Security Engineer - Application Security (Senior)

Senior application security engineer role embedding security into the SDLC, including threat modeling, secure design reviews, code review, SAST/DAST, and software supply chain hardening. Acts as an internal security SME, builds automated tooling and guardrails, and partners across teams to make security a default. Requires 5+ years of product/application security experience with strong hands-on coding skills and comfort being an early hire at a startup.