Jobs and Careers
CE
Lead Senior Systems Admin (UNIX/ LINUX)
CenturiaDahlgren, VA, United Statesfull_timeVerifiedPosted 23 Sept 2025
About the role
Job Title: Lead Senior Systems Admin (UNIX/Linux)Location: Dahlgren VAClearance: DoD Top Secret
Company/ Program Description: Centuria, a Service-Disabled Veteran-Owned Small Business (SDVOSB), has been delivering IT, Engineering, and Scientific solutions to the Federal Government since 2002. During our two decades of service, we have earned the trust and respect of our government clients for the simple reason that we have great people who are experts in their fields and take pride and ownership in everything they do. Job Responsibilities: · Monitor system health and performance· Troubleshoot and resolve system issues across hardware, software, and network layers· Maintain and manage storage systems· Manage system backup and recovery· Coordinate with external hardware, network, and infrastructure teams· Provide after-hours on-call and call-in support as needed· Ensure compliance with system security requirements· Participate in technical and engineering discussions· Create and maintain system-level scripts and automation tools· Apply system patches and perform upgrades· Administer and manage user accounts· Maintain accurate hardware and asset inventory records Job Requirements: Six (6) years of professional experience in UNIX and/or Linux system administration of networksand software systems. Experience in system backup and recovery; basic software management;security management and library management; installation and configuration of hardware;operational systems and Commercial Off-The-Shelf (COTS) software; operating computer systemsin different operating environments; and sizing, performance, tuning, hardware/software/networktrouble shooting and resource allocation. Experience in different network protocols including TCP/IP and major network security tools such as firewalls, knowledge of computing and networking vulnerabilities, attach methods, and latest detection methods Demonstrable experience in writing business/project plans, technical documents, presentations and proposals required. Individual must have high degree of skills with the MS Office toolsets.Candidate will work on-site.EducationBachelor’s degree in Computer Science or IT related field is preferred. CertificationsDoD 8570 IAT III. One of the following certifications is required- CASP CE- CCNP Security- CISA- CISSP or CISSP Associate- GCED- GCIH Security ClearanceDoD Top Secret with the ability to get a Top Secret clearance
Company/ Program Description: Centuria, a Service-Disabled Veteran-Owned Small Business (SDVOSB), has been delivering IT, Engineering, and Scientific solutions to the Federal Government since 2002. During our two decades of service, we have earned the trust and respect of our government clients for the simple reason that we have great people who are experts in their fields and take pride and ownership in everything they do. Job Responsibilities: · Monitor system health and performance· Troubleshoot and resolve system issues across hardware, software, and network layers· Maintain and manage storage systems· Manage system backup and recovery· Coordinate with external hardware, network, and infrastructure teams· Provide after-hours on-call and call-in support as needed· Ensure compliance with system security requirements· Participate in technical and engineering discussions· Create and maintain system-level scripts and automation tools· Apply system patches and perform upgrades· Administer and manage user accounts· Maintain accurate hardware and asset inventory records Job Requirements: Six (6) years of professional experience in UNIX and/or Linux system administration of networksand software systems. Experience in system backup and recovery; basic software management;security management and library management; installation and configuration of hardware;operational systems and Commercial Off-The-Shelf (COTS) software; operating computer systemsin different operating environments; and sizing, performance, tuning, hardware/software/networktrouble shooting and resource allocation. Experience in different network protocols including TCP/IP and major network security tools such as firewalls, knowledge of computing and networking vulnerabilities, attach methods, and latest detection methods Demonstrable experience in writing business/project plans, technical documents, presentations and proposals required. Individual must have high degree of skills with the MS Office toolsets.Candidate will work on-site.EducationBachelor’s degree in Computer Science or IT related field is preferred. CertificationsDoD 8570 IAT III. One of the following certifications is required- CASP CE- CCNP Security- CISA- CISSP or CISSP Associate- GCED- GCIH Security ClearanceDoD Top Secret with the ability to get a Top Secret clearance
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s