Our Senior Management Team
Dr. Robin Tuytten
Director
Dr. Robin Tuytten is a globally recognised leader in mass spectrometry and women’s health, with extensive expertise in biomarker discovery and pregnancy-related diseases. As Director of Metabolomic Diagnostics, Robin combines his scientific acumen and strategic vision to drive the company’s R&D and product development initiatives. Trained as an analytical chemist, Robin earned his PhD from the University of Antwerp, where he developed advanced methodologies for the mass spectrometric analysis of nucleosides and nucleotides. He joined Belgian biomarker company Pronota in 2006, leading their preeclampsia biomarker program, before bringing his wealth of experience to Metabolomic Diagnostics. With over 20 peer-reviewed publications and co-inventorship on multiple technical and biomarker patent applications, Robin has a proven track record in commercial biomarker development and scientific innovation. His deep knowledge of women’s health, combined with his leadership in R&D, positions him to guide Metabolomic Diagnostics’ growth and future product portfolio with expertise and vision.
Dr. Greg Fitzgibbon
Clinical Laboratory Director
Greg Fitzgibbon is a Software Development Manager with a unique background spanning clinical diagnostics, laboratory operations and secure software systems. Drawing on over a decade of experience in regulated diagnostic environments, Greg oversees the design and delivery of software solutions that meet the needs of diverse stakeholders, including quality, regulatory, clinical, algorithm development and data privacy teams. Greg combines deep domain knowledge of clinical laboratories and in vitro diagnostics with modern software and platform engineering expertise, ensuring that digital solutions are robust, compliant, and fit for purpose across lab-facing and healthcare professional (HCP)-facing interfaces. His work focuses on secure, scalable software systems that support diagnostic workflows, data integrity, and regulatory compliance. He has held senior leadership roles including COO and Clinical Affairs Director within molecular diagnostics organisations, where he led multidisciplinary teams delivering IVD products under ISO 13485 quality management systems. His experience includes operating within and alongside information security and privacy frameworks, supporting secure software development lifecycles, and aligning digital platforms with standards such as ISO 27001, IEC 62304, and Cyber Essentials–aligned practices where applicable. Greg holds a PhD in Molecular Genetics and an MSc in Computer Science (Cyber Security). He is a HCPC-registered Clinical Scientist and a Diplomate of the Royal College of Pathologists. He has over eight years’ senior experience within the NHS and extensive involvement in the growth and scaling of biotechnology and diagnostics companies, as well as validating technologies for major pharmaceutical and government institutions.
Elizabeth Berkelaar
Office Manager / Executive Assistant
Elizabeth Berkelaar is the driving force behind Metabolomic Diagnostics’ operational success, ensuring every department works in seamless coordination and peak efficiency. As the central link across Administration, Finance, Quality, Human Resources, Health & Safety, and Research & Development, she turns strategic priorities into actionable results that keep the organization moving forward. With extensive experience across multiple industries, Elizabeth thrives in complex, high-stakes environments, managing cross-functional initiatives, streamlining processes, and fostering collaboration at every level. She works hand-in-hand with the executive team and R&D, aligning resources and actions to maximize impact. Renowned for her proactive leadership, operational precision, and unwavering commitment to results, Elizabeth is a key architect of Metabolomic Diagnostics’ growth, agility, and ongoing success.
Jane Kelly
Jane provides specialist Quality and Operational consultancy for clinical diagnostics and IVD development. With over 30 years’ experience across research, biotechnology, service and clinical laboratories, she supports diagnostics organisations from early development through analytical and clinical validation to regulatory readiness. Jane brings extensive expertise in IVD development, R&D transition to manufacture, Quality Management System (QMS) implementation, regulatory frameworks and risk-based decision-making. She has a strong track record of building practical, compliant quality systems (ISO 9001 and ISO 15189) and guiding innovative assays towards safe clinical and commercial use. She has been closely involved in the founding, growth and advancement of biotechnology businesses, including Ex5 Genomics and MyHealthChecked, and works collaboratively with clients in a pragmatic and supportive way to help effective diagnostics reach patients with confidence.
Grégoire Thomas
Grégoire is a senior biostatistician specialising in the development of clinical diagnostic tests. Over the past two decades, he has contributed to the creation of clinical predictive models using genomics, proteomics, and metabolomics data, and has been involved in the development of various medical devices. His collaborations with both academia and industry have resulted in more than forty peerreviewed publications and patents. Alongside his applied biostatistics work, he develops statistical methods and software. He has implemented processes and tools to structure and standardise biostatistical workflows to ensure transparency, traceability, and reproducibility. Grégoire also enjoys teaching, sharing his knowledge and experience.
Our Research & Development Team to also
Leslie Brown
Senior Scientist
Leslie Brown is the undisputed maestro of LC-MS at Metabolomic Diagnostics. With over 40 years of hands-on experience in pharmacology and metabolomics, he has engineered hundreds of sophisticated yet robust workflows, mastering every step from sample preparation to advanced method development. For the past decade, Leslie has been the driving force behind Metabolomic Diagnostics’ analytical innovation, leading groundbreaking method development while shaping the next generation of elite LC-MS analysts. Renowned for his precision, ingenuity, and encyclopaedic knowledge, Leslie is more than a senior scientist—he is the cornerstone of the lab, the mentor who inspires excellence, and the benchmark for analytical mastery in the field.
Catherine Brown
Catherine Brown is a highly experienced LCMS analyst with 10 years of expertise in pharmacology and holds an MSc from the University of the Western Cape. She currently serves as a Method Validation Analyst at Metabolomic Diagnostics, where she leads the design and execution of complex analytical studies, translating method performance and quality requirements into robust, statistically sound solutions. Catherine is recognised for her strategic approach to method validation, combining scientific rigor with practical insight to drive reliability, reproducibility, and operational excellence. Her work underpins critical pharmacological research, ensuring compliance with regulatory standards while advancing innovation in analytical methodologies. With a reputation for precision, problem-solving, and leadership in laboratory science, Catherine plays a pivotal role in Metabolomic Diagnostics’ mission to deliver high-quality, cutting-edge analytical solutions.
Ciara Sandquest
Ciara Sandquest is a Lab Technician at Metabolomic Diagnostics with 7 years of experience in analytical science. She holds a Bachelor of Science in Pharmaceutical and Forensic Analysis from the Technological University of the Shannon. In her role, Ciara oversees the day-to-day operations of the laboratory, managing equipment maintenance, calibrations, and procurement to ensure seamless workflow and compliance with quality standards. She works closely with senior scientists and development analysts, performing LC-MS analyses, preparing samples, and contributing to research and development experiments that drive innovation. Renowned for her meticulous attention to detail, problem-solving skills, and ability to optimize lab processes, Ciara plays a pivotal role in maintaining operational excellence and supporting the team in delivering high-quality analytical solutions. Her expertise and leadership in the laboratory make her a key contributor to Metabolomic Diagnostics’ mission of advancing cutting-edge scientific research.
Jacek Nowak
Laboratory & Biorepository Technician
Jacek Nowak is a Laboratory and Biorepository Technician at Metabolomic Diagnostics, where he plays a key role in supporting high-quality analytical research and operational excellence. A recent graduate, he earned his BSc (Hons) in Chemistry with Forensic Science from MTU and has quickly distinguished himself as a proactive and reliable member of the team. Since joining the company, Jacek has taken ownership of day-to-day lab operations and biorepository management, while collaborating closely with senior scientists and cross-functional teams to support R&D initiatives. Known for his meticulous attention to detail, analytical mindset, and eagerness to learn, Jacek contributes to the precision, reproducibility, and innovation that underpin Metabolomic Diagnostics’ mission. His dedication and versatility make him a rising talent and an essential contributor to the company’s ongoing success.