R&D Test & Development Engineer, LEX Diagnostics Limited, GB

At LEX, where engineering and biology meet to create technologies that push boundaries, we need an R&D Test & Development Engineer, or as we like to call you, the person with the R&D hat on who makes things work… Whether it’s setting up an experiment, building a fixture, or digging into data, you’ll be the one who ensures ideas turn into reliable results.

You will be central to our R&D process. Testing, troubleshooting, and refining both full systems and subcomponents. Your work will provide the data and practical solutions that keep development moving forward.

Key responsibilities include:

• Planning and performing structured tests to characterise performance.
• Collecting, analysing, and presenting experimental data in clear, actionable reports.
• Designing and assembling prototype test fixtures (mechanical, electrical, and software).
• Using Python, LabVIEW, or similar tools to acquire, manipulate, and present data (e.g. cameras, serial comms, TCP etc).
• Developing expertise in cartridge/instrument test workflows.
• Supporting and maintaining the LEX database and associated software tools.
• Working closely with engineering, software, and biology teams to make sure systems deliver in practice, not just in theory.