Senior Linux SysAdmin — Cloud, Automation & 24/7 Ops

General Dynamics Information Technology, Inc.; Mississippi; On-site; USD 91,000 - 123,000; Full time

Benefits offered by this job

Health plan options

401(k) with company match

Paid time off and holidays

Job summary

General Dynamics Information Technology, Inc. seeks a Senior Linux System Administrator to manage Linux servers processing data for the National Data Buoy Center at Stennis Space Center, MS. You will ensure 24x7 readiness, patching, security hardening, and cloud integration across on‑premises and AWS environments.

The role emphasizes automation, audits, and collaboration with developers and stakeholders to maintain compliance, optimize performance, and support mission-critical data flows.

Qualifications

• 8+ years of experience installing, configuring, operating, and maintaining IT infrastructure.
• Advanced knowledge of Red Hat Linux, Apache, Tomcat, drivers, vulnerabilities, STIG updates.
• Experience with AWS and migration of Linux systems and cloud environments.
• Programming knowledge in Java, Python, PHP, and Perl.
• Ability to obtain NOAA/NASA background investigation and facility access.
• Excellent communication and ability to work autonomously.

Responsibilities

• Participate in a rotation to provide 24x7x365 on-call support for essential data processing.
• Support IT architecture improvements to ensure continuity of operations.
• Support A&A audits through security patching and POAM requirements; maintain ATO.
• Maintain Linux servers on premises and in AWS; upgrade OS and apply patches.
• Ensure reliable backups and manage server certificates; maintain RHEL subscriptions.
• Communicate maintenance plans and impacts to stakeholders; automate routine tasks.

Skills

Autonomous work style

Strong communication

Education

Bachelor's degree in Computer Science or Information Systems

Tools

Red Hat Enterprise Linux

Apache

Tomcat

AWS

AWS Lambda

EC2

Job description

General Dynamics Information Technology, Inc. seeks a Senior Linux System Administrator to manage Linux servers processing data for the National Data Buoy Center at Stennis Space Center, MS. You will ensure 24x7 readiness, patching, security hardening, and cloud integration across on‑premises and AWS environments.

The role emphasizes automation, audits, and collaboration with developers and stakeholders to maintain compliance, optimize performance, and support mission-critical data flows.