Linux Systems Administrator and Network Engineer

Job Description

Requirements
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### Must have:

### - We require a bachelors degree with at least 4 years of relevant experience, though additional experience, training, or certifications may be accepted in place of a degree. - We need hands-on experience administering Linux servers and workstations in small, complex network environments. - We expect strong proficiency in Linux system administration and file transfer protocols. - We require an active IAT Level II certification, such as Security+. - You must be a U.S. citizen and currently hold an active Top Secret clearance, with the ability to upgrade to TS/SCI after hire. - Preferred: a masters degree with 2+ years of relevant experience. - Preferred: familiarity with Event Viewer, VMware, Active Directory, Group Policy, ACAS, and endpoint security tools. - Preferred: an active Top Secret/SCI clearance. - Preferred: an advanced Linux certification, such as Linux+.

Responsibilities:
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- We provide daily on-site support to Government and DoD personnel to help maintain the security and reliability of the ISSE Guard and TMPC Network. - We handle maintenance, patching, STIG implementation, troubleshooting, and vulnerability management for mission-critical Linux systems. - We deliver end-to-end network engineering support, including planning, design, configuration, and operational oversight. - We evaluate TMPC Network and LAN components and recommend emerging technologies that can improve mission effectiveness. - We stay informed on evolving tactical capabilities and contribute to TMPC lifecycle development and modernization efforts. - We perform periodic security testing, support accreditation and certification documentation, and implement system upgrades. - We manage LAN maintenance tasks, including firewall administration, access control, VPN configuration, and switch/router updates aligned with baseline standards. - We develop solutions to complex technical issues and share best practices across Government and contractor teams. - We create, update, and refine security documentation, manage security activity schedules, and produce weekly and monthly LAN configuration reports. - We support Information Assurance and certification activities, advising stakeholders to maintain compliance with security policies and requirements.
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Company:
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We are Leidos, an industry and technology leader delivering smarter digital and mission innovations for government and commercial customers. This role is based at Camp H.M. Smith, Hawaii, working an evening shift in support of mission-critical operations for the Theater Mission Planning Center in a dynamic Department of Defense environment. You will work alongside a dedicated onsite Government team, operate independently, and contribute to secure network operations. We offer competitive compensation and benefits, including health and wellness programs, income protection, paid leave, and retirement. The posted pay range is $73,450 to $132,775, subject to factors such as experience, education, skills, and internal equity.
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