CareerPlanSign in

Senior Security Engineer, AWS Security Verification & Validation Team

United Kingdom💼 Full-time🗓 2026-09-17 → 2026-09-25

Core

Senior technical leader owning complex security testing engagements end-to-end, applying human judgment to resolve high-consequence risks where automation is insufficient.

Role type

Senior Security Engineer (Adversarial Testing & Validation)

Builds

Harnesses for agentic AI, reusable security mechanisms, detection rules, and documented methodologies for AWS services.

Domain

Cloud Security / Adversarial Testing / AI Security

Deliverable

production ML models | product features | dashboards & analysis

Required skills

Penetration testing, AI-augmented source code review, attack path tracing, risk hypothesis validation, stakeholder communication, test strategy definition, peer review, mentorship, automation framework design

Preferred skills

Experience with agentic systems, expertise in microservice architectures, ability to work in ambiguity

Technologies

AWS proprietary software, agentic AI systems, fuzzers, integration security tests

Responsibilities

Own security for a portfolio of testing engagements and lead complex engagements; Perform penetration testing and AI-augmented source code review; Take risk hypotheses to documented conclusions via proof-of-concept or evidence; Define approaches for engagements lacking security strategy; Trace attack paths across chained components; Produce clear engagement results for non-engineering audiences; Lead communication with developers and stakeholders; Build frameworks, runbooks, and rubrics for repeatable testing; Leave reusable mechanisms behind; Set peer-review bar and mentor engineers.

Seniority

Senior, hands-on IC with leadership responsibilities

Sourced via amazon · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.