Castor is created and maintained by an international team of Medical Research and IT enthusiasts Рclick on a profile to learn more about us.

Derk Arts
Founder, CEO

Epidemiologist and founder of Castor

Sebastiaan Knijnenburg

Medical informatics graduate who oversees all the technological development of Castor

Rob Konterman

Ex-Consultant of The Boston Consulting Group (BCG) responsible for accelerating growth

Lieke Helsper
Customer Success Manager

MSc in Science & Innovation management, keeps our customers happy

PhD Researcher

Focuses on creating a scalable solution that will aid in the standardization of medical research data.


Developer specializing in PHP, MySQL, JavaScript, C, C++ and Java

Quality Assurance

Makes sure all Castor releases are top-notch!


Tanu has experience of working in startups as well as large corporations


Gaurav is an expert on frontend technologies specializing in Sencha ExtJS

International Sales & Clinical Epidemiologist

Bart gives Castor’s accounts abroad advice on epidemiological statistical questions

Sabrina Edinger
Junior Full Stack Developer

Junior full stack developer with a background in Medical Anthropology

Frouke Karel
Product Owner Castor SMS

Enthusiastic health scientist who makes sure that Castor SMS meets all the user requirements

Medior Software Engineer

Patrick is a software engineer specialized in web development.

Senior Front End Developer

Sencha Ext JS specialist

Legal Counsel & Compliance Officer

Legal Counsel & Data Protection Officer, responsible for Privacy & Data Protection Compliance at Castor EDC

Office Manager | Executive Assistant

Keeps things going at Castor!

Business Development Representative

International oriented and passionate about improving research quality.

Business Developer

Serial Entrepreneur and Business Developer helping Castor EDC grow.

Marketing and Growth Intern

Psychology student from the University of Waterloo. Responsible for growing and maintaining Castor’s online presence.

Product Management Intern

Management Engineering student. Responsible for overseeing sprints as well as product development.

Statistical Development Intern

Statistics and Health Informatics student, helping to develop new analysis tools for data in Castor.

Senior Product Owner

User centric product strategist.

Customer Success Specialist

Supports our customers and translates customer needs into viable solutions

Lead Quality Assurance Engineer

Ensures that users get a high quality product without bugs.

Senior Digital Designer

SaaS design expert bringing usability and design thinking to Castor.


Co-founder and advisor since Castor’s inception

Head of recruitment

Specialized recruiter helping Castor to select the right people for the job