GUI Software Engineer (Contract) Location: Winchester (Hybrid) Contract Length: 6 months Rate: £500 - £700 per day IR35 Status: Inside IR35 Security Clearance: Candidates must already hold SC Clearance To Apply, email: Dominic.barbet@searchability.com The Opportunity An established defence-focused technology programme is seeking an experienced GUI Software Engineer to support the development of advanced, real-time systems. The role sits within a highly technical environment, delivering mission-critical software used to solve complex, real-world problems. You'll work alongside engineers and scientists on cutting-edge systems that are shaping future capability, contributing to long-term, high-impact projects rather than short-term fixes. Key Responsibilities Design and implement efficient, real-time software systems Develop new features within a complex Electronic Warfare software suite Contribute across multiple technical domains, including: Array Processing Communications Sensors Apply new and emerging technologies where appropriate Support high-quality delivery through testing and modern engineering practices Essential Skills & Experience Strong C# experience for user interface development and associated services Strong C++ experience for services and DSP Experience with unit and system testing Familiarity with modern DevOps practices, including: Version control Continuous integration Desirable Skills User interfaces for scientific or technical applications WPF for UI development SQL databases Modern communications technologies (e.g. REST, WebSockets) Exposure to Software Defined Radio (SDR) platforms