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RTX · MCKINNEY, TX, US

# Sr. Principal Systems Administrator, WINDOWS (ONSITE)

MCKINNEY, TX, US On-site Full-time Senior individual contributor IT & Infrastructure 

Listed on RTX’s official careers site. Posted October 30, 2026. Check that it is still open and apply there.
[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-TX-MCKINNEY-513WC--2501-W-University-Dr--WING-C-BLDG/Sr-Principal-Systems-Administrator--WINDOWS--ONSITE-_01885501)

[OpenNash Jobs](https://jobs.opennash.com/) / [RTX](https://jobs.opennash.com/companies/rtx/) / Sr. Principal Systems Administrator, WINDOWS (ONSITE)

The employer’s listing has no description we could read. See it on their site.

## At a glance
- Posted by the employer: Oct 30, 2026
- First seen by OpenNash: Nov 11, 2026
- Last checked: Nov 11, 2026
- Listed for: 12 days
- Location: MCKINNEY, TX, US
- Work arrangement: On-site
- Employment type: Full-time[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-TX-MCKINNEY-513WC--2501-W-University-Dr--WING-C-BLDG/Sr-Principal-Systems-Administrator--WINDOWS--ONSITE-_01885501)

## Hiring at RTX
- Open jobs: 4,634
- New in the last 7 days: After two weekly collections
- Tracked since: Jul 14, 2026

[All RTX jobs](https://jobs.opennash.com/companies/rtx/) · [Weekly hiring report](/reports/hiring/)

## More jobs at RTX

### [Sr. System Administrator](https://jobs.opennash.com/companies/rtx/jobs/33ea875b30e1c10b71d0/)

MCKINNEY, TX, US

### [Systems Engineer II – Digital Engineering / MBSE](https://jobs.opennash.com/companies/rtx/jobs/21a65aa7179a1782b9c5/)

MCKINNEY, TX, US

### [Sr. Windows Systems Administrator- Will sponsor a clearance](https://jobs.opennash.com/companies/rtx/jobs/43059ff592c908f95912/)

### [Systems Administrator (ISSA) (PWE)(Onsite)](https://jobs.opennash.com/companies/rtx/jobs/588e67ea0b709119702a/)

CEDAR RAPIDS, IA, US

### [Systems Administrator (PWE) (ISSA) (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/ab5745597a21bfd39637/)

CEDAR RAPIDS, IA, US

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### [Windows Systems Administrator - SECRET Clearance](https://jobs.opennash.com/companies/ntt/jobs/64c0617b41073649a198/)

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Dates come from the employer where stated; “first seen” and “last checked” are our own observations.

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