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Linux System Administrator - Set of X with Security Clearance
Set of XAnnapolis Junction, MD🇺🇸United StatesPosted 6 Aug 2026
Quick Overview
Salary
$120k - $240k/yr
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior
Job Description
All positions require an active clearance.
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.
________________________________________________________________________
The candidate will participate in a new long-term effort to consolidate a diverse set of systems into a new cohesive solution that improves system manageability and security, while providing enhanced capability with a strong focus on improved user experience. The candidate will be a part of the early stages of this high visibility effort and help build a sound foundation to ensure the project’s continued success. Responsibilities: * Work with current owners and administrators to understand existing systems, requirements, and problem areas.
* Provide direct input for organization long-term efforts and visions for future architecture and design.
* Provide system administration functions to fix critical problems or implement stop-gap solutions as part of the transition to the new consolidated architecture.
* Translate existing requirements and use-cases of current systems into scalable and supportable long-term solutions.
* Implement and support final solution(s).
* Participate in frequent internal engineering and strategy team meetings.
* Build direct customer relationships to improve organizational feedback loop.
Required Skills:
* Extensive RedHat (RHEL), CentOs Linux, and/or UNIX experience.
* Experience managing NiFi data flows.
* Experience with VMWare or associate technologies (ESX, NSX, VSAN, KVM, Nutanix or other).
* Ansible or other automation platform/methodology experience.
* System scanning/hardening – STIGS/CIS Compliance.
* Proficiency installing, hardening, patching, and backup/restoration of Linux systems.
* Understanding of system monitoring, health/status, and best practice security methodologies.
* Familiarity with Windows Server environments
Desired Skills:
* RHCSA (Red Hat Certified System Administrator) and/or RHCE (Red Hat Certified Engineer) certification. Experience/Education:
5+ experience in System Administration
Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor’s degree. 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. Salary Range: $120,000 - $240,000 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.
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.
________________________________________________________________________
The candidate will participate in a new long-term effort to consolidate a diverse set of systems into a new cohesive solution that improves system manageability and security, while providing enhanced capability with a strong focus on improved user experience. The candidate will be a part of the early stages of this high visibility effort and help build a sound foundation to ensure the project’s continued success. Responsibilities: * Work with current owners and administrators to understand existing systems, requirements, and problem areas.
* Provide direct input for organization long-term efforts and visions for future architecture and design.
* Provide system administration functions to fix critical problems or implement stop-gap solutions as part of the transition to the new consolidated architecture.
* Translate existing requirements and use-cases of current systems into scalable and supportable long-term solutions.
* Implement and support final solution(s).
* Participate in frequent internal engineering and strategy team meetings.
* Build direct customer relationships to improve organizational feedback loop.
Required Skills:
* Extensive RedHat (RHEL), CentOs Linux, and/or UNIX experience.
* Experience managing NiFi data flows.
* Experience with VMWare or associate technologies (ESX, NSX, VSAN, KVM, Nutanix or other).
* Ansible or other automation platform/methodology experience.
* System scanning/hardening – STIGS/CIS Compliance.
* Proficiency installing, hardening, patching, and backup/restoration of Linux systems.
* Understanding of system monitoring, health/status, and best practice security methodologies.
* Familiarity with Windows Server environments
Desired Skills:
* RHCSA (Red Hat Certified System Administrator) and/or RHCE (Red Hat Certified Engineer) certification. Experience/Education:
5+ experience in System Administration
Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor’s degree. 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. Salary Range: $120,000 - $240,000 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.
Skills
Ansible
VMware
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