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Browse the biographies of our subject matter experts.

Bayne, Kaitlynn

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Application Scientist, Scientific and Laboratory Services


Kaitlynn Bayne is an Application Scientist within the Scientific and Laboratory Services team. She has experience with cell culture, bioreactors, analytics and assay development. Kaitlynn obtained her Master’s Degree in Molecular, Cellular and Developmental Biology from the University of Michigan and has many years of laboratory experience including positions at the University of Michigan and with us. When she isn’t working, Kaitlynn enjoys attending trivia nights, playing dodgeball and being outdoors. 

kaitlynn bayne

Becheau, Odette

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Senior Bioprocess Specialist, Scientific and Laboratory Services


Odette joined us in 2016 and is currently a Senior Bioprocess Specialist within the Scientific and Laboratory Services organization. She performs hands-on training at customer sites as well as scientific coaching. Her role is to support customers to help them optimize, scale-up and transfer processes to produce stem cells, viral vectors and virus vaccines for preclinical and clinical grade manufacturing. She has several years of experience within the vaccine industry including positions in both R&D and manufacturing groups at GSK Vaccines. Odette obtained her Master’s Degree in Biotechnology Engineering at Bordeaux Engineering Institute of Biotechnology in France. She spends most of her free time practicing a variety of different sports, including badminton, rock climbing and skiing.

Odette Becheau

Bergheim-Pietza, Silke

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Global Product Manager


Silke Bergheim-Pietza is a global product manager in Frankfurt am Main, Germany. She joined us in 2005, bringing a wealth of experience in the areas of sales, product management and marketing. In her current role, Silke globally manages the biopharmaceutical products for pre-filtration and depth filtration including cartridges, sheets, modules and capsules. Prior to joining us, Silke worked as a global application manager with the industrial gas company Messer Griesheim Group. While her career began in applications engineering, she has extensive cross-functional expertise ranging from applications engineering to strategic account and marketing management. Silke holds a degree in chemical engineering from the Technical University of Dortmund, Germany. She enjoys horseback riding and walking with her dog.

Silke Bergheim-Pietza

Bisschops, Marc

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Senior Director, Integrated Process Solutions


Dr Marc Bisschops is the Senior Director of Integrated Process Solutions. Marc leads the development of the regulatory support initiative for continuous bioprocessing. He is responsible for field support activities related to continuous bioprocessing, cell culture and single-use technologies. Marc is one of the leading scientists in this area. He has completed over 250 continuous chromatography and continuous downstream processing projects, authored 15+ continuous publications, and invented eight continuous bioprocessing patents. Marc won the Machevo Award (NLD) for Innovative Separation Equipment developed during PhD research, and is a guest lecturer at various post-graduate courses in Europe. Marc holds a PhD in Biochemical Engineering, Delft University of Technology (NLD). Prior to joining us, Marc was CSO at Tarpon Biosystems, the company that developed the continuous chromatography technology. Marc held several scientific and management positions in process development departments in Batavia Biosciences, Xendo. Mark enjoys photography and visiting the theater with his four daughters, including two sets of identical twins.

marc bisschops

Cameau, Emmanuelle

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Cell and Gene Therapy Technical Manager, EMEA


Emmanuelle has more than 13 years’ experience Biotechnology Process Development and GMP production. Highly skilled in the field of cell culture applications, she joined us first as a Bioprocess Specialist for the first four years. She then transitioned to the Bioreactor applications team, where she was Principal Bioreactor Specialist until recently. Prior to joining us she worked as a Biotech Process Sciences Upstream Process development engineer at Merck Serono for four years. She received her Biotechnology Engineer diploma from the former Ecole Supérieure d’Ingénieurs de Luminy (now Polytech Marseille). Emmanuelle is a keen horse rider and enjoys competing in horse jumping competitions.

Emmanuelle Cameau

Group Leader, Upstream Technologies


Joe has worked for us since 2014, and has over 15 years’ industry experience in the upstream space. Prior to his tenure with us, Joe held various cross functional roles in marketing, sales, technical applications, as well as a cell culture associate in a commercial manufacturing cGMP environment. He has a Bachelor of Science from the University of Rhode Island, Masters of Business administration from the University of New Haven, and Master of Science in Biotechnology from The Johns Hopkins University. Outside of work, Joe enjoys outdoor activities such as golfing and hiking, and walking his French bulldogs Gunther and Potato (named by his three children!)

Joe Capone

Ciboldi, Roberto

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Technical Specialist II, Scientific and Laboratory Services


Roberto is a Technical Specialist, part of the Purification Team. Originally from Milan, Roberto joined us in 2013, he studied Chemistry at P. Carcano University and is currently studying Economy at Insubria University. He works on developing new process or supporting existing ones specifically on chromatography, depth filtration and tangential flow filtration, and previously was involved in our Validation Laboratories for two years. Roberto previously supported the Quality Assurance of a pharmaceutical company for two years during college study. In his spare time, he enjoys music events, skiing and playing basketball.

Roberto Ciboldi

Collignon, Marie-Laure

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Senior Bioprocess Application Scientist


Dr Marie-Laure Collignon is a Senior Bioprocess Application Scientist for the cell culture technology team. For the last three years, she has been dedicated to training bioreactor customers, and providing advice on the transfer of their process into our bioreactor technology and process optimization. Marie-Laure holds a Master of Chemical Engineering from Liège University. Before joining us, she completed a PhD and a Post Doctorate at Liège University and University of Lorraine. She has many years experience studying the impacts of hydrodynamics inside stirred bioreactors into mammalian and stems cell cultures, which has allowed her to gain a broad range of bioreactor expertise. When she is not working, Marie-Laure enjoys spending time with her family and teaching scuba diving to new trainees in lakes in Belgium and the Mediterranean Sea.

Marie-Laure Collignon

Collins, Mike

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Senior Manager, Research and Development   


Mike Collins has worked with us for over 30 years, starting as an apprentice. In this time, he has filled a number of positions in laboratory, engineering and applications-based roles in industries spanning hydraulics, aerospace, water, and food and beverage before moving to biotech, within which he has worked for more than 15 years. Mike relocated from the UK to the US some years ago and is currently a Senior R&D Manager for the Process R&D group, managing the US team focused on continuous bioprocessing and gene therapy. Mike is an avid sports fan (watching mainly these days) balancing this with a lively young family.  

Mike Collins

De Backer, Stijn

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Senior Scientist, Scientific and Laboratory Services


Stijn is a Senior Scientist with the with the SLS Aseptic group, where he fills the role of the European SME for virus filtration and the global SME for air filtration. He graduated from HoGhent university with a BSc in Medical Laboratory Technologies after which he spent seven years as a Lead Tech for a CRO company before joining us in 2008. Stijn started working in an inside sales position before making the switch to Scientific and Laboratory Services in 2012. Outside of work he enjoys like coaching football and reading.

Stijn De Backer

Dharmasiri, Udara

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Senior Scientist, Scientific and Laboratory Services


Udara Dharmasiri is a Senior Scientist for the Process Development Services team. Udara has many years of extensive experience in molecular biology and analytical chemistry assay development, filtration process development and virus purification for clinical applications. Udara has a Ph.D. in Bioanalytical Chemistry from Louisiana State University and postdoctoral training in Immunology from University of North Carolina, Chapel Hill, US. Outside of work, Udara enjoys enjoys travel and sports.

Udara Dharmasiri

Glover, Clive

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Director, Cell and Gene Therapy


Dr Clive Glover is the Director of Cell and Gene Therapy. Clive leads our cell and gene therapy business. He has many years of experience in cell and gene therapy. His work has been published in numerous scientific journals, and he has presented at many conferences. Previously he was responsible for driving product development efforts around cell therapy at GE Healthcare and has also held positions in marketing and product management at STEMCELL Technologies. Clive holds a PhD in Genetics from the University of British Columbia. When not at work, Clive spends a lot of time singing in Welsh choruses and hiking the Welsh hills.


clive glover

Senior Bioprocess Specialist, Scientific and Laboratory Services


In this role, Sid acts as a technical consultant for biopharmaceutical manufacturing organizations aiming to scale up their production platforms to serve the Cell and Gene therapy industry. Sid has many years of experience with cell and gene therapy, including positions in process development and product lifecycle management at Juno Therapeutics and the Lonza Group. He has co-authored several peer-reviewed articles, multiple book chapters and holds one patent. Sid obtained his graduate and undergraduate degrees in Biomedical Engineering from Johns Hopkins University and the Indian Institute of Technology, Guwahati, respectively. In his free time, he enjoys funk and hip-hop music and spending time outdoors in the Pacific North-West.

sid gupta

Iwaniec, Aude

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Engineer II, Research and Development


Aude joined the Process R&D team in 2016. She is based in UK (Harbourgate, Portsmouth) and she specializes in sterilizing-grade filtration. During the last few years, she has gained experience in the filtration of various molecules and complex fluids including high concentration mAbs and liposomes. Aude graduated from the Swiss Federal Institute of Technology in Lausanne (EPFL) with a Master in Chemical Engineering. Outside work, she mainly enjoys dancing as well as traveling around the world.

aude iwaniec

Jackson, Nigel

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Principal Engineer, Research and Development


Since gaining his PhD in Biochemical Engineering, Nigel has many years of experience in Process R&D. Nigel has authored multiple publications and conference presentations demonstrating a deep understanding of virus filtration and general bioprocessing. He has directed this knowledge into helping us develop robust and effective new virus filters and many other products and applications. A Principal Engineer, Nigel has also recently taken on the role of Visiting Lecturer at University College, London. He is a keen footballer and plays weekly in a five-a-side team with colleagues and friends.

Nigel Jackson

Jarmey-Swan, Claire

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Global Product Manager


Claire Jarmey-Swan is responsible for the global product management of the sterile connector and disconnector product portfolio used in upstream, downstream and formulation and fill applications. She has over 20 years’ experience in the Life Sciences industry, holding positions of increasing responsibility in technical, marketing and product management. 


Claire holds a MBA from Southampton Business School, University of Southampton and a MSc in Microbiology from the University of Natal, South Africa. She has the status of C. Biol, MRSB (Chartered Biologist, Member of the Royal Society of Biology). Claire enjoys sailing, new cuisines and exploring new countries. 

claire jarmey-swan

Process Manager, Research and Development


Kyle joined us in 2013 as an R&D Scientist providing analytical support for cell culture projects and other applications. He then moved on to supporting a range of projects within our filtration portfolio (virus/sterile/air) before moving into focused work on modular products. Kyle is currently the Process Manager for our modular, bioreactor and mixer portfolio. Kyle received his Master’s degree in Bioprocessing from University College London. Outside of work he enjoys playing football, going to the gym, watching new movies and spending time with his family.

kyle jones

Joseph, Terése

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Senior Scientist, Research and Development


Terése Joseph is a Senior Scientist in in the Westborough, MA, US group supporting upstream and downstream cell culture specializing in cell biology and analytics. Her work includes 30 years of research experience in biopharma and biotech specializing in cell therapy from development stage to clinical studies. Her strengths include three-dimensional cell culture constructs for graft studies, media formulation, cell engineering, assay design and validation. She enjoys the networking that results from cross-training and collaborations. Terése received undergraduate degrees in cell biology, studied biochemistry and molecular biology at the graduate level at Boston University before matriculating into a Doctorate in Natural Medicine specializing in pharmacokinetic changes as a result of dysbiosis and effects on neurological signaling. When not at work, Terése enjoys yoga, craft beer, obstacle course runs, kayaking and hiking with her two teenage sons. She is enrolled in the Masters of Biotechnology Enterprise program at Johns Hopkins University.

Terése Joseph

Kang, Benedict

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Scientist I, Research and Development


Benedict provides analytics supports to various projects in the Research and Development by doing assay development and assay support. Prior to joining us, Benedict had many years of laboratory experience and worked at the Korea Institute of Science and Technology and Ajou University in South Korea. He received his Master of Science in Pharmacology from the University of Michigan at Ann Arbor and his Bachelors of Science in Biochemistry and Molecular Biophysics from the University of Arizona. He has had several scientific papers published and presented at numerous international conferences in his career. When he is not at work, Benedict enjoys cooking new meals with new recipes, watching new movies and reading articles with data.

Benedict Kang

Principal Scientist, Scientific and Laboratory Services


Denis completed his PhD in Biology and Biotechnology at Worcester Polytechnic Institute in Massachusetts and has been with us since 2017. He leads the scientific laboratory services team responsible for all field support activities related to continuous bioprocessing technologies and downstream automated solutions. Over the years, Denis held several scientific and management positions related to process development and early discovery research at contract research organizations as well as biopharma companies in the US. He has established a significant track record in completing projects related to drug discovery and continuous downstream processing. In addition, Denis is involved with the development of the regulatory support initiative for continuous bioprocessing. In his free time, Denis enjoys spending time with his family and teaching his two young daughters about nature and science.

Denis Kole

Lambropoulos, Alexander

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Bioprocess Specialist, Scientific and Laboratory Services


Alexander is a bioprocess specialist as part of the Scientific and Laboratory Services team, with several years of experience in the industry. He works with clients (typically in process development) that have drugs in the pre-clinical and phase I stages. Focused on working mainly with downstream technologies, he supports studies/experiments within the fields of gene and cell therapy, monoclonal antibodies, recombinant proteins, vaccines and other molecules. Alexander received his Master’s Degree in Materials Science and Engineering from Binghamton University, and his Bachelor’s Degree in Biomedical Engineering from the University of Rochester. When he is not working, Alexander enjoys playing soccer (and following other sports), exploring new music and traveling around the world.

Alexander Lambropoulos

Laskowski, Andrew

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 Manager, Field Application Team


Andrew Laskowski is the manager of the regional bioreactor field application team in the US and Western Hemisphere. He has been supporting our bioreactor and cell culture technology product portfolio in a scientific and technical capacity since 2013. Prior to joining us, Andrew worked in vaccine process development at Merck, antibody purification at Genentech and drug product formulation at Pfizer. Andrew holds biomedical and chemical engineering degrees from the University of Michigan, and in his free time, is an avid University of Michigan college sports fan.

Andrew Laskowski

Lefèbvre, Pascal

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Marketing Manager


Pascal joined us in 2014 as a global product manager for the iCELLis® Bioreactors portfolio through the ATMI acquisition. In this role, he was responsible for the development and promotion of bioreactors used for viral vectors. Since March 2019, Pascal is now field Marketing Manager, interacting with Benelux and Nordics sales hubs. With over two decades’ experience working in cell culture, Pascal previously worked with Sartorius Stedim Biotech and Lonza as a global product manager for biotherapeutic media and buffers. Pascal has a degree in biochemistry from University de Liège. When he is not working, Pascal enjoys running and playing tennis, managing a tennis club and acting as secretary and competitions manager, plus spending time with his five children.

Pascal Lefèbvre

Levison, Peter

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Executive Director, Business Development


Dr Peter Levison is responsible for developing strategic partnerships within the biotech community through the management of a network of global thought Leaders and collaborating organisations. He joined us in July 2003 having previously worked for Whatman and has over 25 years’ experience in the biopharmaceutical industry, holding positions of increasing responsibility in research and development, technical management and product management. He holds a PhD in Biochemistry from the University of Manchester and an MBA from the Open University Business School, UK. He is a member of various professional bodies and academic and industry advisory groups. In his spare time, Peter takes country walks throughout the South Downs and enjoys modern jive.

peter levison

Manager, Cell Culture Applications, APAC


Andrew brings many years of experience to us and is responsible for managing a team of bioreactor application scientists within the APAC region to support customers and commercial colleagues in upstream gene therapy, cell therapy and biologics applications. Prior to this, he managed a team of R&D scientists to provide cell culture media and process development services for customers. Andrew holds a PhD and BSc (Hons) from Murdoch University, Perth Australia. His research includes the investigation of the physiological importance of the proteins of interest of infectious and cancer diseases, completed as part of his postdoctoral fellowship, PhD and Honors degrees where he supervised PhD, honors and undergraduate students. Andrew has developed a patent and his work is published in several journals. When not working, Andrew enjoys fishing and family time.

Andrew Low

Mallory, Heather

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Senior Scientist, Process Development Services


Heather Mallory is a Senior Scientist in the Process Development Services team. Prior to this, she worked with monoclonal antibodies and recombinant proteins. She has several years of experience working with viral vectors for gene therapy including AAV, adenovirus, syndbis virus and lentivirus. She studied Biochemistry at SUNY Albany and Boston College. When not at work, Heather spends a lot of time hiking mountains with her two children, running and listening to NPR.


heather mallory

Manser, Britta

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Manager, Continuous Bioprocessing, Scientific and Laboratory Services


Britta Manser is the European Manager for continuous bioprocessing in the Scientific and Laboratory Services group. Britta leads a team of field support scientists responsible for the development, implementation and integration of continuous bioprocessing technologies. In her position, she has authored several book chapters and publications, presented on technology and industry advancements at different conferences and has an active role in industry groups. Prior to joining us in 2016, Britta obtained a master’s degree in Pharmaceutical Biotechnology from Zurich's University of Applied Sciences. In her free time, she enjoys trekking and skiing with friends and family in the Swiss Alps.

britta manser

Martens, Aernout

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Global Product Manager, Virus Filtration 


Dr. Aernout Martens is Global Product Manager, Virus Filtration. He holds a Master degree in Bioprocess Engineering and a PhD in Physical Chemistry. After his research on extracellular matrix ligand interactions, he started working with us in 2011 as a biopurification specialist, after which he specialized in virus filtration and in January 2016 became global product manager for the our virus filter portfolio - understanding the market needs and relaying them to the organization to create the products and tools that are really useful to pharmaceutical R&D and manufacturing. When not at work, he enjoys rock climbing, music and spending time with family.

Aernout Martens

McAlister, Morven

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Global Senior Director, Regulatory and Validation Consultancy 


Dr Morven McAlister is the Global Senior Director of the Regulatory and Validation Consultancy team. She joined us in 2001 and has held various technical leadership roles in microbial contamination control and has extensive experience with sterile and virus filtration applications, including test design, qualification, regulatory, and processspecific filter validation support. She is currently involved in applying Quality by Design (QbD) principles to new process applications, product and method development, as well as supporting microbial risk mitigation practices for end-users. She received her PhD in Microbiology from the Queen's University of Belfast, and completed her postdoctoral research at the University of Arizona. In her spare time, she enjoys gardening and spending time with family and friends.

morven mccalister

Mirzoyan, Albert

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Senior Manager – Global Planning & Business Operations

Albert Mirzoyan is a Senior Manager with our Process Development Services team, responsible for global logistics and project management across our PDS locations. He has many years of experience in the life science industry with extended knowledge in cell culture media and bioprocessing technologies. Previously he held positions in both product management and commercial functions at Corning Life Sciences. Albert holds an MBA from the University of Virginia Darden School of Business and a Bachelor of Science in Chemistry from the University of Mary Washington. Albert enjoys travel, sports, trying new cuisine and spending time with his family.

albert mirzoyan

Norris, Morgan

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Vice President, Marketing


Morgan Norris in the Vice President of Marketing. He is responsible for the strategy, outbound marketing, branding and product portfolio for the business unit. Morgan is a respected leader in the biopharmaceutical manufacturing space with over two decades of experience in biotech and pharmaceutical manufacturing. Morgan’s experience spans originator companies, contract manufacturing and suppliers with roles in technical, strategy, product management, marketing and business leadership. When he is not working or traveling Morgan enjoys spending time on the water, and at home with his young family.

morgan norris

Olson, Michelle

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Scientist, Research and Development


Dr. Michelle Olson is a Senior Scientist in the Process Research and Development team. She joined us in March 2019 and has taken leads in various projects from iCELLis quality to the Gene Therapy Production Platform where she is developing methods for AAV and lentiviral production and quantification. Michelle received her M.S. and Ph.D. in Chemical Engineering from Texas A&M University where she studied bioreactor optimization and polymicrobial biofilms of the gut microbiota. In her spare time, Michelle enjoys making fermented foods (sourdough bread!) and hiking.

michelle olson

Pedregal, Andreia

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Bioreactor Applications Manager (Europe), Scientific and Laboratory Services 


Andreia is the manager of the Bioreactor Application Scientist team in Europe. In her role she supports clients implementing our bioreactors for development and manufacturing of therapeutics focused on cell and gene, oncolytic, vaccine, monoclonal antibody therapies and others. Andreia hold a Master’s degree in Biotechnology Engineering from the Science and Technology Faculty of Algarve University, Portugal. She has many years of experience in mammalian cell culture, bioprocess design and optimization, acquired at her previous positions at the Laboratory of Animal Cell Biotechnology and Laboratory of Experimental Medicine from the private research university in Brussels, ULB. In her free time, Andreia loves travelling, exploring new cultures and beautiful landscapes.

Andreia Pedregal

Rose, Amanda

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Scientist I, Research and Development 


Amanda is a Scientist I, based in Westborough, MA, USA in Process R&D and supports upstream gene therapy projects. She specializes in cell culture and analytics, with an emphasis on viral methodology. She joined us in 2013 and has been involved in several projects spanning mAb optimization, microcarrier handling, and novel assay development. Prior to this, Amanda began her career at the New England Primate Research Center working on Simian Immunodeficiency Virus, then supported Wilms tumor research at the Mass General Cancer Center and continued with antibody development at ImmunoGen. Amanda enjoys spending time with her three children and watching animated films. 

Amanda Rose

Sanderson, Todd

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Senior Manager, Research and Development


Todd has been with us since 2006. He has many years of research experience with expertise in mammalian cell culture, process development and analytical method development. He currently leads the Gene Therapy Upstream Cell Culture and Analytics Team in the Process R&D group. He holds a B.S. in Biochemistry and B.S. in Psychology from Michigan State University. When not at work, Todd enjoys gardening and spending time with his young children.

Todd Sanderson

Schofield, Mark

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Senior Manager, Research and Development


Dr Mark Schofield PhD, has a background in molecular biology, protein purification and continuous bioprocessing. For the last few years Mark has been a Senior R&D Manager, leading the chromatography R&D bioprocessing team. His team has worked on an array of projects, spanning chromatography materials screening, continuous low pH virus inactivation, continuous chromatography and more recently gene therapy applications including the chromatographic separation of empty and full AAV capsids. Mark has a strong publication background spanning 20+ years. Mark is keen mountain biker and would ride his single speed much more often if his twins did not take up his free time!


Mark Schofield

Sokolowski, Dave

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Global Product Manager, Integrated Solutions


Dave is a Global Product Manager covering the Integrated Solutions program, responsible for marketing operations, outbound marketing and customer research. He joined us in 2016, bringing 11 years of both scientific and engineering experience in the areas of product development, project management, R&D and marketing. He holds degrees in both Microbiology and Mechanical Engineering from the University of Massachusetts, Amherst. In his spare time, Dave enjoys hiking, brewing beer and cider, and cooking various international cuisines using freshly grown ingredients from his garden.

Dave Sokolowski

Song, Benben

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Global Product Manager, Services


Dr Benben Song is the Global Product Manager for Services. She is globally responsible for product management of Accelerator™ Process Development Services, Accelerator Validation Services, the Accelerator Documentation Center and Training Services. Benben joined us in 2015 and has held multiple roles in leading the extractables and leachables validation studies on our products to ensure compliance with the latest regulations and evolving expectations for drug safety purpose. Prior to joining us, she managed government contracts on drug cardiotoxicity evaluation at the Stanford Research Institute. Benben holds a PhD in Biochemistry from Stony Brook University and has many years of experience in biotech. She has published over 18 articles in scientific journals and has been invited to present her work at many conferences. When not at work, Benben likes to spend time reading, hiking and participating in outdoor activities.


benben song

Scientist II, Research and Development


Ly Truong is a Scientist II in the PR&D Upstream Cell Culture team at Westborough, MA, US. Ly joined us in 2017 and has worked on various projects ranging from AWS perfusion to iCELLis bioreactor quality. Currently, she is working on qualifying the lentivirus Transduction Unit (TU) assay for functional lentivirus quantification. She received her Bachelor of Science in Biotechnology from Worcester State University. When not at work, Ly enjoys cooking, baking and taking her dogs on hikes.

Ly Truong

Turner, Steve

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Scientist II/Lab Manager, Research & Development


Steve joined us in 2009. Based at our Harbourgate facility in Portsmouth, he is currently Scientist II and manager of two laboratories. He works on a range of filtration projects incorporating liposome and emulsion production and analysis, making use of his expertise in nanoparticle production, particle sizing and characterization. He also performs filterability experiments using automated filter screening systems. Steve has a first-class BSc (Hons) degree in Molecular Biology from the University of Portsmouth. Outside of work, Steve enjoys motorcycling and owns a Harley-Davidson.

Steve Turner

Vallabhaneni, Deepika

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Scientist II, Research & Development


Deepika joined us in 2017 and works at our Westborough facility in MA, US as a bioanalytical scientist supporting upstream and downstream process development activities. She is experienced in the characterization of therapeutic proteins and monoclonal antibodies, withmany years of industry experience in method development, validation and in-process control of proteins. Deepika has a Masters in Analytical Chemistry from Governors State University. Outside of work, Deepika enjoys dancing and is a trained classical dancer.

Deepika Vallabhaneni

Walls, Stephanie

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Senior Specialist, Sales 


Stephanie is a Senior Specialist, covering the central United States. She started with us in 2016 as a Bioprocess Specialist within the Scientific and Laboratory Services group. Prior to joining us, she worked as a Process Engineer, a Process Development Engineer and as a Manufacturing Associate at Biogen. Stephanie holds a degree in Chemical Engineering from the University of Minnesota – Duluth. In her free time, she enjoys cooking and being outdoors, particularly camping, hiking and biking.

Stephanie Walls

Waghmare, Ruta

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Vice President, Scientific and Laboratory Services


Dr Ruta Waghmare is Vice President of Scientific and Laboratory Services. She is passionate about using science and engineering to enable the development of life-enhancing drugs, and leads a team of around 300 scientific experts. Ruta previously held senior positions at Millipore-Sigma/Merck including Senior Director for Marketing and Sales, Director of Emerging Biotechnology, Regional Sales Manager, Head of Chromatography (Americas), and Group Manager for Process Development Sciences. Ruta completed her post-doctoral research at the NIH (National Institutes of Health, Bethesda, Maryland) on protein purification and crystallization. She holds a PhD in Chemical Engineering from Iowa State University. Ruta has co-authored over 65 publications and conference presentations. She also served as an officer (including Chair) for Manufacturing Sciences and Engineering section for AAPS (American Association of Pharmaceutical Scientists) from 2012-17. In her spare time Ruta enjoys practicing yoga and is a qualified children’s yoga instructor. 

Ruta Waghmare

Senior Manager, Research and Development


With a PhD and 20 years’ experience in the biopharm industry, John joined us in 2011 as a Principal Scientist working on process analytics. He became senior manager in 2013 and leads teams involved in the evaluation of new products during development including filtration devices, bioreactors and other processing skids. He currently leads a team involved in external collaborations in gene therapy and continuous biomanufacturing. Before joining us, John worked with Cobra Biologics on diverse projects including the development of processes to manufacture delivery systems for non-viral gene therapy, biopharmaceutical QC and biotherapeutic process development. Outside of work, John enjoys ballroom and latin dancing.

John Welsh

Williams, Alex

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Associate R&D Engineer, Research and Development


Alex Williams is an Associate R&D Engineer. He works on developing bioreactors, primarily the Allegro™ STR bioreactor range. Originally from Manchester, Alex joined us after graduating from the University of Sheffield with a MEng in Bioengineering. He is an Associate member of IChemE. In his spare time, he enjoys music events, lacrosse and playing squash.

alex williams pall

Zimmerman, Karen

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Account Manager, Mid-Atlantic/Eastern Canada Hub


Karen is an Account Manager serving customers in Michigan, Western New York, and Western Pennsylvania.  She has been with us since 2018 and prior to joining the commercial team, worked in Process Development Services where her background in cell culture, protein purification, analytics and assay development were utilized. Karen has a Master’s Degree in Chemistry from University of Michigan and over ten years of laboratory experience and when she isn’t working, loves to travel, spend time with her family and read.

Karen Zimmerman

Zourna, Kalliopi

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Process Manager, Research and Development 


Dr Kalliopi Zourna joined us in 2012 and has held technical roles, supporting our process chromatography column and filtration technologies. Kalliopi is currently the Process R&D Manager for our filtration portfolio (sterile, virus and air). Her current research/activity is focused in monoclonal antibodies, drug delivery (liposomes) and gene therapy products sterile filtration. Kalliopi received her MSc in Biochemical Engineering at UCL and her PhD in Chemical Engineering at University of Birmingham in UK, where she focused in protein downstream processing and nanotechnology. In her free time, she enjoys spending time with her toddler Pavlos. 

Kalliopi Zourna