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

Derk Arts
Founder, CEO

Epidemiologist and founder of Castor


Medical informatics graduate who oversees all the technological development of Castor


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

Lieke Helsper
People & Operations Manager

MSc in Science & Innovation management

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

Junior Full Stack Developer

Junior full stack developer with a background in Medical Anthropology

Product Owner Castor SMS

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

Senior Software Engineer
Medior Software Engineer

Patrick is a software engineer specialized in web development.

Senior Front End Developer

Sencha Ext JS specialist

Business Development Representative

International oriented and passionate about improving research quality.

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 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.

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.

Senior Software Engineer

Passionate about technology and an advocate for comprehensible and maintainable code.

Support Intern

Medical Informatics student at the University of Amsterdam. Doing research on how we can optimize support for customers.

Medior Developer
People & Operations Specialist

Passionate about people, eager to help both future and current Castorians!

Content Marketing & Social Media Intern

Growing the Castor community with creative and engaging content.

Software Developer Intern

Squashing bugs and adding new features to Castor EDC.

Product Management Intern

Striving to add real value to where users need it most. Studying Management Engineering at the University of Waterloo.

Security and Network Support

Keeping Castor systems safe and humming along!

Business Development Representative

Passionate about healthcare innovation and entrepreneurship.

Finance Manager

Passionate about Finance and Scale-ups, making sure all the numbers make sense.

International Sales & Clinical Epidemiologist

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


Co-founder and advisor since Castor’s inception

Head of recruitment

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