What if your next role helped power the future of energy? About this Position: Imagine contributing your mechanical engineering expertise to cutting-edge technology that’s redefining how energy is stored and delivered. An innovative engineering firm based in Oxfordshire is seeking a skilled Mechanical Engineer (Rotating Machinery) to support their high-tech development of next-generation battery systems. This is a 3-month contract, with potential to extend to 6 months, offering outside IR35 status and a competitive hourly rate. On-site, hands-on, and at the heart of engineering excellence, this role places you in a dynamic environment where precision and performance drive real-world impact. Job Responsibilities: * Work with rotating machinery including mixers, motors, drives, and seals within a high-precision engineering setting. * Interpret and deliver work accurately from detailed engineering drawings. * Oversee mechanical assembly and ensure effective commissioning of complex equipment. * Apply a strong understanding of temperature cycles in mechanical design considerations. * Collaborate across technical teams to deliver robust, high-quality engineering solutions. * (Bonus) Liaise with suppliers and vendors to source components and resolve technical challenges. Experience Required: * 5–10 years of mechanical engineering experience, ideally within a heavy engineering or high-precision manufacturing environment. * Proven background in mechanical commissioning and working with rotating machinery. * Solid understanding of motors, seals, drives, and the influence of temperature on system performance