Data Scientist – Warszawa

Date 24/05/24
Location Warszawa

For our client, a prominent leader in the technology and electronics industry, we are seeking a Data Scientist.

This role involves joining a project that focuses on developing an advanced advertising ecosystem, integrating smart devices across TV, mobile, and desktop platforms. The aim is to connect brands with TV audiences by building a state-of-the-art advertising platform using machine learning algorithms to enhance targeting, personalization, and optimization. The primary objective is to deliver the right message to the right audience at the right time, leading to higher engagement and conversion rates.

Your role:

  • In this position, you will gain a deep understanding of the company’s products and services, identifying ideal customer personas based on demographics, psychographics, and purchasing power. You will utilize machine learning algorithms to segment audiences and expand reach through lookalike modeling and other advanced techniques. By identifying people with similar characteristics to current customers, you will increase the likelihood of engagement with the brand.
  • Responsibilities:
    Provide data-driven insights and deliver production-grade solutions to maximize data value
  • Research and stay updated with the latest machine learning technologies and industry trends
  • Ensure data accuracy, consistency, and usability by cleaning and transforming data as necessary
  • Design and implement next-generation machine learning models with advanced technologies
  • Create quick prototypes and proof-of-concepts for new features and products
  • Test and refine audience targeting strategies based on performance metrics, experimenting with different messaging, ad formats, and targeting options
  • Collaborate with ML Engineers and MLOps Teams to deploy and streamline machine learning products and end-to-end pipelines on the advertising platform to drive business growth
  • Monitor and refine models regularly as new data sources become available, adapting to changing market conditions and consumer behavior
  • Communicate with stakeholders to understand business requirements, manage expectations, and create effective roadmaps
  • Technical leadership opportunities available based on skills and experience


  • Tech stack: Python, Scikit-Learn, TensorFlow, PyTorch, AWS, Spark, Snowflake, Github Actions
  • Must have:
    Degree in science or engineering fields
  • Minimum 6 years of proven industry experience
  • Strong problem-solving skills and creative thinking to address various challenges
  • Teamwork spirit and ability to collaborate effectively
  • Theoretical and practical experience in data analytics, data mining, machine learning, and statistics
  • Proficiency with ML libraries (e.g., Scikit-Learn, TensorFlow, PyTorch, Spark ML) and big data tools (e.g., Spark, Snowflake)
  • Programming skills in Python or OOP languages
  • Knowledge of SQL and databases
  • Experience with version control tools (e.g., git)


  • Friendly atmosphere focused on teamwork
  • Comprehensive training and support in developing algorithmic skills
  • Opportunity to work on multiple projects with the latest technologies
  • Monthly integration budget
  • Opportunities to attend local and international conferences
  • Flexible working hours
  • Private medical care (including family members)
  • Multisport card
  • Life insurance
  • Lunch card
  • Various discounts (products, theaters, restaurants)
  • Unlimited free access to Copernicus Science Center for you and friends
  • Opportunity to test new products
  • Hybrid work model: 3 days from the office per week (Warsaw)
  • Attractive relocation package
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