Mechanical Design Engineer, Johnson Controls
Thermal management, mission-critical building systems, energy efficiency & decarbonization solutions
Open for applications
Thermal management, mission-critical building systems, energy efficiency & decarbonization solutions
1001+ employees
Open for applications
1001+ employees
Company mission
To create conditions that power the future.
Role
Who you are
- This role requires a practical engineer who can work independently, troubleshoot complex issues and confidently communicate technical results to customers and stakeholders
- Bachelor's degree in Mechanical Engineering or a related discipline
- 5+ years' experience in product testing, design, validation engineering or laboratory engineering
- Demonstrated experience leading first of kind or new product validation activities
- Practical, hands-on approach with strong workshop and laboratory skills
- Ability to independently manage multiple projects and priorities
- Excellent problem-solving and troubleshooting capability
- Strong customer-facing communication skills
- Continuous improvement mindset with a focus on safety, quality and automation
Desirable
- Strong experience in mechanical testing, product validation or laboratory engineering
- Hands-on practical experience with pressure measurement in airflow and water system, acoustic and leak testing systems
- Experience designing and developing test rigs and test procedures
- Strong troubleshooting and root-cause analysis skills
- Knowledge of instrumentation, sensors and data acquisition systems
- Experience developing test scripts and automated test sequences
- Ability to work independently and take ownership of complex activities
- Excellent communication and presentation skills
- Strong report-writing and technical documentation capability
- Good understanding of mechanical systems, HVAC equipment or data centre cooling solutions
What the job involves
- This is an exciting opportunity for an experienced and hands-on Mechanical Test Engineer to lead the execution and continuous improvement of testing activities across our data centre cooling product range, including CRAH units, AHUs, CDU systems and Fan Wall products
- The successful candidate will take ownership of designing and executing product validation programmes, including pressure measurement, acoustic testing, leak detection, filter leak testing and overall system performance verification
- Reporting to the Mechanical Engineering Manager, you will work closely with Design Engineering, Manufacturing, Quality and Customers to ensure all testing activities are executed accurately, safely and efficiently
- Develop test procedures for pressure measurement, airflow/water testing, acoustic performance, leak detection and filter leak testing…
- Design, specify and build test rigs and test setups to support product validation activities using data acquisition systems
- Develop and present test script, RAMS, testing methodologies and results to customers
- Analyse test results and prepare detailed technical reports
- Lead the execution of FWT (Factory Witness Test) testing programs for new and modified products
- Ensure testing activities are conducted in accordance with relevant industry standards and company procedures
- Troubleshoot product and test-related issues, identifying root causes and driving corrective actions
- Collaborate with design teams during product development to ensure validation requirements are incorporated early in the design process
- Support factory acceptance testing (FAT) and customer witness testing activities
- Explain technical findings clearly and professionally to both technical and non-technical stakeholders
- Support customer discussions relating to performance verification and compliance requirements
- Obtain customer approval on test methodologies and validation results
- Provide technical support during project reviews and customer visits
- Take ownership of the calibration programme for all test equipment, sensors, instrumentation and measurement devices
- Maintain calibration records and ensure compliance with internal and external requirements
- Identify opportunities to improve measurement accuracy and testing repeatability
- Coordinate with external calibration service providers where required
- Develop standard operating procedures for test equipment maintenance and verification
- Lead initiatives to improve safety, efficiency and repeatability within the test facility
- Identify and implement automation solutions to reduce manual intervention in testing activities
- Upgrade existing test rigs and facilities to improve functionality and reliability
- Drive continuous improvement projects focused on test quality, productivity and safety
- Support development of future testing capabilities for new product technologies
Our take
It's no secret that data centres need huge amounts of power, but a lot of the energy they produce ends up as waste heat. And as AI drives demand for computing power, operators are under extra pressure to get more from the electricity and infrastructure they already have - without putting more strain on the grid.
Johnson Controls is tackling this by turning that wasted heat into something useful. Its absorption chillers can use heat from on-site generators to help power cooling, reducing the electricity required for cooling and potentially freeing up more computing capacity. At the same time, its OpenBlue platform uses AI to make buildings smarter by automatically optimising airflow and optimising the management of equipment and maintenance.
The early results are promising, as Johnson Controls says its technology can cut airside energy use by nearly 10% in some applications. Moreover, its data centre approach could unlock significant additional computing capacity. With this success, the company is now betting that combining thermal technology with AI-powered software will help buildings and data centres do more with less.
Steph
Company Specialist at Welcome to the Jungle
Insights
Company
Company HQ
Ballintemple, Cork, Ireland
Leadership
Joakim Weidemanis
(CEO)Prior to joining Johnson Control in 2025, Joakim spent 13 years at Danaher Corporation. While there, they held various roles, including Executive VP.
Chris Bontempo
(CMO)Prior to joining Johnson Control in 2024, Chris spent nearly 19 years at IBM. While there, they held various roles, including VP of Cloud & Cognitive Software (Americas) and CMO of IBM Americas.
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