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# Sr. Principal Software Engineer - Level 4 (AHT)

- **Company:** Northrop Grumman
- **Location:** Redondo Beach, CA, United States
- **Experience:** Expert
- **Salary:** $142,200.0 - $213,400.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Nvidia CUDA, Linux, MATLAB, Real-Time Operating Systems, Software Engineering, VxWorks, Graphics Processing Unit (GPU), Real Time Systems, SC Clearance
- **Published:** September 3, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9137411/sr-principal-software-engineer-level-4-aht

## About the Role

* Bachelor's degree in a STEM discipline with 8+ years of software development experience; Master's degree in a STEM discipline with 6+ years of software development experience; Ph.D. in a STEM discipline with 4+ years of software development experience.
 * Must be able and willing to obtain and maintain an active U.S. Government Secret clearance.
 * Strong proficiency in C and C++ development.
 * Extensive experience with VxWorks Real-Time Operating System.
 * Prior hands-on experience working with Graphics Processing Units (GPUs) and/or CUDA (Compute Unified Device Architecture), including developing, optimizing, or troubleshooting GPU-accelerated applications., * Prior experience supporting Directed Energy programs
 * Image processing experience
 * Linux/Red Hawk Linux experience
 * Experience with low-level development
 * Experience with Curtis-Wright VPX processors
 * Experience with Acromag AcroPack interface VPX cards
 * Prior experience with MATLAB
 * Experience with adaptive optics processing

## Description

* Support the architecture, development, and lifecycle management of embedded and real-time systems.

 * Collaborate with multidisciplinary teams-including Systems Engineering, Digital Engineering, Hardware, and Integration & Test-within an Agile development environment.

 * Analyze system capabilities to troubleshoot and resolve issues related to program intent, output requirements, data acquisition, programming methods, and control strategies.

 * Work in a fast-paced lab environment with rapid development cycles.

*Please be aware that this position will be contingent upon capturing program award(s), obtaining and maintaining customer and/or business funding prior to start date.*