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:

May 11, 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. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.

Leidos.com. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.