Lead Data Scientist (Ranking)

Lead Data Scientist (Ranking)

Remote Poland, PolandOLX – Data Science and Analytics / Full-time / Remote WELCOME TO OLX At OLX, we work together to build a more sustainable world through trade .We make it safe, smart, and convenient to buy and sell cars, find housing, get jobs, buy and sell household goods, and more. Our colleagues around the world help to serve millions of people around the world every month, through its well-loved consumer brands including OLX, Otodom, Property24. Join OLX and see how far you can go . JOIN THE OLX RANKING DATA SCIENCE TEAM  The Ranking Data Science team at OLX is responsible for building and scaling ranking algorithms across OLX Europe. Our main goal is to help our stakeholders increase efficiency and performance by delivering state-of-the-art LTR algorithms across our platform to serve our customers when looking for items in our vast catalog. In a nutshell, you will be exposed to projects such as : - Multiobjective optimisation (e.g., optimize for more than one revenue stream)- Personalisation (user personalisation)- LTR Framework (ability to train models capable of optimizing specific targets based on varying contexts within OLX’s sectors like Motors and Real Estate)- Semantic Search (Integration and optimisation of the end-to-end search flow)- etc..Our team collaborates with product and tech teams from OLX, as well as the Motors and Real Estate verticals like Otomoto and Otodom, across the entire EU region. This means that our solutions need to scale to millions of data points and need to be designed to be reused in markets with similar characteristics. We think of experimentation as a tool to learn what our users want. We always start simple and fail fast. This way, we can create solutions that can be adapted to every market.

What you will be doing :

• Work in multi-functional teams with people from different backgrounds to build our Ranking algorithms, developing further our LTR Framework
• Partner with our Platform teams to get support for innovation (you will be given the opportunity to think outside of the box! 10x and not “only” 10% incremental value!)
• Find opportunities where data science will make an impact
• Help to translate business requirements into machine learning projects
• Measure the impact of your models on company goals
• Collaborate with internal and external stakeholders. You will find a group of friendly people who want to collaborate with you to improve our platform capabilities and the user experience, and ultimately have fun together!
• You will work in multi-functional teams, in a diverse, multinational environment, filled with people from Portugal, Spain, Germany, Bulgaria, Romania, Poland, Ukraine, Kazakhstan, and Uzbekistan.
• Most importantly, you will have fun working with us : )

Who we are looking for :

Nice to have :

What we offer :