Sr Offensive Security Engineer

About the Role

What You'll Do We are seeking a highly skilled and motivated Senior Offensive Security Engineer to join our Threat Management & Security Operations organization. In this hands-on role, you will think and operate like an adversary — continuously finding, exploiting, and helping remediate real-world weaknesses across First Advantage ’s products, cloud infrastructure, networks, and people. You will design and execute penetration tests, red and purple team engagements, and adversary emulation exercises that validate our detection and response capabilities and measurably reduce enterprise risk at-scale. This role partners closely with Security Operations, Threat Intelligence & Hunt, Vulnerability Management, Application Security, DevOps, and Product teams to turn offensive findings into prioritized, business-aligned remediation. The ideal candidate is equally comfortable building custom tooling, chaining exploits across complex environments, and communicating impact clearly to both technical teams and executive leadership. Responsibilities Penetration Testing: Plan, scope, and execute internal and external penetration tests across web and mobile applications, APIs, cloud (AWS/Azure), networks, and infrastructure using real-world attacker techniques. Red & Purple Teaming: Design and run adversary emulation and red team engagements that combine multiple attack paths to accomplish objective-based goals, and partner with the SOC, Threat Intel & Hunt, and Detection Engineering on purple team exercises to validate and improve detection coverage. Exploit Development & Chaining: Identify, validate, and safely exploit vulnerabilities — including chaining lower-severity issues into high-impact attack paths — and demonstrate tangible business impact in production-representative environments. Adversary Emulation: Model real-world threat actor tactics, techniques, and procedures (TTPs) mapped to the MITRE ATT&CK framework to test and strengthen organ

Requirements & Qualifications

• Strong problem solving foundations, knowledge of modern engineering practices, and interest in technology systems.

Perks & Benefits

• Official mentor support
• verified hiring timeline
• and career progression.