Thermal Design Engineer (Aerospace)

Location: Bicester, United Kingdom; hybrid/on-site work. Security clearance: must be clearable and may need to complete Baseline Personnel Security Standard checks.

Company

hirify.global is a global engineering and technology consultancy delivering engineering solutions across aerospace, defence, automotive, energy, rail, IT, and other sectors.

What you will do

• Own the thermal system design of electric propulsion products, including motors, power electronics, and complete Electric Propulsion Units.
• Develop and optimise sealed liquid cooling systems, heat exchangers, pumps, coolant circuits, and airflow management.
• Perform thermal and fluid-flow simulations using CFD and validate results against real-world operating conditions.
• Specify cooling-system components and ensure designs support assembly, manufacturing, and volume production.
• Support testing, validation, technical documentation, and product lifecycle activities.
• Guide junior CAE engineers, designers, and systems engineers while working with suppliers and customers to resolve technical challenges.

Requirements

• Senior-level experience, typically 5–15 years, delivering thermal design solutions for complex engineering products.
• Strong knowledge of thermal engineering, thermodynamics, fluid mechanics, and heat transfer.
• Experience with thermal systems, electric machines, rotating equipment, or electromechanical systems.
• Experience with CFD and thermal analysis tools, including ANSYS Fluent or equivalent software.
• Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
• Ability to solve complex engineering problems, communicate with stakeholders, and work independently in multidisciplinary teams.

Nice to have

• Experience in electric propulsion, electrification, electric vehicles, aerospace, or advanced mobility.
• Knowledge of electric motor cooling and power-electronics thermal management.
• Experience with Python, MATLAB, LabVIEW, physical testing, and simulation correlation.
• Understanding of Design for Manufacture and Design for Assembly principles.
• Experience working with external suppliers and customers on technical development projects.

Culture & Benefits

• Personalised career development, mentoring, and ongoing learning opportunities.
• Access to a wide range of engineering projects and industries.
• Private medical insurance, life insurance, and pension scheme.
• Cycle and Tech Scheme and employee assistance programme.
• Social events, team gatherings, and a flexible working approach depending on the role.