7d ago
7d ago
Job description
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.
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.
Typical pay for similar roles
Estimate£55,000–72,600 annually
Senior · United Kingdom ·
224 similar jobs
The middle half of pay advertised on Rejobs for this group over the last 24 months. This employer has not stated a salary.
About this role
Posted
27 Oct 2026
Updated
27 Oct 2026
Job type
Full time
Workplace
On-site
Sectors
Working hours
UTC+00:00
Experience
Senior
Employeralternativeheat.co.uk
LinkedInAlternative Heat
About Alternative Heat
Company Overview
Alternative Heat Limited
Banbridge, United Kingdom
2005
Approximately 200 employees (source: endole.co.uk). Revenue of £46.9 million in FY 2024 (source: endole.co.uk).
What They Do
Alternative Heat focuses on offsite prefabricated mechanical, electrical, and plumbing (MEP) systems, specializing in decarbonization solutions through modern construction methods. With over 19 years of experience, the company has established itself as a market leader in commercial offsite fabrication, providing a range of services including design, fabrication, supply, installation, and commissioning of bespoke modular MEP solutions (source: growjo.com). Their offerings include renewable heating systems such as biomass boilers, ground source heat pumps, air source heat pumps, and solar panels, catering to domestic, commercial, and industrial applications. As an MCS-registered supplier, they ensure high standards in their products and services (source: zoominfo.com). The company operates from facilities equipped with advanced technology and ample workshop space, supported by a skilled workforce including design engineers and CAD technicians (source: growjo.com). Their target markets span the public and private sectors across the UK, Ireland, and Europe, focusing on scalable, high-quality turnkey projects that align with carbon reduction and net zero goals (source: youtube.com).
Projects & Track Record
Alternative Heat has built a robust portfolio of turnkey projects in the decarbonization and off-site modular MEP sectors, delivering solutions across Ireland, the UK, and Europe. While specific project names, capacities, or costs are not detailed in available records, the company emphasizes its commitment to continuous improvement and best-in-class delivery for both new and repeat clients (source: youtube.com). Their operations are supported by established supply chains and regional offices, including a significant operations hub in Scotland, which enhances their geographic reach (source: growjo.com). The company’s focus on prefabricated solutions positions it well for growth, as it serves clients pursuing net zero initiatives (source: youtube.com). However, detailed information on specific completed projects, such as named installations with MW capacities, is limited in the public domain, which restricts the ability to provide a comprehensive track record (source: rocketreach.co).
Recent Developments
In the financial year ending 31 March 2024, Alternative Heat reported a significant turnover increase to £46.9 million, marking a 48% rise from the previous year (source: endole.co.uk). Employee growth has also been notable, with numbers reaching approximately 206, reflecting a 37% increase (source: endole.co.uk). A promotional video released on 17 July 2025 highlighted the company's role in decarbonization and modular MEP, showcasing their scalable solutions and European reach (source: youtube.com). Corporate filings have included full accounts submitted for the year ending 31 March 2023, with updates on confirmation statements and changes in significant control details (source: endole.co.uk). However, there have been no major contracts, acquisitions, or awards reported in the last two years, indicating a focus on internal growth and operational stability (source: endole.co.uk).
Working There
Alternative Heat offers a variety of roles across multiple departments, including procurement, HR, finance, operations, health and safety, and legal, with department heads overseeing specialized teams (source: growjo.com). The company is led by Managing Director Connel McMullan, and hiring primarily occurs at their Banbridge headquarters and prefabrication sites, with a focus on regional opportunities in Scotland (source: rocketreach.co). The culture at Alternative Heat emphasizes expertise, innovation, and continuous improvement, with a commitment to safety and client satisfaction driving their operational ethos (source: growjo.com). While specific employee benefits are not documented, the company’s investment in facilities and technology has contributed to significant annual growth rates ranging from 26% to 37% (source: youtube.com).
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