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# Sr. System Administrator (onsite)

- **Company:** RTX
- **Location:** Andover, MA, United States
- **Experience:** Expert
- **Salary:** $68,900.0 - $131,100.0
- **Contract:** Permanent 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:** July 1, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MA-ANDOVER-AN1--350-Lowell-St--AN1-ESSEX-BLDG/Sr-System-Administrator---onsite-_01855440

## About the Role

Active and transferable 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, * Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat 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.
 * Active and transferable U.S. government issued Secret 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.

Qualifications We Prefer:

 * Linus RedHat 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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