CareerPlan

Security Engineer III

Arlington, Virginia, United StatesFull-time$178k–$227k2026-10-21 → 2026-11-10

Core

Senior Application Security Engineer responsible for validating AWS services, applications, and websites against highest security standards through threat modeling, security reviews, and tool development.

Role type

Senior IC application security engineer

Builds

Security automation tools, threat models, and security guidance documentation for AWS services

Domain

Cloud security, application security, AWS infrastructure

Required skills

Application security reviews, Threat modeling, Security automation, Security tool development, Security metrics analysis, Mentoring junior engineers, Troubleshooting systems issues, Log analysis, Command line automation, Industry security vulnerability identification, Attack pattern analysis, Remediation techniques, Service-oriented architecture security, Microservices security, Web services security

Preferred skills

Risk identification techniques, Security in service-oriented architectures, Security in microservices, Security in web services

Responsibilities

Conduct application security reviews, Perform deep threat modeling on AWS services, Develop security automation and tools, Deliver security metrics and improvements, Provide security training and outreach to internal teams, Create security guidance documentation, Mentor junior engineers

Seniority

Senior, hands-on IC with mentorship responsibilities