A leading technology firm in Greater London is seeking a Principal Software Engineer to design, develop, and maintain critical infrastructure. This role involves ownership of team deliverables, collaboration with external partners, and mentoring engineers. Candidates must have strong capabilities in backend and frontend development, design scalable systems, and familiarity with DevOps tools. The position offers competitive salary options and an inclusive work environment aimed at professional growth and wellbeing. #J-18808-Ljbffr The Principal Software Engineer — Tech Lead & Impact role at Northrop Grumman is now open for applications in Greater London, England, United Kingdom. We are looking to fill the Principal Software Engineer — Tech Lead & Impact position at Northrop Grumman in Greater London, England, United Kingdom. Join us at Northrop Grumman as our next Principal Software Engineer — Tech Lead & Impact in Greater London, England, United Kingdom.