Mechanical Design Engineer
Johnson Controls · Dublin
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. This role requires a practical engineer who can work independently, troubleshoot complex issues and confidently communicate technical results to customers and stakeholders.
Key Responsibilities:
FWT Testing & Validation
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.
Test Facility Improvement
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.
Preferred Skills
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 We Look For
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.
Benefits:
Good company benefits including pension contribution, Health Care package and Membership of Engineers Ireland.
Networking opportunities and career development support.
Opportunity to join a company that works in an exciting and growing sector.
Exposure to cutting-edge data centre cooling technologies and advanced testing systems.
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