Data Scientist

I’m interested


Krakow, Poland

Seniority level


Workplace policy


Job description


We've got a world of data at our fingertips and we want you to shape it.


Krakow office based, with up to 80% home working


About us 

Working with us you’ll be at heart of the technological revolution of one the world’s most trusted betting and gaming companies. We deal with projects ranging from widgets, desktop or mobile casinos and betting sites… just to name a few. We process 500 online Sportsbook bets per second each Saturday, that’s the same as orders processed by Amazon UK, on its busiest day of the year. We deal with more than 20 million users and 160 terabytes of data daily. Impressed? You can be sure there are many more challenges waiting for you.

Your role in the team

As a Data Science Modeller supporting our Customer Lifecycle Management (CRM) Team, you'll have a fantastic opportunity to immerse yourself in large volume data at an exciting time in our digital transformation, as we build a new Smart Data Platform on Snowflake / AWS and develop models in Databricks and Python.

Reporting into a Head of Data, you’ll be working as part of a larger team of Data Modellers but with your feet firmly planted in all things CRM. You'll focus on understanding and interpreting data and underlying trends to deliver the best outcomes for William Hill.

You won't be a shy, retiring wallflower. This is a high profile role with a significant budget and close working relationships with our wider teams and you'll use your data and models to influence our next steps.

You'll scope, build and deploy models and solutions in R and Python; working in cross-functional squads in an agile way. Your main focus will be understanding drivers of customer value; predicting future value and using models to optimize spend and strategies. Your job will be to optimise that budget and show benefits and ROI in everything you do.

Relationship building is at the heart of your role and you will bring data and models to life for your internal stakeholders. From requirements gathering and data explorations, through to validation, deployment and measurement you’ll work with internal stakeholders including CRM, Marketing, Product and Trading to scope projects and work on all stages of modelling and analysis.

Skills needed 


  • Snowflake, Databricks, Sagemaker
  • Educated to degree level in a mathematical, numerate or analytical discipline

Forward thinking and pro-active in your approach, you'll be seeking an opportunity to use both your technical and your people skills, Naturally inquisitive and ready for a challenge, you’ll love exploring datasets and be excited by the prospect of working with Sports and Gaming betting data. A strong communicator, you’ll be able to convey technical ideas effectively to influence stakeholders at a senior level. You'll be a confident presenter, adept at visualisation and able to partner and engage senior managers across the business to guide strategic direction.

 A strong SQL coder, you’ll be comfortable working with large datasets and you’ll be confident in extracting, manipulating and analysing date using SQL / Excel. With a working knowledge and demonstrable experience of predictive modelling in a tool such as Python, you’ll be able to hit the ground running and deliver real value to our business You’ll be able to visualise data in charts, graphs and build compelling PowerPoint presentations

With a track record of high performance in Data Science and a breadth of experience across relevant disciplines including CRM and analytics, you’ll be confident, pro-active and driven, eager to explore new and innovative ways to be even better at what we do.


What we offer

  • Development opportunities, including IT conferences, internal training, lunch and learn sessions and an individual development budget.
  • Long term flexible working practices - Our employees have the opportunity to work from home with some office time built in to ensure we get some face to face collaborative team time
  • Possibility to work with latest Cloud technologies Growth within technical area and leadership – it is your choice where you want to go
  • Flexible employment (B2B or Employment Contract to choose from)
  • Medical insurance and multisport pass for  contract of employment
  • IT conferences, internal trainings, lunch and learn sessions and an individual training budget