Overview We are currently seeking a Mechanical Design Engineer in Warrington to join an established building engineering services contractor with a strong in-house design function and a long-standing presence in the North-West market. This is a great opportunity for a design engineer who enjoys seeing solutions through properly, from early-stage concept and coordination, through to construction support and handover. You will work alongside experienced colleagues in a practical environment where quality, buildability, and clear communication matter. About the Company Our client is a privately owned building engineering services contractor with decades of experience delivering mechanical and electrical systems, combining strong operating standards with an agile, delivery-focused approach. They invest in their people and operate with an established in-house design team producing work to high industry standards. What You'll Be Doing Producing mechanical building services designs from concept through to detailed design Designing systems such as HVAC, ventilation, public health and associated services Completing calculations, equipment selection, schedules and specifications Coordinating with electrical design and wider project teams to resolve clashes and queries early Supporting pre-construction where required with technical input, clarifications and design development Attending design meetings and contributing to coordinated, buildable solutions Providing construction support, answering RFIs and assisting with commissioning readiness Maintaining clear document control and working to agreed design QA standards Skills & Experience Required Proven experience in mechanical building services design (consultant or contractor background welcome) Good understanding of UK regulations and common industry standards Confident producing coordinated designs and working through RIBA stages Competent with AutoCAD (Revit or BIM coordination experience beneficial) Strong communication skills and a practical, solutions-led mindset Organised approach to managing deadlines and documentation Benefits Salary: £55,000 - £65,000 depending on experience Company benefits package Stable workflow within a well-established contractor with an in-house design team Long-term progression opportunity as your technical and project exposure grows