Linux Systems Administrator

Leidos is seeking a candidate to fill a Linux System Administrator position supporting DISA's GSM-O II contract at Ford Island, Hawaii. The candidate will maintain the smooth operation of multi-user computer systems running Redhat Linux but also includes Windows Server on a global network management system. Working with server farms as well as working with systems in a cloud environment. Provides support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations. Approximately 5% of the job will require domestic and international travel. Be familiar with performing based on service level agreement (SLA). Work is performed based on the customer Accepted Level of Performance. Candidate is familiar performing within a fixed price, performance-based environment where performance is based on pre-determined Service Level Agreement's (SLA's) or Acceptable Levels of Performance (ALP's). Candidate is required to support the development, documentation and tracking of measurements and metrics relevant to the ALP's.

PRIMARY RESPONSIBILITIES:

• Be able to work in a rapid paced environment and must be able to work independently.
• The candidate works independently to maintain the smooth operation of a multi-user computer systems, including coordination with network administrators.
• Duties include setting up administrator and service accounts, tuning system performance, installing system wide software and allocate mass storage space.
• Interacts with users and evaluates vendor products.
• Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery.
• Develops and monitors policies and standards for allocation related to the use of computing resources.
• Creates, maintains, and implements detailed documentation and maintains standard operating procedures.
• Provides coaching and reviewing the work of lower level technical staff.
• Provides support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations.

BASIC QUALIFICATIONS:

• Bachelor's degree in a relevant technical discipline and 8 years of overall related experience with Unix or Redhat Linux required. Specific experience, education and training may be considered in lieu of degree.
• Experience with VMware Vcenter and associated products.
• Experience with integration of Network Management (NM) and Element Management (EM) systems with network performance, trouble ticketing, and security subsystems.
• Experience with support systems to include enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS).
• Shell scripting (e.g. bash) and experience in other languages like Perl.
• Application of security settings and other commercial best practices such as DISA STIGS.
• Currently possess an active Top Secret security clearance is required for this position.
• Currently possess DoD 8750 certification at least IAT level II, e.g. Security+ce.
• Experience working in an AWS cloud environment.

PREFERRED QUALIFICATIONS:

• Working in an AWS cloud environment.
• Integration of Network Management (NM) and Element Management (EM) systems with network performance, trouble ticketing, and security subsystems highly desired.
• Experience with support systems to include enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS).
• Candidates with a thorough knowledge of networking principles to included TCP/IP a plus.
• Experience with a ticketing system such as BMC ITSM.
• ITIL v3 Foundation certified-
• Windows Server experience.
• Experience working with virtual environments.

GSMO

External Referral Eligible If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: July 27, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $92,300.00 - $166,850.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.