Mechanical Engineer III

Job Title:	Mechanical Engineer III
Job ID:	57866847
Job published:	Friday September 12, 2025
Job Type:	Contract
Employment type:	Full-time
Industry:	Engineering Telecommunications
Expertise:	Data Center Infrastructure IT & Telecoms Project & Product Management Security & Systems
Salary Type:	annual
Location:	Ireland

Job Description

We are recruiting for a Mechanical Engineer III on behalf of our client. This is a contract position based in Ireland, and we are specifically seeking candidates who already have work authorisation in Ireland.

Key Responsibilities

• Support CFD analysis of airflow and cooling performance in data centres using tools such as HELYX, OpenFOAM, or similar.
• Post-process simulation results and prepare clear, visual summaries for senior engineers and stakeholders.
• Assist with validation of CFD models against real-world operational data and benchmarks.
• Collaborate with design and sustainability teams to assess cooling performance and water usage impacts.
• Support the development and refinement of in-house modelling tools for airflow and water use simulations.
• Document model assumptions, inputs, and interpretation of results.
• Participate in knowledge-sharing and training to learn company-specific CFD workflows and standards.
• Occasionally assist with thermal or water modelling for experimental designs or new technologies.

Basic Qualifications

• Bachelor’s degree (or currently pursuing one) in Mechanical Engineering, Aerospace, or a related field.
• Strong understanding of fluid dynamics and heat transfer fundamentals.
• Practical experience with CFD tools such as HELYX, OpenFOAM, ANSYS, or SimScale.
• Basic Python scripting and proficiency with Excel for data analysis.
• Excellent written and verbal communication skills.
• Eagerness to learn and adapt to company-specific design requirements and CFD workflows.

Preferred Qualifications

• 1–3 years of experience in HVAC, data centre cooling, electronics cooling, or building services.
• Familiarity with psychrometrics, airside economisers, or evaporative cooling systems.
• Exposure to automation or scripting for CFD workflows (Python, bash, macros, etc.).
• Awareness of sustainability metrics such as PUE or WUE.
• Passion for sustainable, scalable, high-performance infrastructure design