Senior Linux Administrator (TS/SCI Poly)

Probity Inc.; Chantilly (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

Probity Inc. is seeking an experienced Linux Systems Engineer to join the team in Chantilly, VA.

The role involves maintaining and improving the Sponsor’s Linux software and hardware environment, ensuring OS integration with hardware and applications, and keeping servers running securely. The successful candidate will plan, test, install, and maintain OS versions, harden servers, apply patches, and collaborate with application development and network teams.

Qualifications

• Minimum of 10 years configuring and maintaining Linux servers.
• Bachelor’s Degree in Computer Science, Information Systems, Engineering, or related discipline or 10 years of related experience substituted for education.
• Experience with complex, intertwined systems and data flows.
• Experience with Centrify, LDAP, and Active Directory.
• Experience applying security patches in a Linux environment.
• Strong shell scripting experience.
• Ability to manage a large, complex server environment.
• TS/SCI Polygraph clearance required.

Responsibilities

• Plan, test, install, integrate, and maintain Linux OS versions.
• Build and harden Linux servers and establish configuration baselines.
• Apply security patches in a timely manner and support patch management plans.
• Develop test plans and procedures.
• Replace server hardware components as needed.
• Test and integrate software and hardware.
• Manage OS lifecycles and environments.
• Design interfaces to external systems.
• Troubleshoot OS problems and collaborate with other teams.
• Provide technical support on integration requirements for the OS.
• Maintain documentation on OS configurations and responsibilities.

Skills

Shell scripting

Linux server management

Security patches

Centrify/LDAP/AD

Communication skills

Team collaboration

Security clearance

Education

Bachelor’s Degree in CS/IS/Engineering

10 years of related technical experience substitute for education

Tools

Ansible

Job description

Probity Inc. is seeking an experienced Linux Systems Engineer to join the team in Chantilly, VA.

The role involves maintaining and improving the Sponsor’s Linux software and hardware environment, ensuring OS integration with hardware and applications, and keeping servers running securely. The successful candidate will plan, test, install, and maintain OS versions, harden servers, apply patches, and collaborate with application development and network teams.