Director of Data Science (United States or EMEA)

Who is Castor?

At the moment, 2.2m patients have been using directly or indirectly Castor technologies and through this we have collected more than 250 million data points. Our Data and Analytics team is the heart of Castor’s vision: making clinical research data reusable, a premise that is still new to our industry.

Castor is a leading cloud-based clinical data platform working with some of the world’s largest pharmaceutical companies, 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 (decentralized), 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 research data capture system available for free for all COVID-19 research projects. Castor is supporting more than 200 COVID-19 studies across the world, including the World Health Organization’s SOLIDARITY trial. With more than 12,000 currently enrolled patients out of a planned 15,000, 2,145 investigators, and 553 sites across 30 countries currently participating, efficiently capturing and centralizing this data is critical.

The opportunity: Lead Castor Data Insights team

Castor is rapidly growing, so is our data volume. At the moment, 2.2 million patients have been using directly or indirectly Castor technologies and through this, we have collected more than 250m data points. Our Data and Analytics team is the heart of Castor’s vision: making clinical research data reusable, a premise that is still new to our industry. As one of the top (decentralized) clinical trial technology providers, Castor is determined to continue to invest heavily in its Data and AI capabilities, enabling the ability to offer AI-driven Clinical Trial solutions to our clients.

The Role

What you’ll do

As a Director of Data Science, you’ll be at the forefront of bringing a clear vision and implementing a strategy for data insights at Castor, by:

  • Hiring, developing, and further building Castor’s data science team

  • Taking ownership of the entire data science workflow including project scoping, exploratory data analysis, model development, deployment, and monitoring

  • Plan, deliver, and maintain Machine Learning solutions, in close collaboration with Product and Engineering teams

  • Positioning our data solutions in the market and engaging with key internal and external stakeholders

What you’ll bring

You are a result-driven person who likes to solve problems and is passionate about artificial intelligence and data. You have a proven successful track record in data science, data engineering, and machine learning.

You definitely have:

  • Proven track record with building your own data science/machine learning pipelines

  • Solid understanding of semantic-/linked data principles and leveraging this type of data for ML/AI purposes

  • Leadership experience in scaling and managing data science/machine learning teams

  • Experience in working with our tech stack:
    • Castor’s regular stack consists of PHP, MySQL/PgSQL, and Javascript. Exploratory data work has been supported with Go, Apache Jena, and Anzograph, but we are open to exploring other technologies.

    • Most of our software runs in Microsoft Azure

It would be good if you had

  • Experience in working with (sensitive) clinical research data

  • You are passionate about artificial intelligence and follow the latest news about the field

What you’ll learn

We’re on ‘full power mode’ and scaling up at an exponential rate and the opportunities for you and the data insights team are endless, including:

  • Build on top of Castors existing infrastructure new platform features and data analysis capabilities that allow our clients to run the future of clinical trials (i) deploy synthetic control arms, (ii) drive computational clinical trial automation, (iii) create enriched clinical research data insights, speeding up the R&D processes

  • Create a significant impact on patients' lives and clinical research in general, by optimizing clinical trial processes, enabling our clients to do clinical research more cost-effective and safer.

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:

  • A flexible and remote working opportunity (in the U.S or Europe)

  • A competitive salary and a guaranteed 'happy holidays' bonus

  • A €/$/£ 350 ‘remote rocket boost’ payment to help you get set up for success

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

  • Up to 30 days annual leave (including/not including national holidays depending on location)

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

  • A 401K savings plan with competitive employer contributions (for US-based employees)

  • A pension plan including employer contributions (for Europe based employees)

  • A great health benefits package (for US-based and some Europe based employees)

  • Flexible approach to working - nobody is tracking your time

  • A MacBook or Dell laptop, we’re a tech start-up after all ;)

  • 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!

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