Research Scientist

About the company

SentryX is a spin-off of the UMC Utrecht and develops a local non-opioid solution for pain after musculoskeletal surgery. We are a young and dynamic start up consisting of a small team of 12 people and are growing fast. We are looking for a skilled Research Scientist to help us in the lab in developing our exciting new product. Have you always wanted to work for a dynamic startup? You might be the person we are looking for!

About the position

As Research Scientist, you are the hero in our lab who develops analytical methods and delivers solid evidence to ensure that our invention quickly finds its way to the patient. You work to turn conceptual products into actual formulations and think of new concepts to expand our product portfolio. You are experienced with a variety of analytical instrumentation such as HPLC, TLC, UV, mass spectrometry and electrophoresis and like to train new talents.
After joining an enthousiastic team of specialists, you will be helping us by performing experiments to characterize our lead product, find working formulations for our early stage products and develop analytical methods that will be used for QC testing.

About you

You are an enthusiastic person that enjoys working on a wide variety of topics. You enjoy standing in the lab running experiments and are able to MacGyver whatever you need to get the job done. You are curious, structured, precise and committed to creating solid data that we can use to get our product to the market.
You have a PhD in (polymer) chemistry or material science and (research) experience in medical, pharmaceutical or related areas. You have knowledge of analytical chemistry and preferably of (bio)polymers, and like to work in a team full of enthusiastic people.
Professional proficiency in English is required for this position.

Do you like working on a game-changer in post operative pain treatment, or like more information about this vacancy? Send an email to

We offer

  • Good salary
  • Flexible hours
  • Team spirit
  • Challenge
  • Medical/ Society impact
  • Learning and personal growth
  • Bureaucracy
  • Boring

Dr. Vaccaro has served as the president of the Rothman Orthopaedic Institute since 2014, and is the Richard H. Rothman Professor and Chairman in the Status of Orthopaedic Surgery, and Professor of Neurosurgery at Thomas Jefferson University in Philadelphia, Pennsylvania.

He is the President-elect of Cervical Spine Research Society (CSRS), 2019. He was the recipient of the Leon Wiltse award given for excellence in leadership and clinical research for spine care by the North American Spine Society (NASS) and is the past President of the American Spinal Injury Association and the Association for Collaborative Spine Research.

He has over 730 peer reviewed and 200 non-peer reviewed publications.  He has published over 346 book chapters and is the editor of over 55 textbooks and co-editor of OKU-Spine I and editor of OKU-8.  Dr. Vaccaro also serves as Co-Director of the Regional Spinal Cord Injury Center of the Delaware Valley and  Co-Director of Spine Surgery and the Spine Fellowship program at Thomas Jefferson University Hospital, where he instructs current fellows and residents in the diagnosis and treatment of various spinal problems and disorders.


Raymond Schiffelers is professor of Nano Medicine at the faculty Clinical Chemistry and Hematology at the UMC Utrecht. He is specialized in drug delivery and drug targeting. Currently he coordinates the H2020 B-Smart program and participates in several EU and national projects on nano-medicine.


Professor Jos Malda is Head of Research at the Status of Orthopaedics, University Medical Center Utrecht and the Status of Equine Sciences, University of Utrecht. He also leads the Utrecht Biofabrication Facility. He is a long-standing Board member of the International Cartilage Repair Society and President of the International Society for Biofabrication.


Marianna Tryfonidou is professor of the Orthopaedics section of the department of Clinical Sciences of Companion Animals.

She is a specialist veterinary surgeon for companion animals and researcher into tissue regeneration. She coordinates theiPSpineproject that was recently awarded €15 million under the Horizon 2020 programme, towards researching a solution for chronic lower back pain.


Bas Oosterman is co-founder and CEO of SentryX.

Before he served as Chief Operating Officer of Julius Clinical and worked for Philips Electronics in various positions. He studied econometrics, received his PhD degree in Management and Organization, and is a (six sigma) Black Belt. His PhD thesis dealt with speeding up the time-to-market of new product innovation projects.


Jorrit-Jan Verlaan is co-founder and CTO/CMO of SentryX.

Sinds 2010 is dr. Verlaan werkzaam als orthopedisch chirurg in het UMC Utrecht. In hetzelfde centrum is hij (cum laude) gepromoveerd en opgeleid. Afwijkingen van de wervelkolom op basis van ongevallen, stofwisselingsziekten en, voornamelijk, oncologische aandoeningen behoren tot zijn terrein. Dr. Verlaan is actief in basale en toegepaste wetenschap en begeleidt meerdere PhD-studenten. Hij is (co-)auteur van meer dan 75 internationale peer-reviewed artikelen en vijftien hoofdstukken in internationale vakboeken. In de functie van opleider draagt hij zorg voor de ontwikkeling van assistenten in opleiding tot orthopedisch chirurg.