Seeking a career with a sense of purpose, work life balance, and growth opportunities … There’s a place for you at Leidos! At Leidos, we are committed to making the world safer, healthier, and more efficient through technology, engineering, and science. You would be a valued member of global team providing services across civil, defense, health, and intelligence business lines. At Leidos, team member career development, flexibility, and well-being are priority and is supported by consistent leadership engagement, an experienced human relations staff, and numerous employee support programs.

Use your unique talents and make an immediate impact…

• The Leidos Defense group has an opening for a highly motivated individual. The System Administration II position at MacDill AFB, FL supports the Global Solutions Management-Operations II (GSM-O II), Joint Communications Support Element (JCSE). The JCSE team provides en-route, early entry, scalable C4 support to Regional Combatant Commands, Special Operations Command, and other agencies. In this role, you will be responsible for system assessments, and providing hands-on engineering support. Key elements of this position include: Participate in evaluation, selection, implementation and on-going support of software, hardware and tools used by the Enterprise Infrastructure platform; Respond to End User requests for technical support and assistance within established procedures; providing Tier II support to the Joint Network Operations Center (JNOC); developing, engineering, and recommending hardware and software solutions; and conducting cybersecurity mitigations on design solutions to comply with Risk Management Framework (RMF) cybersecurity requirements.

Responsibilities include:

• Responsible for implementing, tuning and maintaining LINUX server, MS Server, MS Domain Controller, MS Exchange, and VMWare vCenter, VIEW VDI, and VMware Horizon View based solutions running on virtualized infrastructure.
• Support SCCM Systems Manager with all aspects of server maintenance, enterprise workstation imaging, application updates and deployments and issue resolution.
• Designs, implements, configures, and maintains MS Server instances running on ESXi and VMware vSphere for server consolidation and virtualization.
• Administer, maintain, and troubleshoot Storage Area Networks (SAN) and Network Attached Storage (NAS) attached to VMware environments.
• Manages Active Directory Certificate Services (ADCS) and deploys Internet Information Services (IIS) on the DC.
• Troubleshoots, isolates and identifies problems with all servers.
• Monitor and manage system resources and log files to maintain operating efficiency.
• Perform systems security and user administration functions
• Design, implement and maintain a consistent backup and disaster recovery plan.
• Provide technical direction on network topologies, server configurations, hardware software deployments and other administrative tasks related to production servers.
• Document technical requirements, system changes, facilitate design sessions and architectural reviews.
• Perform vulnerability and risk analyses of computer systems and applications during all phases of the system development life cycle.
• Support updates to and maintenance of the POA&Ms for the JCSE Enterprise. Support development of RMF Security Plans and assist in the creation and updating of RMF accreditation packages.
• Perform system and application patching as required to maintain the server’s Authority to Operate (ATO) status through the Certification and Accreditation (C&A) and Risk Management Framework (RMF) processes.
• Troubleshoot and resolve complex problems and respond to escalated requests for technical assistance.
• Have flexible working hours to be available to support team when needed.

Minimum Qualifications:

• Current DoD 8570 IAT Level II certification (CompTIA Security+ce, CCNA Security, CySA+, etc.)
• Virtualization, LINUX or Microsoft Certification
• Education: Bachelor’s degree and 4+ years of experience; additional years of directly applicable experience may be accepted in lieu of a degree.
• Clearance:  Secret

Intrigued?... There’s more! Leidos understands that there are many factors that contribute to a career decision, but pay and benefits are fundamental factors.

Compensation: Very competitive, with a robust rewards and recognition program

Health and well-being: Comprehensive coverage with many programs (ex. HSA, FSA, Dental, Vision, 24/7 EAP) to ensure the well-being of you, eligible family members, and registered domestic partners.

Income Protection: Programs to help navigate life events: Company-provided Term Basic Life, Group Universal Life, Optional Dependent Life, Accidental Death and Dismemberment, and Business travel accident

Leave: Leidos is committed to work life balance, with competitive leave options.

Retirement: Leidos 401k plan, with company match determined by fringe benefit package 

Employee Stock Purchase plan: 10% discount for all enrollees

Family Benefits: Center-based and in home back-up childcare, free access to Sittercity, and Dependent (Daycare) Flexible Spending Accounts

The Leidos values are integrity, inclusion, innovation, agility, collaboration, and commitment. It’s under these values that we feel we are able to provide a safe work environment where we foster equality, growth, and creativity. If you feel Leidos is a fit you and can meet your needs, please submit your application and join our team in our commitment to excellence.  

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 7, 2026

Pay Range:

Pay Range $73,450.00 - $132,775.00

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.