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# Sr. System Administrator - (ONSITE) COMPANY WILL SPONSOR

- **Company:** RTX
- **Location:** Andover, MA, United States
- **Experience:** Expert
- **Salary:** $68,900.0 - $131,100.0
- **Contract:** Contract
- **Skills:** Microsoft Windows, CompTIA Security+, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), VMware ESX Servers, System Center Configuration Manager, Windows Servers, Red Hat Enterprise Linux, VMware VSphere, Data Storage Technologies, Virtual Computing, Vcenter, National Industrial Security Program Operating Manual (NISPOM), Wsus, Vmware
- **Published:** September 15, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9162402/sr-system-administrator-onsite-company-will-sponsor

## About the Role

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, * Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment.

 * Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
 * Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
 * Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within a reasonable amount of time
 * Full time 100% Onsite position.

Qualifications You Must Have

 * Typically requires a University degree or equivalent experience and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field.
 * Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
 * Experience with installation, configuration, and administration of Windows and or /Linux operating systems.
 * Experience with Server architectures and troubleshooting methods.
 * Must be able to develop solutions and documentation to a variety of technical problems.

Qualifications We Prefer

 * Linux Red Hat experience
 * Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification).
 * Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF, data storage, NAS, and SAN technologies and solutions.
 * Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods.
 * Experience with Microsoft WSUS, MECM, and/or Exchange.



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