RMF/ISSE Lead — Senior Cybersecurity Engineer

CACI International Inc; Sterling (VA); On-site; USD 103,800 - 218,100; Full time

Benefits offered by this job

Local travel up to 10%

Job summary

CACI International Inc is seeking a hands-on Senior Cybersecurity Engineer to lead the security posture of our division’s Electronic Warfare systems. You will implement, maintain, and adapt comprehensive security measures to protect customer data, systems, and networks throughout the lifecycle.

You will manage and mentor a small team of Security Engineers, driving secure design, RMF processes, ATO readiness, and continuous monitoring to defend mission-critical defense systems and national

Qualifications

• Bachelor’s degree or equivalent experience in a related field.
• 10+ years with ISSE/ISSO responsibilities, preferably in DoD/IC environments.
• Experience achieving IATT/ATO on DoD or IC programs.
• People management or team leadership experience.

Responsibilities

• Lead and mentor a team of 3–5 Security Engineers and oversee project delivery.
• Design secure system architectures across web apps, stacks, WAFs, IDS/IPS, and antimalware tooling; align with SDLC per NIST guidelines.
• Execute RMF activities (Steps 1–6) and guide systems to ATO.
• Develop and review A&A documentation (SSP, BoE) using Xacta/eMASS and ensure compliance.
• Oversee continuous monitoring and vulnerability management with IC/DoD tools.
• Direct incident response activities and participate in on‑call rotations.

Skills

RMF processes

NIST SP 800-53

NIST 800-64 Rev. 2

ISSE leadership

Linux/Unix

Education

Bachelor’s degree in computer science / cybersecurity / engineering / IT

Tools

Xacta

eMASS

Nessus

ACAS

Tenable

Job description

CACI International Inc is seeking a hands-on Senior Cybersecurity Engineer to lead the security posture of our division’s Electronic Warfare systems. You will implement, maintain, and adapt comprehensive security measures to protect customer data, systems, and networks throughout the lifecycle.

You will manage and mentor a small team of Security Engineers, driving secure design, RMF processes, ATO readiness, and continuous monitoring to defend mission-critical defense systems and national