Senior Linux Systems Administrator

General information

Requisition # R62982 Locations USA-VA-Chantilly Posting Date 08/29/2025 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA

This opportunity allows you to become part of a diverse and innovative team supporting national security priorities in a collaborative, Big Data-driven environment. You will contribute to complex systems involving infrastructure, application development, data science, and advanced analytics—helping to drive impactful solutions in support of critical government missions.
 

As a Senior Linux Systems Administrator, you will help maintain and enhance the Sponsor’s Linux environment alongside a talented team. You will be responsible for the operating system software and its seamless integration with hardware and applications across the organization.
 

Responsibilities include, but are not limited to:

• Planning, testing, installing, integrating, and maintaining new and upgraded versions of the relevant operating systems; building and hardening Linux servers, and establishing configuration baselines
• Applying all appropriate security and firmware patches in a timely manner, and assisting in creating, maintaining, and adhering to the organization’s patch management plans
• Developing test plans and procedures; testing and integrating software and hardware; replacing server hardware components where necessary
• Managing operating system lifecycles and designing interfaces to external systems
• Establishing, developing, testing, staging, and operating environments; troubleshooting operating system problems, and collaborating with other teams (e.g. application development, network, etc.) to resolve problems across the organization
• Researching and resolving operating system problems efficiently and accurately, while adhering to organizational standards and practices; maintaining and updating documentation on the operating system configuration and all other areas of responsibility
• Providing technical support to other teams (e.g. application development, etc.) on requirements for integration into the operating system
• Strong communication and collaboration skills to work effectively and proactively across a large organization of dispersed teams (added this from min quails since it’s not quantifiable).
   

Minimum Qualifications:

• High School Diploma with 7+ years configuring and maintaining Linux