEonSeries DUS - RemoteOct 16, 2026
Senior Security Engineer IIStravaSeries G+Strava SFOct 15, 2026
View all Security Engineer jobs
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FAQ

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

There are currently 148 open Security Engineer jobs across 73 Series D+ 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 D+ 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.