Our team

Delivering innovation proactively and with fairness, integrity and pragmatism

Executive team

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Fiona Marshall - CEO

Fiona has over 15 years working in the diagnostics sector for SME’s and international groups such as Alere, BBI Solutions and AgPlus Diagnostics. She has multidisciplinary skills from R&D through to commercialisation of diagnostic products in various fields such as Clinical, Veterinary and Defence. She has led many businesses from start-up to delivery and combines strong leadership and mentoring skills to support SMEs to grow and scale.

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Ross McDermid - Director of Commercialisation

Ross brings over 25 years of sales and marketing experience to the team. Before joining Biotangents, he spent the last 13 years working for Covetrus (formerly Henry Schein Animal Health), latterly as European Marketing Director leading and managing 12 country teams to deliver commercial success.

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Lina Gasiūnaitė - Director of Science

Lina is one of the Founders of Biotangents and leads our diverse research and development team of molecular biologists, bioinformaticians and engineers in the delivery of AmpliSpec™ products. She is a winner of AccelerateHer and was highly commended at the Scottish Women’s Awards in 2019, both competitions celebrating the achievements of female entrepreneurs. Lina holds an MSc in Biotechnology from the University of Edinburgh.

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Dr Andy Hall-Ponselè - Director of Operations

Andy designed and led development of the Leapfrog Assembly™ DNA assembly technology upon which Biotangents was founded in 2015. One of the Founders of Biotangents, he became Director of Operations in August 2018 as the team grew and broadened its expertise. Andy holds a DPhil from the University of Oxford, where he used metabolic engineering approaches to provide new insights into the control of metabolism in plants.

Delivery team

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Dr Stefania Meconcelli

Laboratory Manager

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Natalia Krzywania

Production Technician

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Dr Adrian Butterworth

Biomedical Engineer


Dr Pascoe Harvey

Head of Assay Development

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Marcos Yebenes Mayordomo

Senior Bioinformatician


Dr Suzana Savvi


Laboratory R&D
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Marina Freijo Mata

Head of Laboratory R&D

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Dr Jason Ioannidis

Senior Research Scientist


Cheryl Chan

Senior Research Scientist

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Dr Jamie Long

Research Scientist

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Ivonne Robledo

Research Scientist

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Struan Donachie

Research Scientist

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Brandon Shek

Research Scientist

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Rebecca Douglas

Research Scientist