Job Description
Our partner is looking for a Senior Thermal Engineer to own the thermal architecture for advanced compute hardware, from die and package level analysis through liquid cooling, sled design and rack level heat rejection.
This is a senior individual contributor role with strong technical ownership. You will define thermal budgets, cooling requirements and validation methods, working closely with mechanical, power and hardware teams.
Location: Barcelona, Spain, Hybrid
Level: Senior
Responsibilities
• Own thermal design from silicon to rack level

• Define thermal budgets for high power compute hardware

• Model die hotspots, package spreading and board level thermal behaviour

• Run CFD and conjugate heat transfer simulations

• Perform transient analysis using realistic workload power profiles

• Design cold plates, manifolds and liquid cooling loops

• Define flow rate, pressure drop and coolant requirements

• Specify TIM stack, bond line and thermal interface requirements

• Define sled and rack thermal architecture

• Set coolant distribution,



redundancy and failure response requirements

• Own thermal validation on real hardware

• Correlate simulation results with sensor and test measurements

• Work with mechanical, power and cooling partners

• Support thermal telemetry, throttling and power management decisions

Requirements
• 8+ years of electronics thermal engineering experience

• Background in high power computing, data centres or similar electronics

• Thermal ownership of processors, GPUs, ASICs or FPGAs

• Strong package level thermal analysis

• Strong CFD and thermal simulation experience

• Icepak, Flotherm, Star CCM+ or equivalent

• Liquid cooling and cold plate design

• Flow and pressure budget experience

• TIM selection and bond line knowledge

• Thermal interface reliability understanding

• Practical thermal validation experience

• Strong simulation to measurement correlation skills

Optional / Desired
• 2.5D, interposer or c

📌 Senior Thermal Engineer (Barcelona)
🏢 Hireroo
📍 Barcelona