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Systems Administrator​/Service Desk Security Clearance

Job in Columbia, Howard County, Maryland, 21046, USA
Listing for: Amentum
Full Time position
Listed on 2026-06-25
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support, Cybersecurity
Job Description & How to Apply Below
Position: Systems Administrator / Service Desk with Security Clearance
Purpose and Impact:
Come be a part of an exciting and ever-changing program that provides a comprehensive range of state-of-the-art solutions and hands-on assistance in designing, implementing, managing, and sustaining operations across various network environments for our customer. We provide an environment that fosters and supports innovation and valuing "outside-the-box" thinking to solve complex problems. There are several training opportunities for team members that want to learn new technologies and stay current with their technical skillset.

We are a highly technical group and nurture growth, with a technical culture of cross-trained teammates with opportunities to develop additional skillsets.

Work Schedule:

8hrs/day, 5days per week, all onsite. Occasional Thursday evening patching (starting at 5 PM). Occasional travel will be available.

Essential Responsibilities:

* Maintain smooth operation of multi-user computer systems in coordination with systems and network engineering teams.
* Monitor and manage system resources (CPU, disk, memory, response times) to ensure optimal performance.
* Perform systems security administration, including account creation, user profile management, workstation/server imaging, and access control across multiple networks.
* Install, configure, and maintain system-wide software; set up administrator accounts; maintain system documentation; and tune system performance.
* Provide Tier 1-2 support to users, distinguishing isolated issues from enterprise-wide problems.
* Support implementation, troubleshooting, and maintenance of IT systems across Windows and Linux environments.
* Work within a JIRA ticketing environment to track incidents, collect data, analyze trends, and implement solutions.
* Diagnose customer issues, initiate repairs or returns, and document recurring problems with recommended preventive actions.
* Collaborate with systems and network engineers on enterprise-wide deployments and technology rollouts.
* Install and troubleshoot workstations, thin clients, applications, printers, scanners, phones, and other IT equipment.
* Provide backup recovery support and make recommendations for hardware/software purchases.
* Create and maintain technical documentation, including logical and physical diagrams. Work Environment, Physical Demands, and Mental Demands:
Standard Work Environment

Minimum Requirements (Knowledge, Skills, and Abilities):
* 4+ years of experience in an enterprise IT environment performing systems administration and/or end-user support
* Experience imaging and deploying Windows servers and/or workstations
* Strong troubleshooting experience in Windows environments
* Experience with Virtual Desktop Infrastructure (VDI), specifically VMware
* Experience administering enterprise systems using Active Directory and related administrative tools
* Ability to create clear technical documentation and diagrams
* Strong communication skills and customer-focused troubleshooting ability
* Experience with ticketing systems (Jira, Service Now, etc.)
* Experience working within classified enterprise networks
* Team-oriented mindset with the ability to collaborate technically with peers
* Required IAT Certs: one or more of the following:
Security+, SecurityX (CASP+), or CISSP
* Required Vendor Cert: one or more of the following:
Microsoft, VMWare, Cisco, Netapp, Pure Storage, HP, Dell, Linux+, Red Hat. If not currently achieved, then must achieve within 6 months of hire Security

Clearance Required:

* TS/SCI Minimum Years of

Experience:

* 4+ Required

Certifications:

* Required IAT Certs: one or more of the following:
Security+, SecurityX (CASP+), CISSP
* Required Vendor Cert: one or more of the following:
Microsoft, VMWare, Cisco, Netapp, Pure Storage, HP, Dell, Linux+, Red Hat. If not currently achieved, then must achieve within 6 months of hire

Preferred Qualifications:

* Bachelors Degree
* Prior Military experience This position is not designated as a safety sensitive position. As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel to comply with company drug and alcohol…
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