Sr Unix/Linux Systems Administrator Job Listing at Tetra Tech BlueWater in Dahlgren, VA (Job ID 3119)

Description

Overview

Bluewater Federal is looking for a Sr Unix/Linux Systems Administrator to support the Department of the Navy, Naval Sea Systems Command, The Naval Surface Warfare Center Dahlgren Division (NSWCDD).

• Lead administration and life‑cycle operations for UNIX/Linux platforms supporting RDT&E/HPC environments and enterprise services across classified/unclassified networks; ensure compliance with DoD/Navy directives, STIGs, and RMF while maximizing availability, resiliency, and performance.
• Administer UNIX/Linux OSs (e.g., Red Hat, RedHawk, HPUX, Solaris, AIX, CentOS) and associated server hardware architectures; build, configure, patch, secure, and document systems.
• Provide HPC cluster and high‑performance workstation support (install/configure, O&M, performance tuning, data protection, backup/recovery; vendor coordination)
• Manage SAN/NAS/storage fabrics (e.g., NetApp, Vast, Dell EMC, Synology, Quantum); implement DR strategies and verify bare‑metal restores (e.g., Networker, Clonezilla)
• Execute vulnerability remediation, STIG checklist maintenance, antivirus signature updates; maintain A&A/RMF documentation
• Perform user/account management (LDAP/AD), IMACs, baseline imaging, and ticket documentation within SLA. Support test/training events and coordinate maintenance with network engineers.

• 5+ years of professional experience in relation to UNIX and/or Linux system administration of networks and software systems.
• Must have a Security+ certification
• Must have an active Top Secret clearance
• Experience in system backup/recovery, basic software management, security and library management, installation and configuration of hardware, operating systems and COTS software, operating computer systems in different operating environments, sizing, performance, tuning, hardware/software/network troubleshooting and resource allocation.
• Experience in maintaining proficiency in major network security tools such as firewalls.
• Experience developing system specifications and performing market research procurement tasks.
• Experience with different network protocols including TCP/IP.
• Experience of computing and networking vulnerabilities
• Deep experience in enterprise UNIX/Linux administration across u/c‑RDT&E, SDREN/JWICS and lab environments; familiarity with virtualization/VDI, backup tooling, and storage ecosystems.
• Proficiency with DISA STIGs, USCYBERCOM directives (IAVMs/CTOs), patch management, and security hardening on classified systems.

BlueWater Federal is proud to be an Equal Opportunity Employer.  All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. BlueWater Federal is a VEVRAA federal contractor and we request priority referral of veterans.

• 5+ years of professional experience in relation to UNIX and/or Linux system administration of networks and software systems.
• Must have a Security+ certification
• Must have an active Top Secret clearance
• Experience in system backup/recovery, basic software management, security and library management, installation and configuration of hardware, operating systems and COTS software, operating computer systems in different operating environments, sizing, performance, tuning, hardware/software/network troubleshooting and resource allocation.
• Experience in maintaining proficiency in major network security tools such as firewalls.
• Experience developing system specifications and performing market research procurement tasks.
• Experience with different network protocols including TCP/IP.
• Experience of computing and networking vulnerabilities
• Deep experience in enterprise UNIX/Linux administration across u/c‑RDT&E, SDREN/JWICS and lab environments; familiarity with virtualization/VDI, backup tooling, and storage ecosystems.
• Proficiency with DISA STIGs, USCYBERCOM directives (IAVMs/CTOs), patch management, and security hardening on classified systems.

BlueWater Federal is proud to be an Equal Opportunity Employer.  All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. BlueWater Federal is a VEVRAA federal contractor and we request priority referral of veterans.

• Lead administration and life‑cycle operations for UNIX/Linux platforms supporting RDT&E/HPC environments and enterprise services across classified/unclassified networks; ensure compliance with DoD/Navy directives, STIGs, and RMF while maximizing availability, resiliency, and performance.
• Administer UNIX/Linux OSs (e.g., Red Hat, RedHawk, HPUX, Solaris, AIX, CentOS) and associated server hardware architectures; build, configure, patch, secure, and document systems.
• Provide HPC cluster and high‑performance workstation support (install/configure, O&M, performance tuning, data protection, backup/recovery; vendor coordination)
• Manage SAN/NAS/storage fabrics (e.g., NetApp, Vast, Dell EMC, Synology, Quantum); implement DR strategies and verify bare‑metal restores (e.g., Networker, Clonezilla)
• Execute vulnerability remediation, STIG checklist maintenance, antivirus signature updates; maintain A&A/RMF documentation
• Perform user/account management (LDAP/AD), IMACs, baseline imaging, and ticket documentation within SLA. Support test/training events and coordinate maintenance with network engineers.