Principal Research Engineer – Cryogenics
📍 Bristol, UK (Hybrid)
💼 Full-Time
Shape the Future of Sustainable Aerospace
We are seeking an exceptional Principal Research Engineer – Cryogenics to lead the development of next-generation cryogenic electrical power distribution systems for hydrogen-powered aerospace applications.
This is a rare opportunity to work at the forefront of sustainable aviation, driving MW-class cryogenic power technologies from early-stage research (TRL 1) through validation and system integration (TRL 6). You will play a critical role in defining technical strategy, influencing long-term technology roadmaps, and translating breakthrough research into certifiable aerospace systems.
The Opportunity
As a technical authority in cryogenic systems, you will:
* Lead system architecture and component design for cryogenic-electrical power distribution (20K–70°C)
* Drive development of MW-class superconducting/high-current systems
* Own system requirements, safety assessments, and certification strategy (including DO-160 compliance)
* Define materials, design principles, and scalable technology solutions
* Lead validation, verification, and qualification activities
* Chair design reviews and provide technical governance across multidisciplinary teams
* Mentor engineers and grow internal cryogenic capability
* Shape and protect intellectual property aligned to long-term hydrogen propulsion strategy
What We’re Looking For
* BEng (or equivalent) with 8+ years’ relevant experience
* Strong grounding in thermodynamics and mechanical principles
* Proven experience in cryogenic system development and integration
* Experience with superconducting or high-current power systems
* Understanding of material behaviour in cryogenic environments
* Experience across full product lifecycle (concept to certification)
* Knowledge of safety assessments, risk evaluation, and airworthiness requirements
* Ability to lead complex technical programmes and cross-functional teams
Why Join?
* Hybrid working (Bristol-based)
* Competitive salary + performance bonus
* Industry-leading pension scheme
* Private medical and life assurance
* Flexible working hours (including early Friday finish)
* The opportunity to redefine aerospace power and propulsion