Mechanical Design Engineer

Mechanical Design Engineer Contract: 6 Months | Outside IR35 Working: Monday–Friday | 3 Days Office-Based Sector: Rail, Utilities & Airports Employer: Principal Contractor The Role: We are looking for an experienced Mechanical Design Engineer to join a Principal Contractor delivering major infrastructure projects across the Rail, Utilities and Airport sectors. The role will focus on delivering detailed mechanical building services designs, with a strong emphasis on HVAC systems. You will work as part of a multidisciplinary design team, supporting projects from detailed design through to construction. Key Responsibilities: * Deliver detailed mechanical and HVAC designs. * Produce drawings, layouts, specifications and technical documentation. * Carry out design calculations and equipment sizing. * Coordinate designs with multidisciplinary teams. * Ensure designs meet relevant standards and client requirements. * Resolve technical queries and support design reviews. * Work closely with project and construction teams. * Deliver design packages to programme and quality requirements. Key Requirements: * Experience as a Mechanical Design Engineer within building services. * Strong HVAC design experience. * Experience working on major infrastructure or construction projects. * Experience within Rail, Utilities, Airports or similar sectors desirable. * Principal Contractor experience advantageous. * Good knowledge of UK standards and building services regulations. * Experience with AutoCAD and/or Revit MEP desirable. * Relevant engineering qualification preferred. Contract Details: * 6-month contract * Outside IR35 * Monday to Friday * 3 days per week in the office * Major infrastructure projects * Principal Contractor environment This is a great opportunity for a Mechanical Design Engineer with strong HVAC/building services experience to work on major UK infrastructure projects