assessing project requirements measuring the performance of mechanical components, devices and engines agreeing budgets, timescales and specifications with clients and managers maintaining and modifying equipment to ensure that it is safe, reliable and efficient using computer-aided design/modelling software liaising with suppliers undertaking relevant research producing and implementing designs and test procedures presenting designs to managers and clients testing, evaluating, modifying and re-testing products writing reports and documentation providing technical advice analysing and interpreting data.