UX Copywriter (EMEA)

Who is Castor?

"At Castor, it’s incredibly humbling to work on a product that actually delivers a true benefit to the world. Our user-focused products are advancing the discovery of evidence that cures diseases."

David Mitchell, Head of UX & Design

Castor is a leading cloud-based clinical data platform working with some of the world’s largest medical device companies, biopharma, and renowned academic institutes.

We simplify the clinical trial process, from recruitment to analysis, with user-friendly, patient-centric technology. Our mission is to bring medical research into the digital age. Why? Because medical research is still largely run using free-text, paper, and legacy technology.

Our self-service platform enables our users to run remote, device-enabled, patient-centric trials. By helping our users capture high-quality data and making it machine-readable, we are fundamentally changing the flawed evidence-based medicine process.

How is Castor supporting the Coronavirus crisis?

Castor has joined the global fight against the Coronavirus by making our tools freely available for all COVID-19 research projects. Currently, Castor is supporting more than 250+ COVID-19 studies across the world, including the WHO’s Solidarity trial.

The Role

What you’ll do

As our UX Copywriter, you’ll be collaborating with Product Owners, Release, and Product Managers to completely own our product messaging to customers. Your key areas of work will be: focus on function and usability of and bring clear communication from the product department to the customers. You’ll do it by:

  • Work with PO’s and Release Manager to create the monthly release notes to customers across all the products, informing the release communications: e,g the knowledge base, in-app, and email communications. Determining the release communication framework (audience, cadence, medium)

  • Develop/inform Castor’s Product Tone of Voice guide, and how this evolves and adapts at varying touchpoints throughout the customer journey;

  • Working with Localisation to ensure messaging and Product Tone of Voice is kept consistent across all languages

  • Review current product UI and design concepts align on terminology and continuity to user journeys (Microcopy);

What you’ll bring

You have prior experience occupying a similar role in a fast-paced environment. You consider yourself a self-starter and you are happy to work independently. In addition to this, you also bring:

  • Excellent level of written English

  • Experience occupying similar role at SaaS organisation, within a regulated industry domain (e-clinical background is a plus)

  • Confidence with naming exercises, positioning language, writing headlines and tag-lines;

  • Ability to thrive in a fast-paced environment and drive success;

  • Experience with technical systems and how to communicate about them;

What you’ll learn

It’s a crucial time for Castor. We’re on ‘full power mode’ and scaling up at an exponential rate. In your role, you’ll have the opportunity to:

  • Leverage UX copywriting expertise at Castor by being the first hire for this role

  • Grow in your role, define best practices and lead with full support from your team

  • Be a core contributor to our customer messaging

  • Be involved in maximising the impact of medical research and improving healthcare

What you’ll get:

At Castor we truly live and breathe our core values, believing we can achieve anything with a healthy and happy team.' With this in mind, we offer the following benefits:

  • Awesome new office near Amsterdam Amstelstation - the Castor Burrow!

  • Want to spend less time at work? We offer contracts between 32 - 40 hours per week

  • A competitive salary plus a guaranteed happy holidays bonus

  • Investing in our talent with a strong Employee Stock Option Plan

  • 30 days annual leave (plus national holidays)

  • Interested in ‘lifelong learning’? You’ll love using our development and training budget!

  • We love good food! So, we provide lunch and healthy snacks in the office

  • Flexible approach to working - nobody is tracking your time except you

  • A new MacBook or Dell laptop

  • Like to feel zen? You’ll love our company subscription to Calm for meditation and yoga

Want to know more? Check out the role profile for some further insights, or apply now!

Castor continues to grow as an Equal Opportunities Employer. We strongly encourage applications from women, people of colour, and people from the LGBTQ(+) community. In your application, please feel free to share the pronouns you use (for example she/her/hers, he/him/his, they/them/theirs, etc).

Our Interview Process


Fill out a short application on our careers website.

Telephone Call
Telephone Call

If your application is successful, we’ll invite you to an intitial call with a member of our talent team.

Manager interview
Manager interview

Great news! You’re invited to meet the hiring team.

Interview Day
Interview Day

Now we’ve got even better acquanted, we’d like to invite you to a final stage interview day.


Congratulations! We’re making you a formal offer to join as our next Castorian!

Meet Your Future Colleagues

Nadine Verhoek
Nadine Verhoek
Visual Designer
Frouke Karel
Frouke Karel
Product Owner
Sébastien Bohn
Sébastien Bohn
Head Of Product Management
© 2021 Castor Careers