Senior Linux Administrator (TS/SCI w/ Polygraph)

MKS2 Technologies, LLC, an award-winning high growth small business, creates innovative and customer-centric technology solutions in the areas of Cyber Security, Instructional Design and Training, Software Engineering and IT Support Services to improve the security and well-being of our clients. Our commitment to excellence and our “Mission First” orientation has resulted in steady growth and an expanding client base across government agencies. We have employees nationwide and for the past three consecutive years were named one of the fastest growing Veteran-owned companies in the nation. Please take a moment to browse through our website and learn more about what it means to serve with MKS2.

Job Title:
Linux System Administrator – TS/SCI with Poly Required (CI or FS)

Location:
Aurora, CO (Onsite)

Schedule:
Full-time | 8:00 AM – 5:00 PM | Occasional after-hours and on-call support

What You Will Do

We are hiring a Linux System Administrator to support a classified program in a secure environment. In this role, you’ll be responsible for:

• Building, maintaining, and securing IT systems

• Directly supporting mission-critical customer capabilities

• Collaborating with developers and system engineers to troubleshoot issues and implement solutions

• Supporting after-hours maintenance and on-call rotations

• Performing hardware installations (must be able to lift up to 35 lbs)

• Occasionally traveling to support installation activities

This is an onsite position.

Qualifications You Must Have

• Education & Experience:

  • Bachelor’s degree with 5+ years of relevant experience OR

  • Master’s degree with 3+ years of relevant experience

• Security Clearance:

  • Active TS/SCI with polygraph required at time of hire

  • U.S. Citizenship required

• Certifications:

  • DoD 8570 IAT Level II (or higher) certification required

  • Acceptable certs: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, or CND

• Technical Experience:

  • Proficient in administering Red Hat Linux systems

    • Includes patching, RPM creation, performance tuning, networking, LDAP-based user management, and security hardening

Qualifications We Prefer

• Experience with automation tools like Terraform, Ansible, Chef

• Scripting proficiency in Bash and Python

• Experience managing Windows-based systems

• Familiarity with CI/CD pipelines (e.g., Jenkins, Artifactory)

• Experience with Amazon Web Services (AWS) deployments and administration

• Ability to work independently and troubleshoot system-level issues efficiently

Work Environment:
This is a full-time, onsite role based in Aurora, CO. Some after-hours and travel support will be required.

Diversity creates a healthier atmosphere: MKS2 Technologies is proud to be an Equal Employment Opportunity / Affirmative Action employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, protected veteran status, disability status, sexual orientation, gender identity or expression, marital status, genetic information, or any other characteristic protected by law.