System Administrator

Leidos Holding$92K — $166K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Must hold a TS SCI CI poly clearance.
  • 12 years of relevant experience, with educational background factors considered.
  • Compliance with DoD 8570 IAT Level 2 certification required.
  • Ability to troubleshoot network equipment (Cisco and Juniper).
  • Experience in system administration for Linux RHEL and Windows environments.
  • Knowledge of DoD RMF security practices and application compliance.
  • Proficient in Microsoft Office and automation scripting.

Responsibilities

  • Prepare technical documentation and deliverables succinctly.
  • Troubleshoot Cisco and Juniper networking devices effectively.
  • Utilize network monitoring tools such as MicroFocus/OpenText and HP.
  • Administer and optimize system operations and resources daily.
  • Maintain servers and generate monitoring reports as needed.
  • Conduct regular system checks for hardware integrity and process completion.
  • Provide training and guidance to junior staff for skill development.

Benefits

  • Comprehensive training and development programs.
  • Opportunities for career advancement within the company.
  • Supportive work environment promoting collaboration and innovation.
  • Access to cutting-edge technology and resources.
  • Flexible work schedules to promote work-life balance.
Full Job Description
The Digital Modernization Sector at Leidos has an opening for a System Administrator to support the Intelligence Community in providing technical support for the customer's system test and integration lab, and customer production environment. The System Administrator provides hand-on support for the IT infrastructure and technical assistance and support as needed to on-site administrators supporting the other two environments.

Description of Job Duties/Responsibilities:
  • Excellent writing skills required for preparing documentation and other technical deliverables.
  • Ability to troubleshoot Cisco and Juniper switches and routers.
  • Uses MicroFocus/OpenText and HP Network Monitoring tools.
  • Organizes and directs the configuration and operation of information management systems.
  • Provides the day-to-day system administration to include system and resource optimization, and user assistance.
  • Maintains servers and create and review monitoring reports and logs.
  • Performs daily system monitoring, verifying the integrity and availability of all hardware, server resources, system and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
  • Provides hands-on guidance and training to. more junior staff.
  • Applies OS patches for RHEL and Windows servers.
  • Runs configuring/adding new services.
  • Conducts ongoing performance tuning, hardware upgrades, and resource, and optimization, as required.
  • Conducts CPU configuration, memory and disk partitions, as required.
  • Performs regular security monitoring to identify vulnerabilities and any possible intrusions.
  • Sets up and manages frequent and regular (at least daily) backup operations, ensuring that all required file systems and system data are successfully backed up to appropriate media, plus creates recovery tapes or disks; performs regular file archive and purge, as necessary.


Required Qualifications
  • TS SCI CI poly
  • Candidate must have 12 years of experience that can be a combination of work history and education. This equates to a Doctorate and 4 years, master's and 6 years, bachelor's and 8 years, associates and 10 years or HS diploma and 12 years.
  • Compliance with Department of Defense (DoD) 8570 Information Assurance Technical (IAT) Level 2.
  • Must be able to process and analyze information and trouble calls submitted by a customer (e.g., system administrator, developer, security specialist), make determinations, provide and implement solutions.
  • Must be able to work with minimal supervision to perform complex technical tasks.
  • Must be able to troubleshoot network routing and router/switches.
  • Build and O&M of Linux RHEL systems, Build and O&M of MS Windows Server systems, Build and O&M of virtual environment that includes virtual servers and virtual routers, Build and O&M Oracle Servers.
  • Build and O&M of multiple Network Management applications, Build and O&M of VCenter which includes the O&M of VM templates, Build and O&M of ESXi hosts, Build and O&M of hardware.
  • Understanding of DoD Risk Management Framework (RMF) information security requirements, standards, and best practices; DIACP compliancy with Retina, DISA STIG and IAVA patch management.
  • Perform multiple tasks concurrently and respond to emergency effectively.
  • Proficient in use of Microsoft Office suite.
  • Increase system administrator efficiency and accuracy via the use of automated tools and scripts, develop system administrator procedures, and conduct system administrator training and skills assessment
  • Conduct capacity and performance analysis, and provides system configuration change and upgrade recommendations.
  • Determine computer user needs; analyze system capabilities and programming techniques and controls.
  • Manage the daily activities of configuration and operation of systems and perform system capacity analysis and planning.


Original Posting:
August 26, 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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

Stay Connected

Stay informed with the latest career tips, industry insights, and company news from Leidos Holding. Subscribe to receive updates and be the first to know about new job opportunities, company developments, and more.

Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

SEARCH LEIDOS HOLDING JOBS

READ CAREERS BLOG

Job Alert Emails

Customize your subscription to receive job alerts and insider tips tailored to your preferences from Leidos Holding. See what exciting and rewarding opportunities await in your professional journey.
Learn more about Leidos Holding

Similar Jobs

More Jobs at Leidos Holding

More Aerospace & Defense Jobs

Find similar System Administrator jobs: