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Security Engineer · Seattle

Security Engineer Jobs in Seattle

There are currently 35 open Security Engineer jobs in Seattle across 16 AI startups. 11% of these roles are at Series A–B startups. Every listing links straight to the company's official application page.

35Open roles
16Companies hiring
Oct 6, 2026Last updated
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Funding-stage mix

Series G+ 15 (43%)Private Equity 5 (14%)Series D 3 (9%)Series B 3 (9%)Debt 2 (6%)Series C 2 (6%)Growth 2 (6%)Series E 1 (3%)Series A 1 (3%)Series F 1 (3%)
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Open Security Engineer Roles in Seattle

RoleCompanyStageLocationPosted
Senior Security Engineer, IdentityAndurilSeries G+Seattle, Washington, United StatesOct 6, 2026
Security Engineer, InfrastructureScale AISeries G+Multiple locationsOct 6, 2026
Security Engineer, Product SecurityScale AISeries G+Multiple locationsOct 6, 2026
Staff + Software Security Engineer, LabsAnthropicSeries G+Multiple locationsOct 5, 2026
Staff + Software Security Engineer, Secure FrameworksAnthropicSeries G+Multiple locationsOct 5, 2026
Staff Security Engineer, Risk EngineeringAnthropicSeries G+Multiple locationsSep 25, 2026
Senior Security Engineer (Infrastructure)HeadwaySeries DMultiple locationsSep 24, 2026
Senior Security Engineer - Enterprise SecurityLambdaDebtMultiple locationsSep 24, 2026
Staff security engineer, application securityWriterSeries CMultiple locationsSep 24, 2026
Security engineer, detection and responseWriterSeries CMultiple locationsSep 22, 2026
Security Engineer, Full StackHadrianSeries DMultiple locationsSep 17, 2026
Product Security Engineer, North SecurityCohereSeries EMultiple locationsSep 11, 2026
Security Engineer, Offensive SecurityAnthropicSeries G+Multiple locationsSep 10, 2026
Platform Security Engineering, Operating SystemsAnthropicSeries G+Multiple locationsAug 21, 2026
Platform Security Engineer, OpenBMCAnthropicSeries G+Multiple locationsAug 21, 2026
Security Engineer, Corporate SecurityAnthropicSeries G+Multiple locationsAug 21, 2026
Security Engineer, Detection & ResponseAnthropicSeries G+Multiple locationsAug 21, 2026
Senior Software Security EngineerAnthropicSeries G+Multiple locationsAug 21, 2026
Staff+ Application Security EngineerAnthropicSeries G+Multiple locationsAug 21, 2026
Staff+ Application Security Engineer - M&AAnthropicSeries G+Multiple locationsAug 21, 2026
Staff+ Software Security EngineerAnthropicSeries G+Multiple locationsAug 21, 2026
Browser Security EngineerKernelSeries AMultiple locationsAug 13, 2026
Physical Security Engineer, R&DFluidStackPrivate EquityMultiple locationsJul 17, 2026
Security Engineer, Corp ITFluidStackPrivate EquityMultiple locationsJul 17, 2026
Security Engineer, NetworkFluidStackPrivate EquityMultiple locationsJul 17, 2026
Security Engineer, Bare MetalFluidStackPrivate EquityMultiple locationsJul 17, 2026
Security EngineerLambdaDebtMultiple locationsJul 16, 2026
Security EngineerNooksSeries BMultiple locationsJun 30, 2026
Engineering Manager - Security EngineeringAircallSeries DSeattle OfficeApr 30, 2026
Security Engineer, InfrastructureFluidStackPrivate EquityMultiple locationsApr 2, 2026
Security EngineerBasetenSeries FMultiple locationsApr 1, 2026
Security EngineerAugerSeries BBellevue, United StatesMar 27, 2026
Principal Security Engineer, Infrastructure SecurityOpenAIGrowthMultiple locationsMar 25, 2026
Product Security EngineerOverland AISeries BMultiple locationsMar 16, 2026
Security Engineer, Detection and ResponseOpenAIGrowthMultiple locationsJan 28, 2026
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FAQ

How many Security Engineer jobs are open in Seattle?

There are currently 35 open Security Engineer jobs in Seattle across 16 AI startups on Fast AI Jobs.

What funding stages are hiring Security Engineers in Seattle?

11% of open Security Engineer roles in Seattle are at Series A–B startups, with the rest spread across seed and later-stage companies.

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.