Application Security & Vulnerability Validation Engineer

We are seeking a seasoned Application Security & Vulnerability Validation Engineer to serve as the operational and technical bridge between automated/AI-driven security scanning and remediation systems and product engineering teams. In this role, you will streamline service threat modeling, eliminate scanner triage noise, build minimal proofs-of-concept (PoCs) to validate exploitability, perform rigorous quality assurance on AI/agent-generated security patches, and partner with software engineers to drive confirmed vulnerabilities to verified production closure.

Construct minimal local test environments, dependency mocks, and reproduction harnesses to validate reported security findings Distinguish true, exploitable vulnerabilities from scanner false positives and attach clear, reproducible evidence to issue tickets Supervise, review, and validate code patches generated by automated and AI/agentic remediation systems before they are routed to product code owners Inspect code diffs for logic flaws, hallucinations, off-by-one errors, memory safety issues, and unintended functional regressions Execute unit, integration, and differential tests to confirm both fix efficacy and build stability (targeting a ≥90% patch acceptance rate by code owners without major revision) Review, filter, and prioritize incoming findings from automated static (SAST) and dynamic/endpoint scanning tools within a 24–48 hour turnaround window Classify vulnerability severity using standar