Mechanical Design Engineer

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At HR Wallingford, we design smart, resilient solutions across the natural and built environments to help everyone live and work more sustainably with water. By harnessing research, data insights and the power of our collective expertise, we help the world to better understand the changing influence and impact of water.

HR Wallingford's Equipment, Technology and Innovation Group is a small to medium, high‑expertise team who develop and supply a comprehensive range of physical modelling technology for hydraulic, marine and coastal research facilities. With more than 70 years' experience on our own modelling projects, our designs have been rigorously proven in use. For the past 30 years we have been sharing our technology and expertise with other model users, and are proud to have supplied equipment to more than 300 institutions worldwide.

Examples of the equipment we deliver includes wave generation systems, absorbing beaches, tidal generators, towing carriages, instrument positioning systems, force measuring equipment, dynamo meters, and remote platforms.

Alongside delivering world‑class engineering solutions to our clients, you will be helping us develop and capitalise new, innovative technologies to enhance our product portfolio and continue the organisation's growth in strategic markets.

In this full life‑cycle role, you'll be hands‑on with engineering design, analysis, and calculations that underpin our solutions. You'll contribute to design reviews, offering ideas to enhance functionality, reliability, and manufacturability, and you'll work closely with electrical and software engineers, as well as project managers, to ensure smooth and successful project delivery.

With our equipment being specialist, we provide product familiarisation and training, but experience of linear motion systems, precision rotating components, BS8888 / GD&T, limits and fits, and designing for manufacture is fundamental to the role.

• Develop 3D CAD models and detailed drawings
• Produce technical reports and specifications
• Support the development of new technologies through planning, testing, and verification

• Download a full job description and person specification
• Check out our exceptional benefits at
• Salary from £35,000 - £55,000 dependant on experience
• We understand the importance of a healthy work‑life balance and offer both hybrid working and flexi‑time

The closing date for applications is 12th January 2026
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If you are excited about this role but unsure whether you're the right fit, we encourage you to apply. We're also happy to answer any questions by emailing

Interested? Please apply providing your CV with covering letter.

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HR Wallingford are an equal opportunity employer and value diversity in our workplace. We do not discriminate, and work to create an inclusive culture across our business.