Our client is seeking a Systems Integration and Development Engineer to support research and development activities within the defence and security sector. Based in Filton, Bristol, the role will focus on defining, building, integrating, testing, assuring and releasing tactical edge gateway solutions for range extension and sensor integration across Line-of-Sight and Beyond-Line-of-Sight environments. This is a 12-month, full-time contract position requiring attendance on site. The role may also involve travel to customer locations for demonstrations, trials, testing and assurance activities, with potential overseas travel as the project develops. BPSS clearance with full Security Check (SC) clearance is required. Key Responsibilities: Act as the principal day-to-day engineering focal point, coordinating design, development, integration, testing and technical documentation across multiple stakeholders Translate user stories, use cases and acceptance criteria into technical tasks, solution options, development plans and demonstrable outputs Develop, integrate and configure tactical edge gateway solutions using COTS hardware, network components, software, virtualisation and containerisation technologies Integrate tactical radios, routers, sensors, gateways and Bearers of Opportunity to deliver configurable, scalable and interoperable solutions Produce solution architectures, interface definitions, configuration records, bills of materials, work instructions, user documentation and repeatable implementation patterns Plan and conduct integration, functional, performance, resilience and interoperability testing, capturing objective evidence against agreed acceptance criteria Investigate technical faults, integration constraints, risks, assumptions, dependencies, obsolescence concerns and requests for change Support Secure by Design, safety, quality, configuration management, technical assurance, release activities, demonstrations, user trials and project governance Job Requirements: Proven experience in systems integration and development within complex communications, tactical network, defence or similarly regulated environments Strong systems engineering capability, including requirements interpretation, user story analysis, architecture development, interface management, verification, validation, acceptance and release evidence Practical experience integrating COTS hardware, software, network components, compute, gateway equipment and associated services into repeatable solutions Knowledge of IP networking, routing, WAN technologies, secure network design and interoperability between radios, routers, sensors, gateways and tactical mission network services Experience planning and conducting integration, functional, performance and interoperability testing within controlled development and test environments Ability to produce configuration records, build standards, bills of materials, work instructions, user guidance, release evidence and technical documentation Experience supporting iterative or Agile development, including backlog items, acceptance criteria, definitions of done and Minimum Viable Product increments Strong stakeholder management and communication skills, with the ability to coordinate specialist input across software engineering, cyber security, electronics, test and evaluation, safety and technical authoring Desirable Experience: Knowledge of MOD engineering governance, GEAR, Secure by Design, Defence Lines of Development, safety, quality and assurance processes Understanding of tactical communications, tactical radio networks, satellite bearers, MANET, MTN, TMN, range extension and sensor integration Hands-on experience in software development, scripting, DevOps, configuration management, virtualisation or containerisation Experience supporting vulnerability assessment, security architecture, penetration testing or cyber assurance activities Knowledge of electronics integration, equipment layout, cabling, enclosure constraints, CAD, 3D printing or mechanical design Experience producing technical options, trade studies and recommendations relating to interoperability, supportability, scalability, affordability and technical risk Additional Information: Location: Filton, Bristol Contract duration: 12 months Working arrangement: Full time on site Clearance requirement: BPSS with full SC clearance Engagement: Contract position If you are a Systems Integration and Development Engineer with experience in defence communications, tactical networks and complex engineering integration, apply now to support the delivery of innovative tactical edge solutions