Apprentice Thermal/CFD/Aerodynamics Engineer (M/F)

COFINAIR Group; France; Hybrid; EUR 8,900 - 13,000; Full time

Job summary

JACIR – a COFINAIR Group company, located at Pontault-Combault, is seeking an Apprentice Thermal/CFD/Aerodynamics Engineer (M/F). You will work under a thermal engineer to advance CFD analyses and help create tool-based layouts for clients.

The role emphasizes learning in thermal and aerodynamics within cooling technology and involves practical, hands-on project work from day one.

Qualifications

• Currently enrolled in a general engineering program with a specialization in thermal or energy engineering.

Responsibilities

• Continue CFD simulations on air circulation and recycling in adiabatic coolers.
• Analyze results and complete simulations to improve data reliability.
• Define safe configurations and those presenting risks of air recirculation.
• Participate in development of a simple tool to propose optimal layouts for clients.
• Illustrate the results with CFD visuals to facilitate technical understanding.
• Support the thermal engineer for thermal selections.

Skills

Interpersonal skills

Rigor

Autonomy

Proactivity / Improvement

Education

Engineering student in thermal/energy

Tools

MS Office

Job description

Apprentice Thermal/CFD/Aerodynamics Engineer (M/F)

04/24/2026

France

Full time

Job Description

Are teamwork and personal and professional fulfillment important values to you?
Are you looking for meaning and professional challenges?
Join us!

JACIR – a COFINAIR Group company with 5 production sites in France, Germany, and Italy, 300 employees, and a turnover of €75 million – is now positioned as the leading European partner, offering innovative and environmentally friendly evaporative cooling technologies: design, manufacturing, marketing, and dedicated services for cooling towers and adiabatic coolers for industry and the service sector. As part of its expansion, JACIR is recruiting for its Pontault-Combault site:

Apprentice Thermal/CFD/Aerodynamics Engineer (M/F)

General Missions:

Reporting to the thermal engineer, your main responsibilities will be:

• Continue CFD simulations on air circulation and recycling in adiabatic coolers.
• Analyze the results and complete the simulations if necessary to improve the reliability of the existing data.
• Define safe configurations and those presenting risks of air recirculation.
• Participate in the development of a simple tool to propose optimal layouts for clients.
• Illustrate the results with CFD visuals to facilitate technical understanding.
• Support for the thermal engineer for thermal selections.

What we offer:

• A training program on our products and services and awareness of our QSE procedures will be put in place.

Required Qualifications and Skills

Your strengths that make the difference:

You possess excellent interpersonal skills, are enthusiastic and curious.
You demonstrate rigor, versatility, and autonomy.
You are proactive in suggesting improvements to existing processes and contributing to business development.

Your background:

Currently enrolled in a general engineering program with a specialization in thermal or energy engineering, you are seeking an internship or apprenticeship, either in your second year of engineering studies or at the end of your degree, to put your knowledge into practice and participate in real-world projects.
You have a basic knowledge of English (minimum B1 level) and are proficient with Microsoft Office.

“Apprentice Thermal/CFD/Aerodynamics Engineer (M/F)”