Cybersecurity Engineer \u2013 Zero Trust / RMF / SIEM, Hybrid Re with Security Clearance

GTSC seeks Cybersecurity Engineer u2013 Zero Trust / RMF / SIEM for mid-August 2026 start. Commitment to start must be by 30 June in order to complete background checks required for this position. Location : This is a local remote position in the metropolitan Washington DC area. There will be occasions when you are asked to perform some work onsite or to meet with other team members. Mission Your role will be enterprise cybersecurity engineering across Zero Trust, identity-centric access, least privilege, continuous monitoring, threat detection, secure configuration, hardening, NIST SP 800-53, NIST SP 800-207, cloud, network, endpoint, and identity environments. ~~~ This position is on a new Task Order with client review of contingent hires ~~~ Education : Expertise matters. There is no degree requirement. Core Responsibilities • Implement security controls and Zero Trust architecture. • Support vulnerability management + IR. • Own monitoring and compliance posture. Required Expertise • NIST SP 800-53 control implementation. • Zero Trust (SP 800-207). • SIEM + logging + monitoring. • Incident response + RCA. Desired Expertise • AWS/Azure cloud security. • CISSP / CISM certification. Successful Applicants Your expertise and resume should reference your backgroundwith Zero Trust, NIST SP 800-53, NIST SP 800-207, IAM, RBAC, PAM, MFA, SIEM, EDR/XDR, vulnerability management, cloud security, incident response, RCA, change management, SOP development, audit readiness, and security documentation. Background Investigation Requirements • Must be a U.S. Citizen. • Must be eligible to obtain and maintain a Public Trust clearance. • Must successfully complete the required background investigation and security training. Benefits Benefits: • Medical • Dental • Vision • Flexible Spending Account • Health Savings Account • Life and AD&D • Short-Term Disability • Long-Term Disability • 401(k) • Tuition Assistance • Paid Time Off GTSC is proud to be an equal opportunity employer, committed to recruiting, hiring, and promoting qualified people of all backgrounds, regardless of sex; race; color; creed; national origin; religion; age; marital status; pregnancy; physical, mental or sensory disability; sexual orientation; gender identity or any other basis protected by federal, state or local law. Learn more about your EEO rights as an applicant. GTSC is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Employment in this position is contingent upon the successful completion of a background check. Depending on the nature of the job duties or requirements set forth by our government clients, additional screenings such as drug testing and/or credit checks may be required. These checks are conducted in accordance with all applicable federal, state, and local laws.