_{08th September, 2026}

Mechanical Engineer – Heat Networks

Location: London
Salary: Competitive salary and benefits package

Employment Type: Permanent

We are working with a leading specialist engineering contractor that delivers innovative and sustainable energy systems across the UK.

Due to a strong pipeline of low-carbon projects, they are looking to appoint an experienced Mechanical Engineer to join their London-based team. This is an excellent opportunity to work across the complete engineering lifecycle of major heat-network projects—from detailed design and procurement through to construction, commissioning and operation.

The Role You will work across a variety of heat-network projects throughout London, combining office-based design and engineering responsibilities with site-based delivery during the construction and commissioning phases.
Working alongside an experienced multidisciplinary team, you will contribute to the technical development and successful delivery of sustainable, low-carbon energy solutions.

Key Responsibilities

• Undertake detailed mechanical design and site-engineering work across heat-network projects of varying sizes and complexity.
• Support projects throughout the design, procurement, construction and commissioning stages.
• Engage with suppliers and subcontractors to ensure appropriate product selection and successful delivery.
• Coordinate mechanical design requirements with site installation activities.
• Review technical drawings, specifications and design documentation.
• Resolve technical issues to maintain project quality and programme.
• Monitor, analyse and report on engineering and project performance.
• Work collaboratively with clients, consultants, contractors and other project stakeholders.
• Report to the relevant engineering lead throughout the design, construction and commissioning phases.

Experience and Qualifications

• Bachelor’s degree or equivalent qualification in Mechanical Engineering or a related discipline.
• At least five years’ experience in a mechanical engineering position, ideally within the energy or building-services sector.
• A good technical understanding of heat networks, LTHW systems and heat-pump technology.
• Experience working across the design and delivery stages of engineering projects.
• Proficiency in Microsoft Excel, Word and the wider Microsoft Office suite.
• Experience using AutoCAD, Revit or SolidWorks would be advantageous.
• Strong communication and stakeholder-management skills.
• A flexible and enthusiastic approach, with a willingness to take on new technical challenges.
• An interest in working across the full project lifecycle, from initial design through to commissioning and operation.

What’s on Offer?

• The opportunity to work on innovative heat-network and low-carbon energy projects.
• Exposure to the complete engineering project lifecycle.
• A strong and growing pipeline of work within the UK energy sector.
• Support with continuing professional development and progression toward Chartered Engineer status.
• A collaborative and supportive working environment.
• Regular team-building, social and charitable events.
• Employee wellbeing support and access to an Employee Assistance Programme.

This is an excellent opportunity for an ambitious Mechanical Engineer to join a growing team and play an important role in delivering sustainable energy infrastructure across London.

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