ServiceNow Lead Security Engineer

CACI•Arlington, VA

About The Position

CACI is seeking a ServiceNow Lead Security Engineer to join their team. This role reports to the ServiceNow Program Manager and collaborates with the ServiceNow Platform Team. The ideal candidate is a security engineer with RMF/NIST expertise, strong cloud security and ServiceNow experience, excellent documentation and communication skills, and the ability to lead in a complex environment.

Requirements

Ability to obtain Department of Homeland Security (DHS) Entry On Duty (EOD)
B.A./B.S. or equivalent + 15 years of relevant experience
Experience supporting ServiceNow development
Understanding of NIST SP 800 53, RMF, FedRAMP, and federal security control frameworks.
Hands-on experience supporting ATO packages, SSP development, control implementation statements, and evidence collection.
Experience performing security assessments, vulnerability analysis, risk assessments, and remediation tracking.

Nice To Haves

CISSP certification
CCSP certification
CEH certification
CySA+ certification
AWS security certification
Azure security certification

Responsibilities

Oversee and perform cybersecurity risk management activities using NIST RMF (800-53, 800-171) across multiple systems and environments
Coordinate and support 3rd-party assessments (3PAO), including preparation, evidence review, and remediation tracking
Lead and standardize security engineering processes across all ATOs and systems in multi-cloud (AWS, Azure, GCP), on-prem, and SaaS environments
Define and enforce security architecture standards and baselines, including cloud security, network security, and endpoint protection
Oversee implementation and operation of enterprise security capabilities: SOC operations and SIEM (Splunk), Endpoint detection and response (EDR/XDR), Threat intelligence and threat hunting, IAM and PAM solutions, Zero Trust architecture and access controls, Application security (SAST, DAST, IaC scanning)
Direct incident response and continuous monitoring activities, ensuring issues are identified, prioritized, and remediated
Lead governance and assurance activities to maintain compliance with NIST 800-53, RMF, and FedRAMP
Oversee control selection, tailoring, implementation, and validation across systems
Ensure effective operation of POA&M management processes across all systems and teams
Oversee development and quality of ATO packages, including SSPs, procedures, and supporting artifacts
Coordinate with SCAs, ISSOs, System Owners, engineers, and developers to ensure consistent implementation of security controls
Oversee enterprise vulnerability management programs using tools such as Wiz and Tenable
Ensure timely remediation or risk-based mitigation of vulnerabilities and compliance findings across environments
Oversee configuration management and baseline enforcement, including STIGs, CIS benchmarks, and hardened images (AMIs)
Review and approve security architecture designs, system changes, and risk acceptance decisions
Establish and track security metrics and reporting, including POA&M status, vulnerability trends, and incident metrics
Lead planning and execution of security tool deployments and upgrades across multiple environments
Ensure compliance with logging and monitoring requirements, including centralized log management and retention policies
Oversee access control and identity governance processes, including account reviews and privileged access controls
Guide DevSecOps practices, ensuring security is integrated into CI/CD pipelines and system development lifecycles
Use threat intelligence to guide security priorities, improve detection capabilities, and support threat hunting efforts
Provide direction during security incidents, including escalation, coordination, and reporting
Support training and knowledge sharing across engineering and security teams