Data Science Manager

March 6

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OLX

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OLX is a marketplace platform that offers safe and easy-to-use trading services for consumers globally. With a focus on sustainability and community, OLX empowers individuals to connect and trade efficiently, making a positive difference in the world. Through various brands and a commitment to understanding customer needs, OLX fosters an innovative work environment that encourages teamwork and growth.

Online Classifieds • digital • technology • marketplace • Trade

1001 - 5000 employees

🛍️ eCommerce

🏪 Marketplace

👥 B2C

📋 Description

• JOIN THE OLX RANKING DATA SCIENCE TEAM • The Ranking Data Science team at OLX Group is responsible for building and scaling ranking algorithms across OLX Europe. • Our main goal is to help our stakeholders to 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.

🎯 Requirements

• You should be located in Portugal, Spain, Poland, or Germany • 4+ years of experience in managing Data Science teams • You should have proven experience in Ranking and LTR algorithms • Proficient in English with excellent written and oral communication skills! • Strong presentation skills • Able to work in diverse, multi-functional teams with people from different backgrounds • Solid background in statistics and modeling • Good knowledge of Python, which means having experience with at least one of the following: Scikit-Learn, TensorFlow, PyTorch, Pandas • At least 5 years of (hands-on) experience with Machine Learning (supervised, unsupervised, etc.) • Very good knowledge of NLP and Deep Learning (Embeddings, Language Models, Transformers, etc.) • Good knowledge of Generative AI and Large Language Models (LLMs) • Good understanding of engineering best practices, that is: testing, CI/CD, monitoring, alerting, containers • Hands-on experience with SQL • Experience with MLOps

🏖️ Benefits

• Permanent contract (we don't offer B2B!) • Salary + annual bonus up to 20% of your annual gross salary + tax deductible costs up to 60% • Work with and impact all OLX websites • Train and conference budget and free access to Udemy courses • MacBook Pro or Windows Dell along with necessary accessories to make your work comfortable • 100% remote work (and the possibility to work from our office in Poznan or Warsaw)