Systems Administrator-FT Belvoir

Job#: 3029150

Job Description:

Systems Engineer

Location: Ft. Belvoir, VA

Clearance required: TS/SCI with CI or FS POLY

Shift: 24x7 environment with rotating shifts

In this role you will:

• Have growth opportunities where you can make a difference to a very important mission.
• Join one of the portfolios Agile (scrum) teams.
• Be involved in investigation into ad hoc issues and analyze and resolve complex mission problems.

Responsibilities:

• Own enterprise systems end‑to‑end, from deployment through sustainment
• Administer and support Linux (primarily RHEL) and Windows Server environments
• Manage and maintain virtualized infrastructure (VMware‑centric)
• Perform routine and time‑sensitive patching, updates, and vulnerability remediation
• Administer Active Directory and core domain services (DNS, GPO, permissions)
• Identify, troubleshoot, and resolve system and infrastructure issues impacting availability or security
• Execute and document changes in accordance with compliance and operational standards
• Produce and maintain technical documentation, SOPs, and system inventories
• Communicate system health, risks, and remediation plans clearly to stakeholders
• Support environments requiring high availability, security controls, and operational discipline

Qualifications:

• Security+ or CISSP Certification
• Hands‑on experience administering Linux (RHEL) and Windows systems
• Experience managing VMware‑based virtualized environments
• Understanding of enterprise infrastructure operations
• Experience operating in secure or regulated environments (DoD, IC, government, or equivalent)
• Familiarity with security compliance practices (e.g., STIGs, vulnerability scanning, remediation)
• Ability to troubleshoot across systems, virtualization, and basic networking layers
• Comfortable working independently and owning systems without direct oversight

Nice to Have Skills (but not required):

• Scripting or automation (Bash, PowerShell)
• SCCM, Intune, Satellite, or similar management tooling
• Basic to intermediate networking experience (routing, switching, DNS, DHCP)
• Prior work in classified or mission‑critical operational environments

Schedule: Four teams necessary to cover 24/7/365. Alternating between: Day shift 700am-700pm, Night shift 700pm-700am.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.

Employee Type:

Contract

Location:

Fort Belvoir, VA, US

Job Type:

Infrastructure and Security

Date Posted:

April 20, 2026

Pay Range:

$70 - $90 per hour

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