> Markdown version of [/jobs/ext/686835-sentinel-principal-sr-principal-systems-test-engineer-1835](https://www.wearedevelopers.com/jobs/ext/686835-sentinel-principal-sr-principal-systems-test-engineer-1835). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sentinel - Principal / Sr Principal Systems Test Engineer - 1835 - **Company:** Northrop Grumman - **Location:** Roy, UT, United States - **Experience:** Expert - **Salary:** $89,400.0 - $134,200.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Configuration Management, Complex Networks, Custom Software, IT Management, Python (Programming Language), Windows PowerShell, Real-Time Operating Systems, Red Hat Enterprise Linux, SAP (Applications), Shell Script, Verification and Validation (Software), VCloud, VMware VSphere, Backup and Restore, Scripting, Juniper, Information Technology, Cisco, User Administration - **Published:** June 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9001144/sentinel-principal-sr-principal-systems-test-engineer-1835 ## About the Role This requisition may be fulfilled at either the Principal Systems Test Engineer (T-03) level or Sr. Principal Systems Test Engineer (T-04) level. * Principal Engineer Systems Test: Bachelors in Science with 5 years of experience, Masters with 3 years of experience or PhD with 1 year of experience. An additional 4 years of experience can be considered in lieu of a degree. * Sr. Principal Engineer Test: Bachelors of Science with 8 years of experience, Masters with 6 years of experience or PhD with 4 year of experience. An additional 4 years of experience can be considered in lieu of a degree. * Must have an active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business need. * 3+ years of experience working with lab environments/processes (Foreign Object Elimination, Electro-Static Discharge, Configuration Management) * 3+ years of experience integrating COTS, GOTS and custom software in a security constrained environment * 3+ years of experience leading, planning and executing hardware/software product integration, documenting discrepancies, and analyzing mission performance. * 3+ years of experience on engineering or administration experience for Cisco/Juniper networks, RHEL, or Windows OS. Preferred Qualifications: * Ability to troubleshoot system using built in OS functionality and system logs. * Perform OS tuning, understand networking, perform user management, perform security hardening, and review OS logs as needed and perform system backups. * Experience with scripting, particularly in shell scripting. Any experience with SH and CSH variants, Python, or PowerShell would be helpful. * Experience with the administration and operations of lab or test environments * Computer system performance analysis. * Experience with vSphere and/or VMware Cloud Foundation. * Experience with operation, development, or testing of RTOSs. ## Description * Maintain smooth operation of multi-user computer systems, including coordination with network, software, and system engineers, project managers, end users, and customer and IT management * Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management * Integration of IP based devices into networks architecture. Will also support configuration, troubleshooting of devices / network * Work within and across teams to support and coordinate daily integration activities * Execute root cause analysis to troubleshoot and resolve complex network and system issues * Coordinate integrated testing activities * Oversee test activities in support or requirement verification and validation. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers)