Thermal Systems Design Engineer
Posted 9 Sep 2026
Advertised as “Thermal Design Engineer”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 5–15 yrs
- Management level
- People management
- Employment
- Hybrid
- Contract
- Full-time
No salary listed for this role.
Field of studyEngineering
Study levelBachelor's or higher
Company Description
ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.
Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.
Join us and start building tomorrow’s world today!
Job Description
As a Senior Thermal Systems Design Engineer, you will join our engineering team to support our activities within the aerospace sector.
You will play a key role in the design and development of thermal management systems for advanced electric propulsion products, including electric motors, electronic control units, and complete Electric Propulsion Units (EPUs). Working at the forefront of electrification technology, you will combine expertise in thermodynamics, fluid mechanics, and heat transfer to develop innovative, manufacturable solutions that optimise performance, efficiency, and durability.
- Location: Bicester
- On Site: Hybrid
- Clearance: Clearable
- Experience Level: Senior (5-15 years of experience)
Key Responsibilities:
- Own the thermal system design for electric propulsion products and associated technologies
- Develop thermal management solutions for motors, power electronics, and complete Electric Propulsion Units (EPUs)
- Analyse and optimise sealed liquid cooling systems, including heat exchangers, pumps, coolant circuits, and airflow management
- Perform thermal and fluid flow simulations to support product development activities
- Validate analysis results against real-world operating conditions and provide engineering recommendations
- Specify cooling system components, including pumps, heat exchangers, and airflow requirements
- Support the development of innovative thermal management concepts to improve product performance and durability
- Guide and support junior CAE Engineers, Designers, and Systems Engineers during the design process
- Work closely with suppliers and customers to resolve technical challenges and deliver optimal engineering solutions