Principal Windows Systems Administrator - Top Secret required

Prattwhitney; El Segundo (CA); On-site; USD 95,500 - 181,700; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

Short-term disability

Long-term disability

401(k) match

Flexible spending accounts

Flexible work schedules

Employee assistance program

Parental leave

Paid time off

Holidays

Relocation assistance

Job summary

RTX in El Segundo, CA seeks a Principal Windows Systems Administrator to manage Windows and Linux environments onsite. You will lead storage appliances, coordinate with cybersecurity, and document complex IT processes while maintaining strict DoD/RMF controls. A Top Secret clearance and US citizenship are required.

Salary ranges reflect government-adjacent compensation and benefits. The role demands hands-on administration of storage, backups, virtualization, and security practices with

Qualifications

• Bachelor’s degree with 5+ years of relevant experience or Master’s with 3+ years.
• Active Top Secret clearance required prior to start date.
• Experience administering, maintaining and troubleshooting storage appliances (NetApp, iSCSI, NAS, SAN).
• Experience administering backups (Veritas NetBackup, BackupExec, Veeam).
• VMware virtualization experience (VDS, hardening).
• Microsoft Windows administration experience.
• Preferred: Exchange/SmarterMail, Fabric switches, Linux, Splunk, Nessus, Symantec, SCCM, Visio diagramming, and knowledge of NISPOM/JAFAN/JSIG/DFARS/DoD/RMF.

Responsibilities

• Provide IT systems administration in a Windows and RHEL environment.
• Collaborate in a fast-paced setting to troubleshoot complex issues.
• Work with Cybersecurity to maintain security requirements and provide documentation.
• Lead all storage appliances in classified networks.
• Troubleshoot IT issues and provide effective resolutions.
• Develop solutions and documentation for technical problems.

Skills

Windows administration

Mentoring

Visio diagramming

Splunk familiarity

Nessus familiarity

SCCM

Linux expertise

Education

Bachelor’s degree + 5+ years

Master’s degree + 3+ years

Tools

NetApp storage

iSCSI

NAS

SAN

Veritas NetBackup

BackupExec

Veeam

VMware vSphere (VDS)

Exchange/SmarterMail

Fabric switches (Cisco/Brocade)

Job description

Principal Windows Systems Administrator – El Segundo, CA

Full‑time, Onsite position requiring U.S. citizenship and an active Top Secret security clearance.

Responsibilities

• Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment.
• Collaborate in a fast‑paced environment, using troubleshooting skills to resolve complex technical issues, including hardware and OS integration.
• Work with Cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures.
• Lead all storage appliances in classified networks.
• Troubleshoot complex IT issues and provide effective resolution.
• Develop solutions and documentation for a variety of technical problems.

Qualifications

• Bachelor’s degree and minimum 5years of relevant experience, or master’s degree and minimum 3years.
• Active, transferable Top Secret security clearance prior to start date.
• Experience administering, maintaining and troubleshooting storage appliances (NetApp, iSCSI, NAS, SAN).
• Experience administering backups (Veritas Netbackup, BackupExec, Veeam).
• Experience with VMware virtualization (VDS, hardening).
• Experience with Microsoft Windows administration.
• Preferred: email platform integration/support (Exchange, SmarterMail), Fabric Cisco or Brocade switches, Linux expertise, familiarity with Splunk, Nessus, Symantec, SCCM, mentoring, Visio diagramming, and knowledge of NISPOM, JAFAN, JSIG, DFARS, and DoD/RMF.

Compensation

Salary range: $95,500 – $181,700 USD.

Benefits

Medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, parental leave, paid time off and holidays. Relocation assistance may be available.

Legal

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action for qualified individuals with a disability and protected veterans in compliance with Section503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.