Linux System Administrator - Service Desk in San Antonio, Texas at Mission Systems

Linux System Administrator - Service Desk

ID: 2026-73102
US-TX-San Antonio
Required Clearance: TS/SCI with Polygraph, obtainable within reasonable time based on requirements
Posted Date: 6/17/2026
Category: Engineering-Other
Employment Type: Full Time
Hiring Company: General Dynamics Mission Systems, Inc.
Basic Qualifications

Master's degree. Bachelor's degree in a specialized area or equivalent relevant experience is required; plus, a minimum of 2 years of relevant experience.

CLEARANCE REQUIREMENTS:
Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Responsibilities for this Position

Join the dynamic SPRINT Next Team as a Linux Systems Administrator - Service Desk specializing in Red Hat and PitBull technologies. PitBull is a highly secure operating system designed for environments that require strict security controls and data protection.

What You’ll Experience:

• Hands-on work with RedHat Linux, system/server builds, and advanced troubleshooting.
• Engaging with cross-domain and boundary device solutions.
• Providing top-notch customer service.
• Managing enterprise-level solutions and re-imaging workstations, servers, and peripherals.

What You Bring to the Table:

• Strong experience with Red Hat LINUX command line administration.
• Proficiency in OS and hardware/software troubleshooting.
• Ability to apply Security Technical Implementation Guides (STIGs) and address vulnerabilities.
• Active Top Secret with SCI eligibility and be willing to obtain a Polygraph within a reasonable time following program onboarding

What Sets You Apart:

• Expertise in re-imaging both physical and virtual servers.
• Exceptional attention to detail and problem-solving skills.
• A proactive and collaborative approach to team projects.
• Strong customer service orientation.

Our Commitment to You:

• Continuous learning and development opportunities; career progression within and across programs.
• Working with award-winning teams on impactful research projects.
• Competitive benefits including 401k matching, flex time off, healthcare, and wellness programs.
• A supportive and engaging work environment with various employee resource groups.

A minimum of a IAT Level II (DoD 8570/8140.01) certification with CE is required at time of hire: e.g. CompTIA Security+, GSEC, SSCP, and CCNA-Security

Workplace Options: This role is fully on-site at the San Antonio Texas location.

Salary Note

This estimate represents the typical salary range for this position based on experience and other factors (geographic location, etc.). Actual pay may vary. This job posting will remain open until the position is filled.

Combined Salary Range

USD $85,239.00 - USD $92,231.00 /Yr.

Company Overview

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

#GDMS-US#