> Markdown version of [/jobs/ext/1314054-senior-principal-test-design-software-engineer](https://www.wearedevelopers.com/jobs/ext/1314054-senior-principal-test-design-software-engineer). 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).

---

# Senior Principal Test Design Software Engineer

- **Company:** Northrop Grumman
- **Location:** Waynesboro, VA, United States
- **Experience:** Expert
- **Salary:** $122,800.0 - $184,200.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, C Sharp (Programming Language), C++ (Programming Language), Device Drivers, Firmware, Field-Programmable Gate Array (FPGA), Python (Programming Language), Labwindows/Cvi, C-Based Programming Languages, Systems Development Life Cycle, Real-Time Operating Systems, Rslogix, SAP (Applications), Break Fix, SC Clearance, Win CC
- **Published:** July 17, 2026
- **Apply:** https://www.disabledperson.com/jobs/73700377-senior-principal-test-design-software-engineer

## About the Role

* Bachelor's degree with 8 years of experience, master's degree with 6 years of experience or Ph.D. with 4 years of experience in Science, Technology, Engineering, Mathematics, or related technical fields; an additional 4 years of experience may be considered in lieu of a degree.
 * U.S Citizenship is required.
 * Ability to obtain/maintain an active U.S. Government Secret Clearance
 * Ability to obtain Special Program Access (SAP).
 * Experience with SDLC
 * Experience working in an Agile Environment
 * Experience with software languages C, C#, C++, Python
 * Experience with SW integration
 * Effective verbal and written communication, * Advanced degree in Engineering or related STEM discipline
 * Experience with hands-on troubleshooting
 * Experience with PLC/HMI Software (e.g., RS View, RS Logix 5000).
 * Experience with Hardware Driver Development
 * Experience with FPGA programming
 * Firmware design experience a plus
 * Experience with RTOS
 * Experience with LabWindows CVI, or AMAX a huge plus
 * Technical Lead experience
 * Active Secret clearance



## Related Videos

- [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine)
- [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips)
- [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)
- [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api)
- [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies)
- [When Agents Meet Legacy: Never Change a Running System](https://www.wearedevelopers.com/videos/100320-when-agents-meet-legacy-never-change-a-running-system)

## Related Articles

- [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)
- [What Jobs Can You Get with a Software Engineering Degree?](https://www.wearedevelopers.com/magazine/398-what-jobs-can-you-get-with-a-software-engineering-degree)
- [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)
- [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries)