HBSS Systems Administrator

Description ABOUT THE ROLE: TEKsystems is seeking a skilled HBSS Administrator in Fort Belvoir, VA to join the I3TS team supporting DTRA. The I3TS program provides enterprise-wide IT support to enable DTRAu2019s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRAu2019s internal and external mission partners operating in CONUS and OCONUS locations. The candidate will be responsible for ensuring the security and integrity of IT systems by running their Endpoint Security with experience in Trellix and Microsoft Defender. Administrator will also be responsible in applying Security Technical Implementation Guides (STIGs), managing system patches, and overseeing vulnerability management processes. This role supports federal clients in maintaining compliance with the Department of Defense (DoD) and other federal cybersecurity standards. The candidate will be responsible for identifying points of vulnerability, non-compliance with established Information Assurance (IA) guidelines and regulations and recommend mitigation strategies, along with assisting users as needed in a classified computing environment. The selected candidate must be able to work independently as well as with a team of IT analysts, administrators, and engineers. The position requires excellent communications skills, both verbal and written. The candidate must be able to work in a fast-paced environment and adapt to shifting priorities. Must possess an active DoD TS/SCI Clearance at time of consideration Key Responsibilities: u2022 Continuous upkeep, monitoring, analysis, and response to Information System, network and security events using Endpoint Security tools such as Trellix and Microsoft Defender. STIG Application and Compliance: u2022 Implement and maintain Security Technical Implementation Guides (STIGs) on Endpoint Security Tools. u2022 Conduct regular STIG compliance checks using tools like SCAP Compliance Checker and STIG Viewer. u2022 Document STIG configurations and remediation actions to ensure audit readiness. Patching and System Updates: u2022 Manage and deploy operating systems and application patches in accordance with federal patch management policies. u2022 Coordinate patch schedules to minimize operational impact while meeting compliance deadlines. u2022 Verify patch deployment success and troubleshoot any issues arising from updates. System Hardening: u2022 Harden systems by applying best practices and federal security guidelines to reduce attack surfaces. u2022 Maintain configuration baselines and ensure systems adhere to DoD and NIST standards. Incident Response Support: u2022 Participates in internal/external security audits/inspections; performs risk assessments and Continuous Monitoring. u2022 Assist in identifying and responding to security incidents related to vulnerabilities or misconfigurations. u2022 Document incidents and contribute to after-action reports for continuous improvement. Collaboration and Reporting: u2022 Work closely with system administrators, engineering staff, and compliance teams to ensure cohesive security operations. u2022 Prepare detailed reports and briefings for federal clients on STIG compliance, patching status, and vulnerability management efforts. u2022 Develop, implement and enforce Information Security Policies and Procedures. Tool Utilization: u2022 Trellix and Microsoft Defender. Skills Trellix, System hardening, STIG Compliance, Windows, Linux, NIST Additional Skills & Qualifications Required Qualifications: u2022 BS bacheloru2019s degree with 8-12 yearsu2019 experience or 6-10 years of IA experience without a degree. Specific experience, education and training may be considered in lieu of degree. u2022 A Current DoD 8570 baseline certification u2022 HBSS 301 Certification (Preferred) u2022 Understanding of the Risk Management Framework (RMF), NIST, ICD, and CNSS standards. u2022 Familiarity with network technologies (LAN & WAN) and best practices within a classified environment to include crypto and key management u2022 STIG compliance, SCC and STIG Viewer experience, and ACAS expertise. u2022 Expert with Microsoft Windows, Linux, and system virtualization in a secure network environment. u2022 Must be able to work in a constantly changing regulatory environment with short-, mid-, and long-term timelines for remediating any non-compliance u2022 Must be able to work well within a team environment and able to adapt quickly to change u2022 Good writing and verbal presentation skills u2022 Must possess an active DoD TS/SCI Clearance at time of consideration. Desired Qualifications: u2022 Security+ or CISSP or equivalent u2022 DoD IS knowledge and experience u2022 Security hardening scripting/automation experience u2022 Ansible and or MECM experience u2022 Microsoft OS Certification (MCSE Win 7 or other) u2022 Linux certification (RHCSA, CompTIA Linux, LCFS/LCFE, etc.) Experience Level Mid Level Job Type & Location This is a Contract position based out of Fort Belvoir, VA. Pay and Benefits The pay range for this position is $50.00 - $53.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: u2022 Medical, dental & vision u2022 Critical Illness, Accident, and Hospital u2022 401(k) Retirement Plan u2013 Pre-tax and Roth post-tax contributions available u2022 Life Insurance (Voluntary Life & AD&D for the employee and dependents) u2022 Short and long-term disability u2022 Health Spending Account (HSA) u2022 Transportation benefits u2022 Employee Assistance Program u2022 Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a fully onsite position in Fort Belvoir,VA. Application Deadline This position is anticipated to close on Mar 9, 2026. h4>About TEKsystems: We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services Weu2019re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Weu2019re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Weu2019re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Weu2019re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at . The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

Created: 2026-02-27