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Posted on Mon, 3 Nov 2025 Job Title: Communications Systems Engineer Location: Gloucester, UK Job Type: Permanent, Full-Time (37.5 hours per week – Four day working week ) Salary: £50,000 – £80,000 DOE Clearance: Due to the nature of the work, current DV or eDV clearance is required. About the Role We are looking for a Communications Systems Engineer to join a specialist engineering team in Gloucester. This role focuses on the design and development of software-defined radio (SDR) systems , including architectures, interfaces, protocols, and network topologies. You’ll play a key role in delivering advanced communication solutions for defence, cyber, and intelligence programmes. This position offers flexible working, professional development, and the chance to work on high-impact projects in a collaborative environment. Key Responsibilities • Design and optimise SDR system architectures for advanced communications applications. • Develop and implement interfaces and communication protocols. • Design and model network topologies to ensure seamless integration and performance. • Collaborate with hardware and software teams to integrate SDR solutions into larger mission systems. • Ensure compliance with industry standards and communication protocols. • Conduct testing and validation of communication systems, including interfaces, protocols, and networks. • Work closely with cross-disciplinary teams to support wider system integration. Skills and Experience Required • Strong experience with SDR system architectures. • Knowledge of communication interfaces, protocols, and standards (e.g. TCP/IP, IEEE 802, cellular network standards, error correction schemes). • Experience in designing network topologies and link budgets. • Familiarity with SDR system integration and related components. • Proficiency in network modelling and system design tools. • Strong analytical and problem-solving skills with a focus on system performance. Desirable Skills • Experience with real-time communication systems and network management. • Knowledge of OpenCPI, GnuRadio, Python, C/C++, and other SDR tools. • Experience with Linux environments and version control (e.g. GitLab). • Background in defence or cyber communications systems. • Familiarity with interoperability testing and network performance analysis. Clearance Due to the nature of the work, current DV clearance is required Apply for this role: Advertised By: Jonathan Worthington Share this role: Similar Opportunities Digital Signal Processing (DSP) Engineer Digital Signal Processing (DSP) Engineer, Permanent, Four day working week, DV or eDV Clearance Defence & Aerospace Gloucestershire £50000 - £60000 Mechanical Engineering Design Approver - Airbus A320 Join a leading DOA-approved aerospace firm as a remote Airbus ESI approver, shaping A320 systems and driving innovation with minimal travel to Hamburg. Defence & Aerospace Remote Quality AIT Engineer An exciting opportunity for a hands-on engineer to join a European space company building advanced small satellite platforms. Defence & Aerospace Turin Software OpenCPI Engineer OpenCPI Engineer, permanent, four day working week, DV or eDV cleared