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Linux System Administrator with Security Clearance
Set of XSan Antonio, TX🇺🇸United StatesPosted 28 Jul 2026
Quick Overview
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior
Job Description
WE ARE HIRING OWNERS
Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership Because who you work with matters.
________________________________________________________________________ Responsibilities: * Provide implementation, troubleshooting, maintenance, and operational support for IT systems.
* Provide Tier 1 and Tier 2 support, including problem identification, diagnosis, escalation, and resolution.
* Configure, administer, monitor, and maintain Linux operating systems.
* Support servers, storage, networks, mobile devices, and other IT infrastructure.
* Install, configure, patch, and troubleshoot operating systems and network components.
* Monitor system performance, optimize resource utilization, and support capacity planning.
* Troubleshoot complex hardware, software, operating system, and network issues.
* Provide technical analysis and status updates to management and internal customers.
* Support hardware and dispatch system issues through resolution.
* Implement system enhancements to improve reliability, availability, and performance.
Required Skills:
* 10+ years of experience as a System Administrator supporting programs and contracts of similar scope, type, and complexity.
* Experience administering and troubleshooting Linux operating systems.
* Experience supporting enterprise IT infrastructure, including servers, storage, networks, and end-user systems.
* Strong troubleshooting, problem-solving, and communication skills.
* Ability to work independently and effectively in a mission-focused environment.
Experience/Education:
Bachelor’s degree in a technical discipline from an accredited college or university.
Five (5) additional years of System Administration experience may be substituted for a Bachelor’s degree.
Ten (10) years of relevant System Administration experience is required. Clearance:
TS/SCI clearance with polygraph is required.
Total Compensation Package We offer a comprehensive compensation package designed to support your well-being and professional growth. Our competitive base salary is complemented by an extensive benefits program, including: * Health, Dental, and Vision Insurance: Comprehensive coverage to keep you and your family healthy.
* Life and Disability Insurance: Peace of mind with financial protection for you and your loved ones.
* 401(k) Plan: No personal investment required to benefit from a generous employer contribution, allowing you to maximize your take-home pay.
* Paid Time Off: Enjoy time away from work to recharge.
* Technology Refresh: Upgrade your devices regularly, or opt for a year-end bonus if you don’t need new tech.
* Training and Professional Development: A $5,250 annual budget for ongoing education, certifications, and professional memberships. Or use this annual benefit to repay a student loan tax-free.
For a full overview of our benefits, please visit our benefits tab. Additional Perks and Benefits * Stock Plan: Become an equity owner with a yearly stock grant—let’s build the future together.
* Flex Leave and Exchange Plan: Take up to 8 weeks off for a strong work-life balance or sell back unused time for double the value!
* Virtual Office Compensation: Monthly reimbursement for cell phone and internet services.
* Fringe Benefit Mall: Choose from perks like Uber rides, a beer of the month club, Amazon Prime, and Hello Fresh—whatever suits you best!
* Profit-Sharing Cash Bonus: Share in the company’s success with an end-of-year cash bonus.
* Referral Bonus: Help us grow by bringing in top talent and earn a bonus for each successful referral.
Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership Because who you work with matters.
________________________________________________________________________ Responsibilities: * Provide implementation, troubleshooting, maintenance, and operational support for IT systems.
* Provide Tier 1 and Tier 2 support, including problem identification, diagnosis, escalation, and resolution.
* Configure, administer, monitor, and maintain Linux operating systems.
* Support servers, storage, networks, mobile devices, and other IT infrastructure.
* Install, configure, patch, and troubleshoot operating systems and network components.
* Monitor system performance, optimize resource utilization, and support capacity planning.
* Troubleshoot complex hardware, software, operating system, and network issues.
* Provide technical analysis and status updates to management and internal customers.
* Support hardware and dispatch system issues through resolution.
* Implement system enhancements to improve reliability, availability, and performance.
Required Skills:
* 10+ years of experience as a System Administrator supporting programs and contracts of similar scope, type, and complexity.
* Experience administering and troubleshooting Linux operating systems.
* Experience supporting enterprise IT infrastructure, including servers, storage, networks, and end-user systems.
* Strong troubleshooting, problem-solving, and communication skills.
* Ability to work independently and effectively in a mission-focused environment.
Experience/Education:
Bachelor’s degree in a technical discipline from an accredited college or university.
Five (5) additional years of System Administration experience may be substituted for a Bachelor’s degree.
Ten (10) years of relevant System Administration experience is required. Clearance:
TS/SCI clearance with polygraph is required.
Total Compensation Package We offer a comprehensive compensation package designed to support your well-being and professional growth. Our competitive base salary is complemented by an extensive benefits program, including: * Health, Dental, and Vision Insurance: Comprehensive coverage to keep you and your family healthy.
* Life and Disability Insurance: Peace of mind with financial protection for you and your loved ones.
* 401(k) Plan: No personal investment required to benefit from a generous employer contribution, allowing you to maximize your take-home pay.
* Paid Time Off: Enjoy time away from work to recharge.
* Technology Refresh: Upgrade your devices regularly, or opt for a year-end bonus if you don’t need new tech.
* Training and Professional Development: A $5,250 annual budget for ongoing education, certifications, and professional memberships. Or use this annual benefit to repay a student loan tax-free.
For a full overview of our benefits, please visit our benefits tab. Additional Perks and Benefits * Stock Plan: Become an equity owner with a yearly stock grant—let’s build the future together.
* Flex Leave and Exchange Plan: Take up to 8 weeks off for a strong work-life balance or sell back unused time for double the value!
* Virtual Office Compensation: Monthly reimbursement for cell phone and internet services.
* Fringe Benefit Mall: Choose from perks like Uber rides, a beer of the month club, Amazon Prime, and Hello Fresh—whatever suits you best!
* Profit-Sharing Cash Bonus: Share in the company’s success with an end-of-year cash bonus.
* Referral Bonus: Help us grow by bringing in top talent and earn a bonus for each successful referral.
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