Position: Mechanical Design Engineer Location: London (with Remote Working available) Salary: £60,000 Package Got a basic grounding in mechanical design and want to be mentored by some of the best in the low-carbon MEP space? Want to work on real-world projects that are cutting carbon in hospitals, schools, and public buildings across the UK? Let’s talk. We’re working with a fast-growing, forward-thinking renewables contractor (circa £10M turnover) that’s delivering high-impact decarbonization schemes across government frameworks. Typical projects range from £2M–£5M and involve replacing old boiler systems and MEP infrastructure with cleaner, more energy-efficient alternatives — including air source heat pumps, low-temperature heating systems, and upgraded mechanical plant. They’re now looking for an Intermediate or Trainee Mechanical Design Engineer to support their in-house design team. This is an ideal opportunity for someone early in their career who wants hands-on project exposure and structured progression in a business that’s scaling rapidly and invests heavily in its people. Role/Responsibilities: * Supporting the mechanical design team on low-carbon retrofit projects * Assisting with drawings, schematics, and basic calculations * Helping to carry out site surveys and gather existing installation data * Learning to use design tools such as Hevacomp, IES, and AutoCAD * Working with senior engineers to ensure designs meet client and project requirements * Coordinating with internal electrical teams and project managers * Getting involved in client meetings and technical reviews as experience grows The ideal candidate: * Has a basic understanding of mechanical systems (heating, ventilation, air conditioning, and plumbing) * Some experience using AutoCAD or similar design software * Either holds or is working towards an HNC/HND or degree in Mechanical Engineering or Building Services Engineering * A strong interest in sustainability and low-carbon technologies * Organised, enthusiastic, and keen to learn from experienced engineers * Any experience in building services or M&E design is a bonus — but not essential What’s on offer: * Competitive starting salary with regular reviews as you progress * Full support and mentoring from experienced design leads * Friendly and supportive team culture * 20 days holiday bank holidays * Flexible working arrangements between home and site locations