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System Administrator, Senior

Eliassen Group

Aberdeen Proving Ground, MD 21005 • 9/10/2026

Information Technology

Job Description

Job Description
Description:

On-site in Aberdeen Proving Ground, MD

Our client seeks a Senior System Administrator to provide functional and empirical analysis of software systems and administer primarily Linux environments with some Windows support. The role is onsite at Aberdeen Proving Ground and may follow a 4x10 or 5x8 schedule. The position includes server installation and upgrades, troubleshooting, end-user device support, system monitoring, backup procedure development, and testing of operating systems, networking software, and hardware.

Due to federal security clearance requirements, applicant must be a United States Citizen with an active Secret clearance. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $45.00 to $55.00/hr. w2

Responsibilities:
  • Provide functional and empirical analysis of software systems.
  • Administer Linux and Windows systems and networks with emphasis on Linux.
  • Install, upgrade, and troubleshoot servers.
  • Provide software support for laptops, desktops, and printers, including hardware configuration and network design support.
  • Monitor system configuration, including server event logs.
  • Test operating systems, networking software, and computer hardware.
  • Develop and monitor server backup procedures.
Experience Requirements:
  • Knowledge of TCP/IP, information security and authorization profiles, or system administration of Linux or Windows networks and systems. Linux experience is prioritized.
  • Experience managing servers, including installation, upgrades, and problem resolution.
  • Experience supporting end-user devices and configuring hardware.
  • Experience monitoring system configurations and event logs.
  • Experience testing OS, networking software, and hardware.
  • Experience implementing and monitoring backup procedures.
Education Requirements:
  • Bachelor's degree in Computer Science, Mathematics, or another engineering or technical discipline.
  • Five years of experience within the last eight years.
  • Active Secret clearance with ability to upgrade to TS/SCI.
Recruitment Transparency Notice
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screeningand hiringprocess. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (, ) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact.

About Eliassen Group:
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.
Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.
Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!