Senior Systems Administrator – TS/SCI, Onsite DoD

Prattwhitney; Aurora (CO); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision coverage

Life insurance

401(k) match

Flexible schedules

Job summary

RTX is seeking a Principal Systems Administrator in Aurora, CO to support Windows and Linux environments in a classified DoD program. You will implement, maintain, patch, and troubleshoot core infrastructure and virtualized platforms in a secure, on-site setting.

The role requires a TS/SCI clearance, U.S. citizenship, and experience with AD, Group Policy, and secure configurations. Occasional after-hours support and travel may be required.

Qualifications

• Active DoD TS/SCI clearance required prior to start.
• U.S. citizenship required for security clearance eligibility.
• Experience administering Windows and RHEL servers and securing configurations.

Responsibilities

• Maintain and secure Windows and Linux enterprise environments.
• Patch and vulnerability remediation with STIG/EVAL STIG implementations.
• Manage VMware ESXi/vCenter lifecycle and performance tuning.
• Collaborate with Cyber Security, DevSecOps, Networking, and Storage teams.

Skills

Windows/Linux admin

VMware

Security hardening

Patch management

Education

Bachelor's degree +5 years

Advanced degree +3 years

Tools

VMware vSphere

Active Directory

SCAP/STIG tooling

Job description

RTX is seeking a Principal Systems Administrator in Aurora, CO to support Windows and Linux environments in a classified DoD program. You will implement, maintain, patch, and troubleshoot core infrastructure and virtualized platforms in a secure, on-site setting.

The role requires a TS/SCI clearance, U.S. citizenship, and experience with AD, Group Policy, and secure configurations. Occasional after-hours support and travel may be required.