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Windows System Administrator

Choisys Technology

Today
Secret
Mid Level Career (5+ yrs experience)
IT - Support
Remote/HybridCrystal City, VA (Off-Site/Hybrid)

Start Date: Immediately

Contract Term: December 17, 2025

Completion Bonus: A $5,000 bonus will be paid upon successful completion of contract through the last date of the contract term

Contract Continuation: There is a potential for contract continuation beyond Dec 17th, contingent upon award of a follow on contract or extension

Open to W2; 1099 Contractor Preferred

Worksite: Hybrid (Crystal City, VA)

Required:
5-7 years of Windows System Administration experience
BA/BS or equivalent years of experience
Active Security+ CE
Extensive experience with Active Directory infrastructure

Job Description:

We are seeking a highly qualified Windows System Administrator to provide expert systems engineering support to our Department of Defense (DoD) customer in Crystal City, VA. The successful candidate will leverage extensive technical knowledge and hands-on experience to deliver comprehensive engineering solutions in a secure, mission-critical environment.


The Windows System Administrator will:

Deliver advanced technical expertise supporting requirements development, architecture, build, integration, deployment, and sustainment of highly complex IT systems in accordance with project objectives and DOD standards.
Collaborate with multidisciplinary teams, including system, network, security, platform, software, and automation engineers—as well as QA/test professionals—to implement, modernize, and optimize enterprise applications (web/mobile), core services, and infrastructure.
Customize, configure, and integrate Commercial-Off-The-Shelf (COTS) and Government-Off-The-Shelf (GOTS) hardware and software solutions to meet customer and mission requirements.
Enable and support delivery of professional managed services, including but not limited to: IT operations, network and systems administration, help desk support, program management, leased circuit management, and facility operations.
Demonstrate expertise across key technology domains: Active Directory, Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), domain file services, print services, enterprise backup, endpoint protection/antivirus, server operating systems (Windows), ITSM/monitoring tools, and related specialty systems.
Lead system lifecycle engineering efforts—architecting, implementing, maintaining, auditing, and enhancing systems per customer, cybersecurity, and compliance requirements.
Analyze, troubleshoot, and resolve complex hardware/software/system-level issues; provide Tier III escalation and sustainment support individually and collaboratively.
Perform hardware and software installation and integration, ensuring seamless interoperability across new and legacy components (e.g., servers, backup appliances, monitoring agents, base OS/software).
Engineer and deploy enterprise IT solutions, including robust AD environments, Windows Server (2012, 2016, 2019+) platforms, and COTS/GOTS applications.
Investigate emerging technologies and provide technical assessments, trade studies, and recommendations aligned with customer requirements, budgets, and security policies.
Author and present detailed technical briefings, reports, and work products for various audiences.
Conduct capacity planning and support technology refresh and modernization planning efforts.
Develop comprehensive system engineering documentation—including solution analysis, bill of materials, cost estimates, and project schedules.
Provide technical leadership and guidance for infrastructure projects and proposal development, ensuring compliance with contract deliverables, standards, and best practices.
Adhere to and support enterprise change management and configuration processes in a DoD environment.
Drive IT disaster recovery planning, documentation, implementation, and testing.
Lead and participate in collaborative engineering meetings, technical reviews, and integrated product teams (IPTs).
Support and provide expertise in the deployment and administration of system monitoring solutions (e.g., SCOM, VMware vRealize Operations, ScienceLogic, etc.).

Desired Experience:

Understanding of DoD, DISA cybersecurity requirements including Security Technical Implementation Guides (STIGs)
MCSE or other Microsoft engineering-level certification
DevSecOps deployment model; understanding of Agile methodology. CMMI, ITIL a plus
Remote Access Technologies – mobile (Apple/Android), VPN, DMVPN, IPSec, VDI (Citrix/AWS Workspace/Azure)
Understanding of DoD, DISA cybersecurity requirements including Security Technical Implementation Guides (STIGs)
DISA Experience
JSP Experience
Microsoft Server 2016 and 2019
VMWare
group id: 90887847
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Job Category
IT - Support
Clearance Level
Secret