Senior Cybersecurity Engineer

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Cyber and IT Risk Management Job Qualifications: Skills: Cyber Threat Intelligence, Security Platforms, Vulnerability Scanning Certifications: None Experience: 10 + years of related experience US Citizenship Required: Yes Job Description: Lead with purpose. Defend with expertise. Join GDIT as a Senior Cybersecurity Engineer and take ownership of mission-critical cybersecurity programs that protect Department of Defense (DoD) systems. You’ll serve as a key technical authority, leading security design, risk assessments, and authorization strategies across diverse, high-impact environments. As a senior team member, you’ll work both independently and collaboratively, mentor junior engineers, and drive system accreditation from strategy through execution—delivering proactive security and continuous compliance in support of national defense. What You’ll Do: Lead the development, assessment, and authorization (A&A) of complex DoD systems following RMF processes (including DAAPM 2.2, JSIG Rev 4, ICD-503). Own the creation and lifecycle management of RMF documentation (SSPs, POA&Ms, SCTMs, risk assessments, and related artifacts). Guide teams through successful ATO/IATO achieveme [... source excerpt omitted ...] supporting incident response planning and readiness. Collaborate with technical leads, mission stakeholders, and leadership to develop secure, scalable solutions aligned with DoD requirements. Evaluate and enhance system hardening, configuration management, and patching processes, including AI-assisted prioritization of patching based on exploitability, asset criticality, and threat intelligence. Act as a mentor to junior and mid-level engineers, cultivating a culture of knowledge sharing and technical growth. Track and integrate evolving cybersecurity trends, threat intelligence, and DoD security guidance into ongoing support activities. Education: Bachelor’s degree in Cybersec [... source excerpt omitted ...] SP, CCSP, CISM, CEH, CAP Cloud & Platforms: AWS SysOps Administrator, Cloud+, Linux Essentials, Splunk Tools & Management: ITILv4, Project+, eMASS, HBSS, ACAS Required Skills & Qualifications: Demonstrated leadership in cybersecurity architecture, RMF compliance, and system accreditation. Strong technical experience with vulnerability assessment, risk mitigation, and ATO lifecycle management. Experience designing or integrating AI/ML-based cybersecurity solutions, such as anomaly detection models, behavioral analytics, or automated risk scoring to drive mitigation actions, is highly desirable. Hands-on familiarity with integrating AI/ML outputs into security workflows (e.g., fee