System Administrator 3

Columbia Technology Partners•Annapolis Junction, MD

About The Position

Columbia Technology Partners is seeking a System Administrator 3 to support mission-critical systems in a dynamic, highly technical environment. The role administers, maintains, and optimizes enterprise Linux-based infrastructure; implements automation solutions; supports cloud and security initiatives; and troubleshoots complex system issues. It requires expertise in Red Hat Linux, infrastructure automation, system integration, and security compliance to help ensure reliable, efficient system operations. The position supports Linux server environments, AWS cloud environments, vulnerability management, and Service-Oriented Architecture (SOA) environments. The administrator participates in operational support, including shift work and weekend coverage as required. The position requires U.S. citizenship, an active security clearance with the appropriate polygraph, and successful completion of a security background investigation and polygraph. Applicants and employees are subject to random drug testing in accordance with Executive Order 12564.

Requirements

Bachelor's degree in a technical discipline and at least 15 years of System Administrator experience supporting programs of similar scope and complexity, or 20 years of System Administrator experience in lieu of a degree.
Extensive experience administering and troubleshooting Linux environments, including Red Hat Enterprise Linux.
Hands-on experience with Ansible automation, AWS cloud environments, and Tenable (Nessus) vulnerability management.
Current DoD 8570 IAT Level II certification.
Ability to resolve complex hardware, software, and systems integration issues.
U.S. citizenship.
Active security clearance with the appropriate polygraph.
Successful completion of a security background investigation and polygraph.
Applicants and employees are subject to random drug testing in accordance with Executive Order 12564.

Nice To Haves

Experience supporting mission-critical enterprise environments with high-availability requirements.
Strong understanding of Service-Oriented Architecture (SOA) concepts and system interdependencies.
Proven analytical and troubleshooting skills for diagnosing complex technical challenges.
Ability to work effectively in operational environments requiring shift work, weekend support, and collaboration across technical teams.

Responsibilities

Administer, maintain, and optimize Linux-based server environments, particularly Red Hat Enterprise Linux.
Develop, implement, and maintain infrastructure automation using Ansible.
Support AWS cloud environments and ensure system performance, availability, and security.
Perform vulnerability management using Tenable (Nessus) and support remediation efforts.
Troubleshoot and resolve complex hardware, software, application, and integration issues.
Ensure systems meet required security standards, including applicable DoD requirements.
Support Service-Oriented Architecture (SOA) environments and understand interdependencies across integrated platforms.
Participate in operational support activities, including shift work and weekend coverage as required.

Benefits

Three medical plans with in-network and out-of-network options.
Vision and dental coverage paid in full by CTP.
401(k) with a 6% company contribution.
Paid time off and customizable leave plans.
Jury duty, bereavement, and military leave.
Up to $10,000 for approved career-related learning, training, education, and/or tuition.
Life and AD&D insurance and short-term and long-term disability coverage at no cost to the employee.
End-of-year profit-sharing bonus.
Tiered referral bonus program, with bonuses ranging from $7,000 to $20,000 if the referral joins the team.
Competitive pay.