Thermal & CFD Simulation Engineer

What You'll Do7

• Run thermal studies on PCB assemblies, individual components, and the enclosures around them.
• Construct CFD models that map airflow, pinpoint hot spots, and show how well a cooling design performs.
• Prepare and mesh geometry in Gmsh or a comparable tool, then solve the case in OpenFOAM.
• Set boundary conditions, assign material properties, define power losses, and configure solver parameters.
• Write Python tooling that runs simulations and processes the output data.
• Test mesh independence and convergence, confirm numerical stability, and check results against hand calculations or reference datasets.
• Record modelling assumptions, known limitations, and the evidence behind each verification step.

Requirements5

• Hands-on CFD and thermal simulation work backed by solid heat transfer, thermodynamics, and fluid mechanics knowledge.
• Command of conduction, natural and forced convection, radiation, thermal boundary conditions, and heat-source modelling.
• Working knowledge of OpenFOAM or a similar CFD package, plus Gmsh or another mesh-generation tool.
• Python scripting for automation and post-processing of simulation results.
• Judgment for assessing simulation accuracy and reading the results correctly.

Preferred Qualifications3

• Bachelor's or master's degree in Mechanical, Thermal, Aerospace, or a related engineering discipline.
• 5 or more years in CFD, thermal engineering, or electronics cooling.
• Background in PCB thermal analysis, power electronics, semiconductor cooling, or electronic enclosures.

Who Should Apply

Engineers with a CFD and heat transfer foundation who have solved real electronics cooling problems, ideally on PCB or power electronics designs. You should work comfortably in OpenFOAM and Gmsh and automate your own workflows in Python. The role suits someone ready for 40 hours per week over roughly 13 weeks.

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