Senior Thermal Engineer — Spacecraft Thermal Systems

Energy Jobline ATTB; Théméricourt; On-site; EUR 107,000 - 152,000; Full time

Job summary

Zephyr Fusion is seeking a driven Thermal Engineer to own the full lifecycle of space-grade thermal systems. The role focuses on architecture, modelling, testing, and integration of novel thermal solutions for high-performance spacecraft.

You will lead heat transfer analyses, develop integrated models, and collaborate with multiple engineering teams to define requirements and validate designs for space missions.

Qualifications

• Expertise in Thermal Analysis and Thermal System Design.
• Experience modelling and simulating heat flow in complex systems.
• Strong independent working style with minimal oversight.
• Proven ability to plan and execute TVac tests.
• Experience with active and passive thermal control systems.

Responsibilities

• Own the thermal system architecture and thermal analysis for space applications.
• Lead thermal design trade studies balancing performance, resources, risk, cost, and schedule.
• Develop and maintain integrated thermal models for Zephyr Fusion.
• Design and execute thermal tests for high-performance aerospace systems.
• Collaborate with other spacecraft disciplines to define thermal hardware requirements.
• Interface with stakeholders as technical authority on heat transfer.

Skills

Thermal analysis

Thermal system design

Heat flow modelling

Independent work

Problem solving

Tools

COMSOL

ANSYS

Job description

Zephyr Fusion is seeking a driven Thermal Engineer to own the full lifecycle of space-grade thermal systems. The role focuses on architecture, modelling, testing, and integration of novel thermal solutions for high-performance spacecraft.

You will lead heat transfer analyses, develop integrated models, and collaborate with multiple engineering teams to define requirements and validate designs for space missions.