A leading engineering recruitment firm is looking for a Principal Design Engineer to lead innovative mechanical design projects. This permanent role offers a salary range of £65k to £70k, along with excellent benefits. You will manage a dynamic team, mentor engineers, and collaborate with stakeholders to deliver high-impact projects. Ideal candidates will have experience in medium-duty diesel engine design and possess strong CAD skills (Siemens NX preferred). Join a fast-paced environment that values creativity and technical excellence. #J-18808-Ljbffr