About the Job

This is an exciting opportunity for a CFD Engineer to join the Sustainability & Building Physics team in Dublin, working exclusively on Simstudio CFD projects.

Simstudio is a specialist CFD company based in Zoetermeer, the Netherlands, focusing on airflow, heat transfer, and smoke control studies for data centres, wind engineering, and fire safety. As part of the Ethos group, Simstudio collaborates closely with the Sustainability team in Dublin on international projects across Europe and the Middle East.

In this role, you will be an integral member of both teams — embedded in the Dublin office while working daily with the Simstudio CFD team in the Netherlands. Together, you will deliver advanced CFD simulations that inform the design and optimisation of high-performance, sustainable environments.

The position is hybrid, based in Ireland, with attendance at our Dublin office as determined by project needs.

Responsibilities:

Carry out CFD simulations to assess airflow, thermal performance, wind conditions, smoke movement, and environmental comfort.
Work on advanced CFD projects for data centres, wind engineering, and fire safety applications.
Translate complex CFD outputs into clear, actionable recommendations for clients, architects, and engineering teams.
Collaborate closely with both Ethos and Simstudio engineers to integrate CFD findings into overall design strategies.
Prepare detailed technical reports, visualisations, and presentations for internal and external stakeholders.
Contribute to the development of modelling methodologies, QA/QC procedures, and R&D initiatives within the joint CFD team.

About you

Experience & Qualifications

Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or a closely related field.
1–3 years of relevant experience in CFD analysis within building physics, mechanical systems, or similar applications (exceptional graduates will also be considered).

Technical Skills

Strong understanding of fluid dynamics and heat transfer principles.
Experience with CFD software such as ANSYS Fluent/CFX, Star-CCM+, OpenFOAM, or equivalent.
Familiarity with FDS (Fire Dynamics Simulator) or 6Sigma/DC Design is an advantage.
Experience using AutoCAD, Revit, and MS Office for supporting workflows.

Soft Skills

Excellent analytical, organisational, and communication skills.
Analytical thinker with a structured approach and attention to detail.
Clear and confident communicator capable of explaining technical results to non-technical audiences.
Collaborative mindset with the ability to work effectively in international, multi-disciplinary teams.
Self-motivated and proactive, with enthusiasm for innovation and sustainability.
Strong sense of ownership and commitment to quality.

Why Join Us?

Join collaborative leaders – Work alongside experienced, approachable professionals who combine technical excellence with calm, supportive leadership.
Make a real impact – Contribute to mission-critical infrastructure projects that support the digital and energy transition across EMEA and beyond.
Grow with us – As a rapidly growing consultancy, we offer opportunities to develop your skills, broaden your experience, and build your career.
Shape a more sustainable future – Sustainability isn't an initiative—it's embedded in every project, every discipline, and every decision we make.

We offer:

Flexible Fridays and a 9-day fortnight working schedule — enjoy every second Friday off to maintain work–life balance.
A culture that values flexibility, learning, and teamwork, with clear progression pathways and support toward professional accreditation.
Opportunities to work alongside some of the most experienced engineers in the industry, within a forward-thinking, technology-driven consultancy.

Benefits: