We’re seeking a Senior Systems Engineer near Northampton, to help deliver high-performance, mission-critical RF systems. This is a technically hands-on and strategically important role, contributing across the full product lifecycle—from requirements capture and systems architecture to performance analysis and verification. As a Senior Systems Engineer you will work across CommTech’s three key capability areas: Secure Tactical Datalinks Spectrum Monitoring Systems Battlespace Technologies (COMINT, HF DF, C-UAS, C-RCIED) This position involves close collaboration with multidisciplinary teams and demands strong systems thinking and leadership in technical delivery. Key Requirements Minimum 5 years’ experience in a similar role (7 years preferred) Proven expertise in systems engineering across the full development lifecycle Hands-on experience in system architecture, requirements capture, and verification Ability to lead and contribute to technical delivery and produce high-quality documentation Degree in engineering or equivalent professional experience Must be a British citizen or eligible for UK Security Clearance (SC) If you are interested in the Senior Systems Engineer Position position in Northamptonshire, please apply or please email jseress@octagongroup.co.uk