Job Description

Thermal Engineer

An exciting aerospace startup is seeking a Thermal Engineer to support the design and development of next-generation aerospace systems and technologies. This is an opportunity to join a highly innovative engineering team working on cutting-edge products from concept through to testing and deployment. The position offers a remote-first working environment, with only occasional travel required to the London office for project meetings, design reviews, and testing activities.

The Role

As a Thermal Engineer, you will be responsible for the thermal design, analysis, and performance optimisation of aerospace hardware and systems. You will work closely with multidisciplinary engineering teams to ensure products meet demanding thermal, environmental, reliability, and performance requirements.

Key responsibilities include:

• Conduct thermal analysis and modelling for aerospace systems and components.
• Develop thermal management solutions for electronic, mechanical, and structural assemblies.
• Perform steady-state and transient thermal simulations.
• Support system design reviews and contribute to engineering decisions.
• Define thermal requirements and verification plans.
• Analyse test data and validate thermal models.
• Work closely with Mechanical, Systems, Electronics, and Manufacturing Engineers.
• Support environmental testing and qualification activities.
• Produce technical reports, analysis documentation, and engineering recommendations.

Required Skills & Experience

• Degree in Mechanical Engineering, Aerospace Engineering, Physics, Thermal Engineering, or a related discipline.
• Experience in thermal design and analysis within aerospace, defence, space, automotive, advanced engineering, or high-performance technology sectors.
• Strong understanding of:
• Heat transfer
• Thermodynamics
• Fluid mechanics
• Thermal management systems
• Thermal control methodologies
• Experience using thermal modelling and simulation tools such as:
• ANSYS Thermal
• ANSYS Icepak
• Thermal Desktop
• Siemens Simcenter
• COMSOL
• MATLAB
• Ability to perform transient and steady-state thermal analysis.
• Experience interpreting and validating thermal test data.
• Strong analytical and problem-solving skills.
• Excellent communication and technical reporting abilities.

Desirable Experience

• Aerospace, satellite, space systems, UAV, propulsion, avionics, or defence programme experience.
• Knowledge of environmental qualification standards.
• CFD experience.
• Electronics cooling and battery thermal management expertise.
• Thermal vacuum testing experience.
• Familiarity with Model-Based Systems Engineering (MBSE).
• Experience working within regulated engineering environments.

What's on Offer

• Remote-first working environment.
• Occasional visits to the London office only.
• Opportunity to join a rapidly growing aerospace startup.
• Exposure to cutting-edge aerospace and engineering technologies.

If you're a Thermal Engineer looking to make a tangible impact within an ambitious aerospace startup, we'd love to hear from you. Apply today to discuss how your expertise could help shape the future of aerospace technology.

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