Lead Linux Systems Administrator | TS/SCI | On-Site Tucson

Rincon Research Corporation; Tucson, Northern (AZ, KY); Hybrid; USD 85,000 - 110,000; Full time

Benefits offered by this job

Medical/dental insurance

ESOP

401(k) plan with employer matching

Flexible spending accounts

Life insurance

Job summary

Rincon Research Corporation in Tucson, AZ seeks an experienced Lead Systems Administrator to own the program's computing environment from build through operations. This Linux-focused role requires significant hands-on expertise and leadership across a broad technology stack.

You will coordinate a team, manage OpenShift, identity management, logging, GitLab, Harbor, and oversee patch cycles, compliance, and documentation to meet program requirements. Requires TS/SCI and US citizenship.

Qualifications

• Bachelor's degree in Computer Science, Information Systems, Engineering, or related field, or 8 years of equivalent hands-on experience.
• 8–10 years of relevant experience for senior-level ownership of program computing environments.
• Experience administering Linux systems (RHEL/Rocky/CentOS), including patching and security tooling.

Responsibilities

• Translate program requirements into a working technical design and carry it through implementation.
• Lead design and build of the program's systems, including servers, network, and platform services.
• Monitor and respond to operational and cybersecurity alerts; manage availability, DR, and performance.
• Manage platform services and developer tooling (OpenShift, identity management, logging, GitLab, Harbor).
• Lead patch cycles and hardware lifecycle management; ensure documentation and compliance.

Skills

Linux administration

Security awareness

Team coordination

Networking concepts

Scripting (Python/Bash/PowerShell)

Windows systems knowledge

Education

Bachelor's degree in CS/IS/Engineering or 8 years equivalent hands-on experience

Tools

OpenShift

GitLab

Harbor

Job description

Rincon Research Corporation in Tucson, AZ seeks an experienced Lead Systems Administrator to own the program's computing environment from build through operations. This Linux-focused role requires significant hands-on expertise and leadership across a broad technology stack.

You will coordinate a team, manage OpenShift, identity management, logging, GitLab, Harbor, and oversee patch cycles, compliance, and documentation to meet program requirements. Requires TS/SCI and US citizenship.