Senior Systems Administrator (Unix/Linux)

Company: Boarhog LLC
Location: Dahlgren
Posted on: February 18, 2026

Job Description:

Job Description Job Description Boarhog is in search of a Senior Systems Administrator (Unix/Linux) to work with the team providing Information Technology (IT) support services for day-to-day operations at the Naval Surface Warfare Center (NSWC) Dahlgren Division (DD) Corporate Operations Department (10 Dept) IT Division (Code 104) in Dahlgren, VA. The NSWC DD provides the military with the development and integration of warfare systems for the warfighter, warfighting, and the future fleet. Its vision to design, develop, and integrate technologically superior, 21st century warfare systems. The 10 Dept is responsible for assessing Dahlgren Division business needs and providing specialized expertise, advice, and solutions in several areas including IT. The Code 104 is responsible for the management of the Command's unclassified RDT&E (uRDTE) and classified RDTE (cRDT&E) networks and the Secure Defense Research and Engineering Network (SDREN), and Joint Worldwide Intelligence Communication System (JWICS) and non-JWICS Top Secret (TS) collateral and TS/Sensitive Compartmented Information (SCI) stand-alone networks, and commercial Internet connections (e.g., wired, wireless, satellite). They also support the unclassified Navy/Marine Corps Intranet (uNMCI), classified NMCI (cNMCI), and the JWICS. Code 104 provides products and services such as IT asset management, IT procurement, telecommunications (landline, VOIP, and mobile Wi-Fi), network infrastructure lifecycle support and management, endpoint lifecycle support and management, SharePoint administration, enterprise application development, Virtual Desktop Infrastructure (VDI) and Cybersecurity services. FUNCTIONAL RESPONSIBILITY: Provide system administration, configuration, and maintenance for servers, endpoints, and operating systems. Configure, patch, and upgrade operating systems, applications, and associated hardware to maintain performance. Perform database tuning, monitoring, and security, and migrate existing databases and applications. Manage user accounts, permissions, and access controls, conduct system performance monitoring, diagnostics, and capacity planning, and implement and maintain backup, recovery, and COOP procedures. Support install, configuration, and administration of virtualization platforms Collaborate with cybersecurity personnel to apply DISA STIGs, perform vulnerability scans, and remediate findings. Monitor logs, alerts, and performance metrics to identify issues and perform root-cause analysis. Provide technical support and troubleshooting, prepare and maintain system documentation, configuration baselines, SOPs, and change control records. EXPERIENCE: Six (6) years of professional experience in Unix and/or Linux system administration of networks and software systems. Experience in system backup and recovery Basic Software management Security management and library management Installation and configuration of hardware, operational systems and COTS software Operating computer systems in different operating environments Sizing, performance, tuning, hardware / software / network troubleshooting and resource allocation Qualified experience in different network protocols including TCP/IP and major network security tools such as firewalls Knowledge of computing and networking vulnerabilities, attack methods and latest detection methods EDUCATION: Master's Degree in Electrical, Electronic, Computer Engineering, Computer Science, or Information Systems CERTIFICATIONS / CLEARANCE REQUIREMENTS: Designated as IAT III level Active Top Secret security clearance OTHER HIRING CONSIDERATIONS: Preference is given to candidates who reside in a Historically Underutilized Business Zone (HUBZone) as determined by the Small Business Administration (see SBA website) BOARHOG BENEFITS: Boarhog has over 13 years of defense industrial base steady, controlled growth and profitability, offering our full-time associates a remarkable compensation package, including: Competitive salary and opportunities for additional compensation. Greater Self-Determination Medical / Dental / Vision Health Benefits. Generous 401K retirement plan after six months of full-time employment, with pre-tax/post-tax options and company matching with immediate vesting to boost retirement savings Vacation. Health savings account. Stipend for residing in a HUBZone location Relocation or small signing bonus, and earned a performance bonus. We thrive in a welcoming culture within a completely flat organization, with a demonstrated vested interest in our associates' personal and professional goals and aspirations, taking pride in the resulting exceedingly low associate turnover rate. As a successful and respected SBA Certified Service Disabled Veteran Owned (SDVO) and Historically Underutilized Business Zone (HUBZone) small business, there is no fat on the Boarhog, promoting a great degree of self-determination nobody with Boarhog has ever and will never make a living watching other associates do work. The company Chief Executive Managing Member and Owner actively engages in the day-to-day operations and growth objectives, and also periodically performs direct on government and commercial contracts. Pigs in the breakfast skin-in-the-game, and the story behind our logo. Come join us! E04JI800rmcl4084ldp

Keywords: Boarhog LLC, Ellicott City , Senior Systems Administrator (Unix/Linux), IT / Software / Systems , Dahlgren, Maryland