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For over 80 years, GfK has been a reliable and trusted insight partner for the world’s biggest companies and leading brands who make a difference in every consumer’s life - and we will continue to build on this. We connect data, science and innovative digital research solutions to provide answers for key business questions around consumers, markets, brands and media. With our headquarters in Germany and a presence in around 60 countries worldwide, you benefit from our global company with a diverse community of ~9,000 employees.

Harnessing the power of our workforce, the greatest asset we have is our people. As part of GfK, you can take your future into your own hands. We value talent, skills and responsibility and support your development within our international teams. We are proud of our heritage and our future: Currently we are in the latter stages of a transformational journey from a traditional market research company to a trusted provider of prescriptive data analytics powered by innovative technology. This is only possible with extraordinary people and this is why we are looking for YOU to help create our future. For our employees as well as for our clients we pursue one goal: Growth from Knowledge!

Job Description

We are building end-to-end, data-driven products using high performance computing solutions on top of our own big data environments that collect, pipeline, mine and aggregate data at petabyte-scale.

And we, the Global Data Science team, sit right there in the engine room, developing innovative and prescriptive analytics solutions in an agile way, using our unique data assets. A perfect playground for creative minds who have fun shaping things!

Our projects are challenging - so it's quite likely you need to leave your comfort zone to deliver compelling solutions. Fortunately, we have a team of over 60 Scientist in Nuremberg, Warsaw and London with very diverse backgrounds. So you'll always find someone who is able and happy to help. In our team, everybody is eager to learn - and share!

We are a team of 80+ data scientist, 10+ on the ground in Warsaw . We work alongside Marketing Scientists in global and regional teams across consumer panels. Our panels have been growing and developing constantly, pleasant changes never end, hence some of our team members have been working for GfK for over 10 years!

As a Data Scientist in our Warsaw team, you will:

Be part of a cross-functional development team, providing guidance and vision to other data scientists, and working hands-on with machine learning engineers, developers and client solution experts on delivering our end-2-end analytic solutions that will make us the indispensable data and analytics partner for the durable goods and technology industries. It will be your responsibility to work on the product functionalities, data/analytic/algorithmic requirements, to conduct PoCs and at a later stage to work on high-performance implementations.

Responsibilities will include:

• Create and improve methods and tools and contribute to best practices in the area of Data Sciences
• Contribute to data science projects by developing and implementing data science & machine learning models that are reproducible, well documented and follow prescribed coding guidelines
• Create product driven data science solutions by closely collaborating with product manager/ owner OR Consult internal clients on Data Science related issues
• Participate in Communities of Practice
• Support the creation of input for client proposals
• Present GfK’s Data Sciences expertise at conferences and workshops
• Foster Data Science related knowledge exchange within GfK

Now that we've introduced you to the position as Data Scientist, what skills, qualifications and experience should you have?

• Ability to fluidly communicate in an English business environment
• Typically 4+ years of work experience
• Solid knowledge of Python and the respective development tools/IDEs (e.g. Jupyter, PyCharm)
• Experience working with multiple data storage platforms (e.g. Hadoop components like HDFS, Hive or traditional DBMS) and the ability to access and extract data through optimized SQL queries
• Deep knowledge of statistical concepts like weighting, Linear Regressions etc. and detailed understanding of more advanced modelling methods like Random forest etc.
• Expert statistical skills. Either in survey statistics (sampling, non-response adjustments, Bayesian statistics),or econometric modeling (program evaluation, forecasting, economic theory, panel data),or observational causal inference (potential outcomes, structural equation models, instrumental variables) or experimental design.
• Wide experience in working with GIT and with Unit Tests preparation
• Ability to work without supervision, help other team members with errors/ tool setup and constantly looking to learn and improve

Besides the things we really expect you to have, there are some things which would be amazing if you have experience with them as well:

• PhD or Master degree that reflects strong statistical / mathematical / computer science skills
• Ability to think creatively in addressing analytical objectives
• Familiarity with cloud computing environments (e.g. AWS, GCP)
• Ability to estimate the complexity of a DS solution compared to value provided and inform project planning
• Proven client facing skills
• Knowledge of agile development frameworks (Scrum, SAFe)

We offer an exciting work environment that brings people together. We encourage an entrepreneurial and innovative spirit. We make use of the latest digital technologies. We are looking for self-starters, who accept challenges and create solutions.

Can there be a better place to take center stage in the digital revolution? We are excited to get to know you!

We are an ethical and honest company that is wholly committed to its clients and employees. We are proud to be an inclusive workplace for all and are committed to equal opportunity in employment which focuses on all of our employees reaching their full potential. At GfK we work collaboratively with our colleagues but offer a flexible working approach, including dividing our time between office & remote working as well as the opportunity to flex our working hours around team core hours.

We offer an exciting work environment that brings people together. We encourage an entrepreneurial and innovative spirit. We make use of the latest digital technologies. We are looking for self-starters, who accept challenges and create solutions.

Can there be a better place to take center stage in the digital revolution? We are excited to get to know you!