Senior Mechanical Design Engineer – Modular Offsite Manufacturing
Silent Aire – Dublin
What you will do
The Senior Mechanical Design Engineer will play a key technical role within the Modular Design Engineering Team, responsible for the end-to-end mechanical design of offsite-manufactured, factory-built modular systems. These include modular data centres, packaged MEP plantrooms, and skid-mounted mechanical assemblies.
The role requires proven experience in offsite manufacturing and modular construction, with designs developed specifically for Design for Manufacture and Assembly (DfMA), factory assembly, testing, certification, transportation, and repeatable deployment across global regions.
How you will do it
Lead the mechanical design of modular plantrooms, packaged MEP systems, and modular data centre solutions.
Develop chilled water, pumping, and heat rejection systems suitable for mission-critical environments.
Produce and review P&IDs, schematics, GA drawings, technical specifications, and Descriptions of Operation.
Design systems specifically for offsite manufacturing and DfMA principles.
Ensure designs are optimized for factory assembly, testing, transportation, and repeatability.
Interface with manufacturing, quality, commissioning, suppliers, clients, and certification bodies.
Support technical submittals, design reviews, and third-party approvals.
Provide technical guidance and mentorship to junior engineers.
What we look for
Degree in Mechanical Engineering or equivalent.
8+ years experience in mechanical building services or industrial MEP design.
Demonstrable experience in offsite manufacturing and modular construction (core requirement).
Experience delivering modular or packaged mechanical systems for data centres or other mission-critical facilities.
Strong expertise in chilled water systems, pumping, and thermal management.
Experience producing factory-ready design documentation suitable for fabrication and testing.
Desirable Experience
Experience with liquid-cooled data centre systems.
Familiarity with UL / cURus, CE, PED, ASHRAE, EN, and ISO standards.
Chartered Engineer or working toward chartership.
Experience working across multiple regions (EU, US, Middle East).
Occasional travel to manufacturing facilities or project sites may be required.
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At Johnson Controls, we transform the environments where people live, work, learn and play. As the global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet.
Building on a proud history of 140 years of innovation, we deliver the blueprint of the future for industries such as healthcare, schools, data centers, airports, stadiums, manufacturing and beyond through OpenBlue, our comprehensive digital offering.
Today, Johnson Controls offers the world`s largest portfolio of building technology and software as well as service solutions from some of the most trusted names in the industry.
Visit www.johnsoncontrols.com for more information.
