At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Northrop Grumman Defense Systems is seeking a self‑motivated, proactive Principal Software Engineer to join the medium‑caliber Bushmaster gun controller product line. The role offers a high‑exposure, fast‑paced environment where hands‑on technical challenges, problem‑solving, and cross‑department collaboration are the norm. The engineer will be responsible for delivering high‑quality, innovative software that meets system requirements, coding standards, and technical design specifications while supporting the full product lifecycle—from requirements through integration, test, and verification.