# Quality Control Scientist > LEX Diagnostics Limited · Melbourn, United Kingdom · — · Posted 2026-07-22 **Workplace:** on_site ## Description Are you the kind of scientist who notices the details others miss? Good,  we’ve got just the role for you. At LEX Diagnostics, we’re on a mission to make diagnostics faster, simpler, and more accessible, without compromising performance. Our LEX VELO point-of-care PCR system is built to bring lab-quality results wherever they're needed. And behind every accurate test result is a set of reagents that have passed the highest standards of quality control. **That’s where you come in.** We’re looking for a **Quality Control Scientist** to join our Reagent Production team and take on a hands-on role assessing the consistency and quality of our reagents, from raw materials to final products. You’ll be running RT-qPCR assays, troubleshooting issues, collaborating across teams, and documenting results in a way that makes regulators smile. If you’re comfortable in the lab, curious about how things work (or don’t), and excited to play a key role in getting a new IVD to market,  we’d love to talk. **What you’ll be doing** - Running QC tests on incoming materials, in-process reagents, and finished products using qPCR and RT-qPCR - Following established protocols and documenting results with clarity and accuracy - Working closely with the Biology, Manufacturing and Quality teams to ensure every batch meets our gold-standard - Supporting continuous improvement efforts and helping refine QC methods as the product scales - Ensuring everything is done to Good Laboratory Practice and aligned with our ISO13485/FDA-aware processes - Contributing to the reliability and reproducibility of one of the fastest PCR systems in the world ## Requirements **What we’re looking for** - A degree in molecular biology or a related field - Hands-on experience with qPCR/RT-qPCR (and ideally the know-how to troubleshoot it) - An appreciation for precision, accuracy, and documentation — with excellent attention to detail - Strong communication skills and the ability to present data clearly and confidently - Someone who’s motivated, proactive, and thrives in a fast-paced, collaborative lab environment  **Nice to have** - Previous experience in IVD or medical diagnostics - Familiarity with ISO13485 or similar quality systems - Experience in QC testing for regulated products ## Benefits **Why join LEX?** You’ll be part of brilliant team of scientists and engineers, in a culture that encourages ownership, curiosity, and collaboration. **You’ll also get:** - A front row seat in a company bringing its first product to market - The chance to grow with the role and help shape our QC approach - A clear purpose: what you do here will directly improve healthcare outcomes around the world **Who are we and what does the future hold for you?** LEX Diagnostics was founded in 2020. Our innovative system integrates effortlessly into primary care settings, bringing PCR-level sensitivity to urgent care centres, physicians, labs, and pharmacies, all at a significantly lower cost per test than other molecular platforms. **2026 is seeing the elevation of the LEX Diagnostics team** from startup environment into a well supported, international diagnostics powerhouse without sacrificing the very thing that made our team successful, innovation. You’ll help drive forward a platform within a growing team that needs to invest in your development and career growth. **We also offer fantastic employee benefits including:**  - Employer pension contribution of 10% (+3% personal contribution)  - Private Medical Insurance  - Life insurance  - 25 days’ annual holiday plus bank holidays  - Discounts and memberships to local sports facilities and the theatre  **Into the details, but ready for the bigger picture?** Come help us build something extraordinary. We’d love to hear from you. ## Apply [Apply at LEX Diagnostics Limited](https://apply.workable.com/lex-diagnostics/j/AFE0A04B8F/apply) --- Powered by [Workable](https://www.workable.com)