Interconnects Design Engineer 3665-1

World Class Defence Organisation is currently looking to recruit a Design Engineer - Test Equipment on an initial 6 month contract with possible extension.Rate: £50.00 per hourLocation: Stevenage / BoltonHybrid / Remote working: 2-3 days min on site, the rest remoteContract: 37 Hours per weekDuration: 6 Months (initially and then ongoing and long-term thereafter)IR35 status: Inside IR35 (Umbrella)We are seeking a proactive and skilled Interconnects Design Engineer to join our rapidly growing team. In this role, you will design bespoke electrical interconnects and cable assemblies capable of transmitting power, signal, and high-speed data across intricate subsystems. From interpreting high-level subsystem requirements to producing 2D manufacturing drawings on Visio & HarnWare, you will play a central role across the complete design lifecycle-supporting everything from initial research and ideation to prototype build, environmental trials, and final manufacturing hand-off.What You Will Be Doing

• Translate complex subsystem requirements into clear electrical schematics, wire topologies, and detailed 2D cable assembly definitions using MS Visio and HarnWare.
• Lead investigations into cable and interconnect issues, developing robust design solutions both independently and as part of multi-disciplinary teams.
• Collaborate directly with production teams to resolve manufacturing queries, while supporting functional and environmental product testing/trials.
• Manage product data, revision controls, and change processes using Windchill (or similar PDM/PLM systems).
• Engage with internal engineering teams, production units, and external suppliers to streamline harness assembly and deliver on-time work packages.

Essential Skills & Experience:Education: Degree, HND, or HNC in Electrical Engineering, Electronics, or a related discipline (backed by significant hands-on harness design experience).

• A minimum of 2 years’ experience using MS Visio and HarnWare to generate electrical schematics, wiring diagrams, and manufacturing drawings.
• Solid understanding of electrical constraints including current carrying capacity, voltage drop, signal types, screening, EMC, and environmental factors.
• Proven experience working within PDM/PLM systems (e.g., Windchill) for configuration and change control.
• Strong verbal and written communication skills with the ability to lead design work packages, write clear technical documentation, and collaborate effectively with multi-disciplinary stakeholders.

Desirable Experience:

• Familiarity with military Defence Standards (Def-Stans).
• Practical knowledge and application of MIL-DTL-38999 (D38999) connectors in cable harness manufacturing.
• An appreciation of cable assembly production processes, DFM principles, and supplier engagement.