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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Skills Required
- 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
- Experience delivering modular or packaged mechanical systems for data centres
- Strong expertise in chilled water systems, pumping, and thermal management
- Experience producing factory-ready design documentation
Johnson Controls Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Johnson Controls and has not been reviewed or approved by Johnson Controls.
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Retirement Support — Retirement support is positioned as a meaningful part of the package through employer 401(k) matching, repeatedly framed as a strong pillar of the overall rewards mix. The matching contribution is described with specific match levels in multiple places, reinforcing perceived value for long-term saving.
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Leave & Time Off Breadth — Time off is presented as comparatively robust, with multiple paid holiday categories, vacation time, and sick time described as generous or “amazing” in places. Paid time off breadth appears to be a consistent contributor to total rewards attractiveness beyond base pay.
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Flexible Benefits — Benefits are described as broad and customizable, spanning standard medical/dental/vision plus optional add-ons like pet insurance, identity protection, and legal support. Tuition reimbursement is repeatedly highlighted as a high-value option supporting professional development.
Johnson Controls Insights
What We Do
At Johnson Controls, we transform the environments where people live, work, learn and play. From optimizing building performance to improving safety and enhancing comfort, we drive the outcomes that matter most. Dedicated to protecting the environment, we deliver our promise in industries such as healthcare, education, data centers and manufacturing. With a global team of 100,000 experts in more than 150 countries and over 130 years of innovation, we are the power behind our customers’ mission. Our leading portfolio of building technology and solutions includes some of the most trusted names in the industry, such as Tyco®, York®, Metasys®, Ruskin®, Titus®, Frick®, Penn®, Sabroe®, Simplex®, Ansul® and Grinnell®.
