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Tech Lead Data Science at Coolblue (Rotterdam, Netherlands)

As a Team Lead Data Science at Coolblue, you're responsible for building and managing a team that excels in delivering high quality, efficient software.

What you tell people at parties

I'm the Nostradamus of data. I analyze data sources in order to understand the past and predict the future.

What you really do

  • You are the line manager and the technical lead of a team of Data Scientists.
  • You support your team in delivering new functionalities as quickly as possible, meeting both expectations and quality standards.
  • You support team members in defining their goals and the strategy to achieve them.
  • You help bring Data Science at Coolblue to the next level by delivering high performing scalable data driven solutions.
  • You create Machine Learning solutions & Statistics & Data mining.
  • You understand and promote Machine Learning, its architecture, and the advantages it could bring.

How you do it

  • You've mastered the field of statistics in theory and practice, and have a good understanding of the analyses that have to be done and the expected results.
  • You actively take part in the Sprint and participate in all Scrum events, which provide you with knowledge and insights needed to help the team improve and achieve its Sprint goals.
  • You contribute to a solid data science delivery by selecting the right tools and techniques for the job.
  • You review code, promote best practices, and maintain a high level of craftsmanship as well as pragmatism. You can program if needed, and lead by example.
  • You actively coach your team members and continuously provide feedback to help them do things a little bit better every day.
  • You support the Product Owner with aligning functional and technical needs.


You'll be part of the Data Scientist team, which consists of a Data Scientist, a Scrum Master, and a Product Owner. They have different levels of experience and you'll support them in becoming even more amazing than they already are.

A day at the office

Your day starts with a quick revision of our monitoring report. You've spotted some inconsistencies and decide to take a closer look. You discover some unexpected figures in our forecast monitoring, but those shouldnt negatively affect our operations. Even so, you decide to inform the team during the daily stand-up and create a story in your backlog.

Since last week, a new request has emerged from a Domain Boss in Marketing. He wants to know if Data Science can improve the current recommender system. Today, you have a few hours to work on it, so youve decided to research the best way to create a Proof of Concept for a new recommender systems and you start with reading literature related.

Whew, its already lunchtime. You go outside for a walk with Haseeb and Andres to grab a bite. After lunch, you work on testing some Regularized Regressions for predicting sales and summarize the results. After that, its time for your coaching session with Vitali.

Time to relax. After a game of table tennis with your colleagues, there's 1 more meeting you have to attend. You share your findings and results with the stakeholders before discussing a follow-up proposal with Matthias, Haseeb, and Madeleine (members of the Data Science Core team). Time to go home!

What we're asking

  • A university-level degree, MSc. or PhD. in Mathematics, Computer science, Statistics or a related field.
  • At least 8 years of relevant experience in a similar environment (experience in academia only isnt enough) and 2 years in a leadership position.
  • You have experience in coaching other Data Scientists.
  • Scrum/Agile comes naturally to you.
  • You lead from the front. You guide by example, not just by words.
  • You have expertise in Statistics & Data mining solutions and implementing Machine Learning services.
  • You have experience in writing and deploying robust, structured code within extended production environments (preferably Python or R).

What we're offering

  • Money.
  • Over 30 training courses at our own Coolblue University.
  • A 10% discount on all of our products.
  • 25 leave days. As long as you'll promise to come back.
  • Travel allowance and a pension plan.
  • An office at the best possible location. It's only a short stumble away from Rotterdam Central Station. Or a 2-minute walk.
  • An international working environment. With colleagues from places like Belgium, Spain, Australia, Mexico, and Italy.
  • Relocation assistance, from A to Z (if you live abroad).
  • Discount on a new bicycle. Because that's how we roll.
  • Plenty of room for creativity.

by via developer jobs - Stack Overflow

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