Remote | (Senior) Data Scientist

Company:
Location: Lisboa

*** Mention DataYoshi when applying ***

At OLX Group, we shape the future of trade to unlock the hidden value in everything.

We shape the future of trade as one of the world's fastest-growing networks of trading platforms, operating in 30+ countries under 20+ well-loved brands including Avito, OLX, Otomoto, letgo, Property24, and many more.

We love to unlock value for our customers. Every single month, 300 million people use our platforms to easily, safely, and conveniently find their perfect home, buy or sell a car, find a great job, sell things they no longer need, or strike a great deal on something they need. And we help thousands of entrepreneurs and businesses find their customers too.

We also unlock value within our company. We invest in ourselves and each other to reach our full potential. We avoid bureaucracy and empower our teams to innovate. Our commitment to inclusion ensures we listen to a diverse range of voices when making decisions. And, we combine the spirit and agility of a startup with our global scale and the backing of Prosus, one of the largest consumer internet groups in the world.

Last but not least, we unlock value for our stakeholders. We are proud of the positive contribution we make to our planet, by enabling more conscious consumption and helping the world make the most of its limited resources through more efficient trade.

The team:
The Data Science team at OLX Group is responsible for building algorithmic solutions to facilitate transactions between buyers and sellers. We are developing personalization technologies, customer safety and security solutions as well as optimization strategies that have a direct impact on OLX's users as well as the company's bottom line.

You will be encouraged to apply state-of-the-art machine learning, in the areas of user segmentation, image metadata extraction (including multi-label classification and tagging with deep learning), recommender systems, algorithmic pricing, taxonomy construction and more. Applying these methods is expected to assist our team in making OLX customers successful. You will have an impact on nearly 200 million visitors per month by rolling your solutions to production, analyzing results offline and online, and measuring the impact.

We invite you to join a team which works across the entire EU region with the different OLX Group platforms. A team that breaks through walls and builds cross-functional connections with everyone around. A team where a common mission and goals matter more than reporting lines. We build on each other, asking for help and support when needed, and we proactively support others.

What you will be doing:
Work on optimizing the models according to the requirements of the specific use case.
Bring machine learning models and algorithms to production together with engineers.
Innovate and test new algorithms continuously and rapidly with live traffic
Design, execute and analyze experiments to prove that desired outcomes are being achieved, to validate hypotheses and to measure the impact against company objectives.
Master the online experimentation topic and educate others on it (for example A/B experimentation, etc…)
Take ownership of what you build end-to-end in a cross-functional team of software engineers, data scientists and designers, that together design and run these experiments.
Find opportunities where data science will make an impact and drive corresponding projects globally and collaborate with the teams across our world-wide locations (in-office and remote) to overcome technical challenges.

Who we're looking for:
At least 3 years of professional data science experience
A strong software development background: good experience with Python and SQL, good understanding of best engineering practices to be able to write code that's ready for production
Experience with at least one of the following machine learning frameworks: Scikit-Learn, TensorFlow, PyTorch, (or similar)
Experience in designing and analyzing online experiments (e.g. A/B tests)
Proficient in English with excellent written and oral communication skills, including technical audiences and top management
You can be based in Portugal / Poland / Germany

Nice to have:
Industry experience creating and productionizing machine learning algorithms at scale
Experience using AWS for deploying machine learning solutions
Experience with building batch and real-time data pipelines using tools like Spark and Airflow
Exposure to other programming languages such as Kotlin, Java, Scala, etc
Experience to production infrastructure and DevOps practices: monitoring, alerting, CI/CD, container-orchestrating platforms, and infrastructure-as-code tools (Grafana, Prometheus, Kubernetes, Terraform)

What we'll give you:
Competitive compensation and benefits
Contributing to the global OLX Group
A passionate and diverse team of data scientists spanning several tech hubs across the globe
The opportunity to learn from each other and become better every day
Competitive salary and good benefits
Company Mobile phone, laptop of your choice: Laptop MacBook Pro, Windows or Linux, Notebook, PC, any tool you might need
Open selection of e-courses including Udemy, Coursera and specialist AWS training

We are turning Diversity & Inclusion into our superpower and competitive advantage. We encourage people of all races, ethnicities, disabilities, ages, gender identity or expression, backgrounds and experiences to consider applying for this role.

*** Mention DataYoshi when applying ***

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