Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Design and test innovative cryogenic electric motors for sustainable aviation.
- Company: HyFlux LTD, a pioneering clean aviation technology company.
- Benefits: Competitive salary, flexible hours, professional development, and employee share options.
- Why this job: Join a small team shaping the future of zero-emission aircraft propulsion.
- Qualifications: 3+ years in mechanical design with CAD expertise; passion for aerospace technology.
- Other info: Be part of a dynamic environment with significant career growth opportunities.
The predicted salary is between 35000 - 40000 £ per year.
Location: Work from home
Salary: £35k - £40k per annum (dependent on experience)
Contract: Full-time, Permanent
Hours of work: 37.5 hours per week
Reference: ESE_001
Reporting to: Engineering Director
About Us
HyFlux LTD is a clean aviation technology company developing superconducting cryogenic electric motors to transform aircraft propulsion. Our mission is to pioneer cryogenic electric propulsion solutions that radically improve aircraft performance, efficiency, and environmental impact, leading to true zero emissions propulsion. Our vision is to become a global leader in sustainable aerospace propulsion, delivering transformational technology with measurable impact for investors, partners, and the planet.
The Role
We're looking for a hands-on, forward-thinking Design and Test Engineer to join our small but fast-moving team. If you're excited by ambitious hardware challenges and want to help shape the future of aviation, we'd love to hear from you.
Key Responsibilities
- Design and analysis
- Design of test rig(s) for thermal, mechanical and electromagnetic testing of superconducting motors and cryogenic heat exchangers.
- Develop 2D drawings and 3D models of components.
- Prepare P&ID diagrams for test rig.
- Assist with modelling and design of critical components of a superconducting motor, heat exchangers and associated test equipment, from early-stage concepts to manufacturable assemblies.
- Perform FEA of selected components.
- Prepare and manage engineering drawings and documentation for prototyping and supplier communication.
- Collaborate with external manufacturers to ensure parts are production-ready and meet tolerance/fitment requirements.
- Liaise with test house(s) to ensure test rig is compatible with test facilities and safety protocols and suitable test slots are negotiated and secured.
- Manage configuration e.g. CAD models, e-BOM, m-BOM and product change process of all products i.e. motor, heat exchanger and test rig.
- Help shape design and documentation workflows as we scale up.
- Contribute to structured technical planning across design office and workshop activities in close coordination with multidisciplinary engineering teams.
- Ensure adherence to all relevant aerospace industry regulations and standards, including but not limited to CAA, FAA, EASA and AS9100.
Required Qualifications and Experience
- 3+ years' experience in mechanical design with a strong focus on CAD modeling and drafting.
- Proficiency in one or more major CAD packages (e.g., SolidWorks, Siemens NX, CATIA, Autodesk Inventor).
- Experience designing electromechanical or rotating machinery, ideally for motors, turbines, or similar systems.
- Experience in test rig design and delivery.
- Strong understanding of mechanical tolerances, fits, and materials.
- Able to work independently and adapt quickly in a dynamic, fast-paced environment.
- Excellent attention to detail and a structured approach to design documentation.
Desirable Qualifications and Experience
- Bachelor's degree or higher in Mechanical Engineering or similar.
- Experience with cryogenic systems or superconducting technologies.
- Familiarity with electromagnetic or thermal design constraints.
- Familiarity with electric propulsion systems (e.g., aviation, marine or automotive).
- Experience using FEA tools for stress thermal analysis.
- Background in aerospace, energy, or R&D environments.
Key relationships
The Engineer reports technically to the Engineering Director and will also report indirectly to the appropriate Programme Manager. The Engineer will develop and maintain excellent working relationships with staff in the Company. The Engineer will also work with external suppliers and other internal areas as required to perform effectively in the position.
What We Offer
- Competitive salary based on experience.
- 25 days' annual leave plus bank holidays.
- Company pension scheme.
- Flexible working hours.
- Professional development opportunities and training support.
- Employee share option scheme.
Why Join Us?
- Work on cutting-edge aerospace technologies and contribute to next-generation aircraft designs.
- Collaborate with industry-leading experts in thermal and cryogenic engineering.
- Be part of an innovative team driving advancements in sustainable aviation.
- Be part of a small team at the start of its growth journey where your voice will be heard and you can help shape the future.
- Competitive salary, benefits, and opportunities for professional growth.
How to Apply
Please send your CV and a brief cover letter outlining your suitability for the role to with the subject line Design & Test Engineer – DTE_001. Deadline for applications: Friday, 6th March 2026. Interviews will be conducted on a rolling basis, so early applications are encouraged.
Diversity & Inclusion
Hyflux Ltd is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Design and Test Engineer in Bath employer: HyFlux
Contact Detail:
HyFlux Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Design and Test Engineer in Bath
✨Tip Number 1
Network like a pro! Reach out to people in the aerospace and engineering sectors on LinkedIn. Join relevant groups, participate in discussions, and don’t be shy about asking for informational interviews. You never know who might have a lead on your dream job!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your design and test projects. Include CAD models, drawings, and any test rig designs you've worked on. This will give potential employers a tangible sense of what you can bring to the table.
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge. Be ready to discuss your experience with CAD software and any relevant projects. Practice common interview questions and think about how your skills align with the role at HyFlux LTD.
✨Tip Number 4
Don’t just apply through job boards; head over to our website and apply directly! It shows initiative and gives you a better chance of standing out. Plus, we love seeing candidates who are genuinely interested in joining our mission at HyFlux.
We think you need these skills to ace Design and Test Engineer in Bath
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience in mechanical design and CAD modelling. We want to see how your skills align with the role of Design and Test Engineer, so don’t be shy about showcasing relevant projects!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re excited about working with us at HyFlux LTD and how your background makes you a perfect fit for our mission in sustainable aviation.
Show Off Your Technical Skills: Don’t forget to mention your proficiency in CAD packages and any experience with cryogenic systems or superconducting technologies. We love seeing candidates who can hit the ground running with their technical know-how!
Apply Early!: We conduct interviews on a rolling basis, so the sooner you apply through our website, the better your chances! Don’t wait until the deadline; get your application in and let’s start the conversation!
How to prepare for a job interview at HyFlux
✨Know Your CAD Inside Out
Make sure you’re well-versed in the CAD software mentioned in the job description, like SolidWorks or CATIA. Brush up on your skills and be ready to discuss specific projects where you used these tools to design components or test rigs.
✨Understand Cryogenic Systems
Since the role involves superconducting technologies, it’s crucial to have a solid understanding of cryogenic systems. Do some research on how these systems work and be prepared to discuss any relevant experience you have in this area during the interview.
✨Prepare for Technical Questions
Expect technical questions related to mechanical tolerances, FEA, and test rig design. Review your past projects and be ready to explain your design process, challenges faced, and how you overcame them. This will show your problem-solving skills and technical expertise.
✨Show Your Team Spirit
This role requires collaboration with multidisciplinary teams, so be ready to share examples of how you’ve worked effectively in a team setting. Highlight your communication skills and how you’ve contributed to successful project outcomes in previous roles.