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Location:Warszawa, PL, 00-841 Company: Allegro sp. z o.o. Team: Technology Contract Type: Employee Our team drives th...

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Selected role

Data Scientist - Catalog Quality and Selection

Allegro Group Warszawa, MZ, PL

$300k Senior Full-time

Location:Warszawa, PL, 00-841

Company: Allegro sp. z o.o.

Team: Technology

Contract Type: Employee

Our team drives the logic that powers a trustworthy marketplace. Composed of Data Scientists, Data Engineers and Analysts we develop statistical models and rules to measure and improve Products Catalog and Product Selection. We oversee the quality and correctness of all product components: titles, descriptions, images, and parameters. Our scope also covers ensuring consistency with sellers offers, detecting product duplicates, building selection models and more. We work in close collaboration with developers and business teams, participating in the entire project lifecycle - from ideation through to implementation. Our ultimate goal is to create a seamless experience where Partners can rely on fair visibility rules and Customers can trust every product detail they see on the platform.

What will your job involve

Co-creating projects on each stage - from concept to productization - to deliver insights and models solving business problems from different areas
Using a wide range of model types, including boosting models, Bayesian methods, causal inference, optimization methods, deep learning and Generative AI solutions including LLMs and Agentic AI
Processing terabytes of data using Google Cloud Platform solutions
Working not only with tabular data, but also with spatial data, natural language texts, images and time series
Taking part in implementations of off-line and on-line models
Brainstorm, provide mentorship, share knowledge
Cooperation with other teams: business stake-holders, analytics, data engineers

Why should you work with us?

Data Science plays a key role in the operation of Allegro - we are a data-driven technology company, and through the models and analyses provided you will have a significant impact on one of the largest eCommerce platforms in the world
You will have a possibility of developing AI tools from prototypes to large production solutions that will have real impact on our users, partners and employees. Thanks to the wide range of projects we carry out, you will never run out of interesting challenges
Support of experienced Data Scientists - there is always someone to exchange ideas with, because we have the best specialists and experts in their field on board
You will have access to huge data sets and the latest data processing technologies
You will have the opportunity to learn the tools and technologies in practice:
Python (including various ML libraries), GCP environment (BigQuery, VertexAI, Cloud Composer, Dataflow), Airflow, PySpark, Gemini/GPT models
You will learn good programming, engineering and code management practices
We share our knowledge at industry conferences and trainings, we are an active participant and co-creator of the Data Science / Machine Learning community in Poland and in the world

Our offer is addressed to people who:

Have experience in data analysis using SQL and building machine learning solutions in production environments, especially with end-to-end experience in designing ML models
Want to translate business challenges into ML problems
Can clearly communicate with business units - from formulating an analytical problem to a clear and intuitive presentation of results
Program in Python and efficiently use basic development tools
Understand statistical and machine learning methods
Embrace modern tooling, specifically possessing practical and theoretical knowledge of Generative AI and Agentic AI principles (coding tools, prompting, validation). The ideal candidate enthusiastically leverages GenAI coding tools (like Copilot) to boost and automate workflows, remaining up-to-date and critically engaged with the newest GenAI tooling.
Graduated with a degree strongly related to statistical/mathematical modeling, such as Mathematics, Physics, Economics, Computer Science (or similar major) or job experience in data science / ML positions.

What's in it for you:

Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work.
Long term discretionary incentive plan based on Allegro.eu shares (restricted stock units).
Annual bonus based on your annual performance and company results.
Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms).
A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories.
A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers).
English classes that we pay for related to the specific nature of your job.
A training budget, inter-team tourism (see more here), hackathons, and an internal learning platform where you will find multiple trainings.
An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal.
Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy.

And that's just the beginning! You can read more about the benefits here.

#goodtobehere means that:

You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA.
You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create.
You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job.
You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support).
You will create solutions that will be used (and loved!) by your friends, family and millions of our customers.
You will meet the Allegro Scale, which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning.
You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about!

Send us your CV and… see you at Allegro!

Don’t wait until you join us! Let's meet online!

Get to know our team, take a peek at our office life and check out what else we do at Allegro.

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