Matchtech is seeking a Principal Systems Engineer in Basildon for a full-time onsite contract until March 2027. The role involves leading architecture and integration activities, supporting test planning, and working closely with stakeholders to achieve engineering milestones. Candidates should have a degree in a STEM subject and strong skills in numerical analysis and design.

Essential skills include understanding system lifecycles and stakeholder management within a high-pressure environment. Experience with military EW/radar is desirable.