Machine Learning Engineer



Looking for new opportunities in your career? Wherever you’re heading, let’s go there together.
You´ve probably already met us. 
Maybe you´ve stopped by for a coffee, fueled up your car or grabbed something to eat on the go. Then you know what Circle K is all about. Making everyday life easier for people all over the world. 
We´ve grown into a successful global company with over 15.000 stores in 24 countries, serving more than 6 million customers each day. In all, we have more than 120.000 people working at our stores and support offices.


In Circle K Business Centre, in Warszawa, which is part of our SSC structures, we provide IT services for Circle K in Europe, US and Canada. We have different functions here: Service Desk, Infrastructure, Network Operations, Development but what we have in common is the fact that no matter what we do, we understand the world we live in. We can see how fast it changes and how fascinating this can be. Curiosity and openness drives us towards new ideas, innovations, new technologies.


Circle K is building an exceptional data platform and machine learning solutions to support our growth ambitions. We are now looking for an experienced Machine Learning Engineer to join our Machine Learning Center of Excellence.

For the right candidate, Circle K can offer an exciting position in a team building solutions with global reach. We develop sophisticated applications backed by data and machine learning.



  • Prototype, build, deploy and manage machine learning as well as optimization models.
  • Contribute to creation of high-quality data pipelines as well as data profiling and pre-processing.
  • Work with other engineers, researchers and business partners to solve real-life, challenging business problems.




  • Master’s degree in computer science, mathematics or operational research from a renowned university.
  • 3+ years of relevant professional experience.
  • Strong knowledge of machine learning and statistical modeling.
  • Experience with programming languages (Python, R, SQL).
  • Strong analytical and strategic skills with ability to communicate clearly.
  • Fluent in spoken and written English.
  • Knowledge about Agile development methods like Scrum and Kanban.


OUR TECH STACK: Microsoft Azure (incl. but not limited to: SQL DWH, SSAS, Functions, Docker, DevOps), Python (3.x), Spark (Databricks), R,, Git, shell scripting.




  • Annual bonus
  • Private medical care
  • Multisport
  • English lessons subsidized by the company
  • Group insurance
  • Attractive discounts for products and services at our stations
  • Employee stock purchase plan
  • Friendly work atmosphere & Integration events
  • Modern and convenient office that you can virtually visit here -
  • Trainings & possibility to develop skills in a wide international environment


You will not be expected to travel these days anywhere, you may work from home, our teams are working remotely.

When working with us you can depend upon it that you will not be judged on the grounds of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. Oppositely – we believe that our diverse and inclusive culture helps us create an amazing atmosphere where everybody feels welcome.  
Check it here: 





We know great companies are built from within, by great people like you. Come grow with us!
We´re looking forward to your application.