Linux System Administrator

Linux System Administrator Location

San Antonio, TX 78208

TS/SCI Full Poly (Please note this position requires full U.S. Citizenship)

We are looking for a dedicated and skilled Linux Systems Administrator to join our team and play a vital role in managing and maintaining our Linux-based infrastructure. In this position, you will be responsible for deploying, configuring, monitoring, and troubleshooting Linux servers to ensure optimal performance, reliability, and security. You will collaborate with cross‑functional teams to support system integration, implement automation solutions, and enhance system scalability.

If you have a passion for Linux systems, a proactive approach to problem‑solving, and a commitment to delivering high‑quality support, we invite you to apply and help us drive our technical operations forward.

• Linux Administrator
• Systems Administrator
• Dev Ops Engineer
• Unix Administrator
• IT Systems Engineer
• Infrastructure Engineer
• Cloud Systems Administrator
• Server Administrator
• Network Systems Administrator
• etc.

Bachelor's Degree

Computer Science, Information Technology, Cybersecurity, Network Engineering, Systems Engineering, Information Systems, Software Engineering, Computer Engineering, Data Science, etc.

General comment on degrees:
Most contracts allow additional experience (4‑5 years) in lieu of a Bachelor's Degree. Some contracts give 4‑5 years experience credit for a Bachelor's Degree. Some contracts give 2 years experience credit for a Master's Degree. We will work with you to find the right fit.

• Install, configure, and maintain Linux servers
• Monitor system performance and ensure uptime
• Manage user accounts and permissions
• Troubleshoot and resolve server issues
• Implement and maintain security updates
• Create and maintain system documentation

• Proficiency with Linux command‑line tools
• Experience with shell scripting
• Knowledge of server virtualization
• Familiarity with configuration management tools
• Understanding of file systems and storage
• Ability to monitor system logs effectively

• Knowledge of cloud platforms (e.g., AWS, Azure)
• Experience with containerization tools (e.g., Docker)
• Familiarity with CI/CD pipelines
• Understanding of network protocols (e.g., TCP/IP)
• Knowledge of security hardening practices
• Experience with high‑availability environments

• Excellent Salaries
• Flexible Work Schedule
• Cafeteria Style Benefits
• 10% – 401k Matching (Vested Immediately)
• Additional 401k Profit Sharing
• 30 days Paid Leave/Holiday (No Use or Lose!)
• The day off for your birthday
• Medical/Dental/Vision – 100% employee coverage ($1200 allowance – or a bonus)
• HSA/FSA
• AFLAC
• Long Term/Short Term Disability – 100% employee coverage. No cost to you.
• Life Insurance – 100% employee coverage. No cost to you.
• Additional Discretionary Life Insurance
• Paid Training
• No long, wordy reviews with tons of paperwork!!!
• Referral bonus program with recurring annual payments

Email us at  or apply today:

Cymertek is proud to be an Equal Opportunity Employer committed to fostering an inclusive and diverse workplace. We embrace and celebrate differences in our employees, recognizing that a diverse workforce enhances our creativity, innovation, and overall success. At Cymertek, employment decisions are made based on merit, qualifications, and business needs without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by applicable laws.

We believe in creating an environment where all individuals are treated with respect and dignity, and where opportunities for professional growth and advancement are accessible to everyone, regardless of background or identity.