Principal Software Engineer
BAE Systems · Merrimack, NH · Engineering & Technology
About this role
BAE Systems is hiring a principal-level Software Engineer based in Merrimack, NH. The posting calls out experience with C++, C, Git, CI/CD. Compensation is listed at $118,095–$200,762 per year.
- Role
- Software Engineer
- Function
- software engineering
- Level
- principal
- Track
- Tech leadership
- Employment
- Full-time
- Location
- Merrimack, NH
- Department
- Engineering & Technology
- Posted
- Apr 13, 2026
More roles at BAE Systems
Job description
from BAE Systems careersJob Description Join BAE Systems’ Countermeasure Electromagnetic Attack Solutions (CEMA) business area and lead the development of the next ‑ generation RF software for the P ‑ 8A Poseidon Self ‑ Protection (P8 ‑ ASP) program. Building on a $95 million U.S. Navy contract, which is BAE’s electronic ‑ warfare solution that detects, exploits, and counters advanced missile threats, you will help shape a capability of strategic importance. As a member of the software development team, you will help evolve the RF ‑ interface CSCI and integrate the 3U Direct Digital IRAD capability, delivering the performance and reliability needed to protect the Poseidon crew and enable operations in contested environments. In this software engineering role you will design, implement, and unit ‑ test high ‑ performance RF signal ‑ processing algorithms using modern C++ on Linux, and develop supporting tools and scripts in Python for simulation, data analysis, and verification. You will work closely with systems, hardware, and test engineers to translate requirements into clean, maintainable code, and you will participate in code reviews, static ‑ analysis, and continuous ‑ integration processes to ensure software quality and airworthiness compliance. Experience with real ‑ time processing, hardware ‑ in ‑ the…