Job Description

Job Description

Description

Are you a tech enthusiast with a passion for ensuring the seamless operation of classified environments?

Leidos Digital Modernization CIS Team is looking for a skilled System Administrator to join our team. In this role, you'll play a key part in designing, maintaining, and enhancing our architecture, ensuring compliance with information assurance requirements, and guaranteeing continuity of operations. Grow your career with us. At Leidos, we recognize the value of having a high-performing workforce and are committed to providing opportunities for employees by encouraging career growth and movement across the enterprise.  We view career development as a partnership between employees, managers, and the company with a focus on building skills and experiences through internal mobility. To support career development, we offer a variety of resources in addition to training and educational opportunities within an inclusive environment.

Work Location: Work will be performed on site in Huntsville, AL.

What We Value:
We're not just looking for technical expertise; we value a positive attitude, adaptability to changing priorities, and a commitment to getting the job done. Our ideal candidate is a reliable troubleshooter, adept at handling multiple priorities with excellent coping skills. Whether working independently or collaboratively, you're self-managed and customer focused. 

Primary Responsibilities:

• Set up and maintain Windows servers, desktops, and network devices; bonus points for Linux experience.
• Embrace new technologies to meet evolving requirements.
• Contribute to system design, hardware/software implementation, and overall infrastructure support.
• Document system configurations and baselines.
• Provide backup and recovery services while managing file systems and disk space.
• Utilize desktop and server virtualization within Hyper-V, VMWare vSphere and ESXI.
• Handle ticket load and prioritization of daily on-site support and troubleshooting.
• Work on multiple projects, either as a team member or occasionally leading a project.
• Manage user accounts and access control in a domain or stand-alone environment.
• Ensure the proper marking, handling, and storage of classified materials.
• Troubleshoot and repair Windows operating system issues on server and workstations.

Basic Qualifications:

• Bachelor's Degree and 4+ years' relevant experience; equivalent work experience may be considered in lieu of degree.
• DoD Directive 8570 / 8140 Information Assurance Technical (IAT) Level II certification. (Security+ CE, CCNA Security, CySA+, GICSP, GSEC, CND, SSCP)
• SDREN and/or SIPR experience.
• Strong written and verbal communication skills.
• Ability to interface effectively with security agencies, customers, and management.
• Manage multiple networks in a dynamic, demanding environment.
• Familiarity with Risk Management Framework requirements for Windows and Linux systems.
• Must have an active DoD Secret clearance and ability to obtain Top-Secret clearance.

Preferred Qualifications:

• Previous experience in a classified Collateral environment / SAP / SCI /.
• System Administrator experience in a similarly sized organization.
• Understanding of network concepts, Type 1 encryption devices (e.g., TACLANE), and cybersecurity tools.
• Knowledge of securely configuring network equipment (switches and firewalls).

At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”

If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.

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.

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

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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

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 at -benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

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.

Job Tags

Similar Jobs