Our presigous client in Bicester are the UK's leading supplier of concrete equipment, is seeking a Senior HGV and/or Heavy Plant Engineer-Fitter to lead on complex diagnostics, repairs, and servicing of their specialist concrete machinery. This is a hands-on, senior-level role suited to an experienced engineer looking to apply their skills in a niche, highly technical environment. As a key member of the engineering team, you will work on a diverse fleet of equipment including concrete mixers, pumps, batching plants, silos, and volumetric mixers - both in our Bicester workshop and at customer sites across the UK. Key Responsibilities: Lead on advanced diagnostics, repair, and maintenance of concrete equipment with mechanical, hydraulic, electrical, and electronic systems. Oversee and support less experienced engineers when required. Conduct equipment inspections, testing, and final commissioning before dispatch or after repair. Represent the business professionally on customer sites, offering technical advice and on-the-spot fault resolution. Assist with continuous improvement of workshop practices and service quality. What We're Looking For: Extensive hands-on experience as a senior-level HGV or heavy plant engineer/fitter, ideally within the concrete equipment or construction machinery industry. High-level expertise across mechanics, hydraulics, 12/24V & 3-Phase electrics, electronics and diagnostics (CANbus, PLC system...