Mechanical Engineer - Design Validation

Johnson Controls · Dublin

Mechanical & Aerospace

Johnson Controls is hiring a Mechanical Engineer - Design Validation in Dublin. Posted 15 September 2026. Apply directly on Johnson Controls's own careers site — no account needed.

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

Test Facility Improvement

Preferred Skills

What We Look For

Benefits:

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