Senior Infrastructure Systems Admin Engineer; Onsite

Job Summary

Senior Infrastructure Systems Administration Engineer – key contributor to supporting our government Customer’s program platform environment operation and design. This role supports a Linux‑based environment with hands‑on experience in COTS implementation, systems administration, network systems configuration, systems security implementation, and private cloud environments using tools such as VMware or Amazon Web Services.

• Support the hardware infrastructure, including systems administration, networks, and overall system security posture for complex on‑premises compute environments that form the backbone for operational deployment of a critical, strategic national asset.
• Communicate any risks or issues involving system performance, availability, or security.
• Work processes with the team to address fixes while ensuring that all changes follow the project’s change‑management processes.
• Support system configuration and deployment.
• Assist with system networking.
• Support COTS product installations.
• Provide hands‑on experience with Linux and/or Windows system administration.
• Collaborate with the systems security team.
• Obtain CompTIA Security+ certification within 90 days.

• BA/BS degree and 5+ years’ experience in STEM with emphasis in Computer Science, Computer Engineering, or Information Technology.
• Active and transferable TS/SCI with CI poly U.S. government‑issued security clearance required prior to start date. U.S. citizenship required.
• Experience with agile development methodologies.
• Experience in daily system operations and maintenance and use of administration tools.
• Experience in network designs and security postures.
• Experience in SAN/NAS structures.
• Experience with implementing DISA STIGs.

• Experience with applications and administration of networks, storage, and virtualization (VMware).
• Experience scripting in Bash, Python, Perl, Ruby, or others.
• Experience with command line.
• Experience in Java, Jenkins.
• Experience in system live operations.
• Experience in Dev Ops/Dev Sec Ops  system development.
• Experience with implementing private cloud environments.
• Experience with automation tools such as Chef, Puppet, Ansible, Salt Stack.
• Experience with containerization (Kubernetes, Docker, Rancher).

We offer a total rewards package that includes compensation, healthcare, wellness, retirement, and work/life benefits; career development and recognition programs. Benefits include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance, and child/adult backup care.

RTX is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.