The Role
Lead mechanical building services design for modular plantrooms, skids, and MEP modules supporting hyperscale data centre projects. Responsibilities include calculations, equipment selection, schematics, design coordination, technical reviews, risk management, documentation, procurement and commissioning support. The role provides technical leadership and mentoring, coordinates with clients, suppliers, manufacturing and DFMA teams, manages design changes, and drives standardization, quality assurance and continuous improvement.
Summary Generated by Built In
Team Overview:
Within one of these Business Units, Alternative Heat deliver turnkey plantroom packages at scale, directly to hyperscale developers throughout Europe, under long-term framework agreements. This Business Unit is scaling at pace, and we have secured a 5-year framework agreement to design, manufacture and deliver volume based, turnkey plantroom modules (mechanical, electrical and BMS) to projects throughout Europe, with demand set to increase annually.
Within one of these Business Units, Alternative Heat deliver turnkey plantroom packages at scale, directly to hyperscale developers throughout Europe, under long-term framework agreements. This Business Unit is scaling at pace, and we have secured a 5-year framework agreement to design, manufacture and deliver volume based, turnkey plantroom modules (mechanical, electrical and BMS) to projects throughout Europe, with demand set to increase annually.
Role Overview:
Lead and deliver the mechanical building services design for modular plantrooms, plantroom skids and multi-service MEP modules on hyperscale datacentre projects, taking responsibility from initial design development through calculations, equipment selection and coordinated design package delivery. Provide technical leadership and mentorship to engineers, graduates and apprentices, ensuring quality through design checking and approval processes. Working closely with the Head of Engineering, Lead Design Coordinator and DFMA Lead, coordinate resources, priorities and project deliverables while taking ownership of assigned design packages. Resolve complex technical challenges, identify and manage design risks, and escalate any significant issues, scope gaps or incomplete client requirements to the Head of Engineering to ensure successful project delivery.
Job Title | Senior Mechanical Design Engineer
Location | Head Office, Banbridge
Hours | Monday-Thursday 8am-5pm and Friday 8am-3pm
Salary | Competitive Depending on Experience
Responsible to | Head of Engineering DFMA
Location | Head Office, Banbridge
Hours | Monday-Thursday 8am-5pm and Friday 8am-3pm
Salary | Competitive Depending on Experience
Responsible to | Head of Engineering DFMA
What You'll be Doing
The role involves leading the delivery of mechanical building services designs, including reviewing client specifications, developing system schematics and operating sequences, completing system calculations, and selecting suitable equipment to meet performance and maintenance requirements. It requires ensuring technical accuracy, compliance with relevant standards and design assurance processes, while assessing risks, resolving technical issues and coordinating designs with clients, suppliers, manufacturing, assembly and DFMA teams. The role also includes supporting procurement, bids, testing and commissioning interfaces, managing design documentation and digital workflows, coordinating project deliverables and resources, and mentoring junior engineers. In addition, it involves maintaining design quality and control, managing design changes, and driving continuous improvement through standardisation, lessons learned and cost-efficient design, while retaining ownership of mechanical design intent and coordinating with DFMA engineers responsible for detailed fabrication and assembly documentation.
About
With over 20 years of experience within the Commercial Offsite Fabrication industry, Alternative Heat have established themselves as a market leader in this sector. Located centrally between Dublin and Belfast our 8.5 acre Head Office and fabrication facilities, which are fully equipped with overhead cranes and 8,000m² of workshop floor area, provide an ideal factory construction environment which is reflected in the high quality solutions we offer.We employ a strong team of design engineers, CAD technicians, contracts managers and skilled trades personnel who utilise their vast industry experience to assist in the design, fabrication and delivery of our bespoke MEP solutions, which we supply throughout the UK, Ireland and Europe.
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The Company
What We Do
Alternative Heat designs, manufactures and delivers turnkey offsite-prefabricated mechanical, electrical and plumbing (MEP) solutions for commercial and infrastructure projects. Its offering includes packaged plantrooms, plant skid modules, and MEP lateral and riser modules, supported by in-house design, fabrication, installation, commissioning and operation. The company also provides prefabricated renewable-energy solutions, including biomass and heat-pump systems, serving data centres, district heating, residential and healthcare projects across the UK, Ireland and mainland Europe.






