Scalarr is an international mobile antifraud company founded in 2016. With our Machine Learning based anti-fraud solution we help mobile developers make data-driven decisions for ensuring the success of their user acquisition strategies and sustainable company’ growth.
26 ноября 2021

Data Scientist (Security)

Киев, Харьков, удаленно

Data Scienсе team is responsible for building and evaluating mechanisms to rank and price billions of ad impressions per day. To define measures of auction efficiency and produce insights into the quality of inputs to our auction (supply, demand, ML model predictions). This role will also be responsible for exploratory data analysis to identify opportunities for improvement of the system and working closely with Economists, Applied Scientists, and Engineers to improve our product.


  • Explore and implement challenging state-of-the-art algorithms;
  • Train ML models for different tasks;
  • Ensure Analytics model quality assurance and validate them;
  • Implement swiftly demo quality prototypes;
  • Convert proven useful prototypes into well-documented production-ready code;
  • Optimize python code base for production models.


  • At least 5+ years of experience researching and developing Machine Learning algorithms;
  • Practical experience in developing Detection of Anomalies and Threats, Unsupervised, Semi-Supervised learning and Data Clustering;
  • Practical experience in developing Tabular Data & Time Series;
  • Deep knowledge of statistics and linear algebra;
  • Engineering background and great experience in Python;
  • Ability to quickly prototype and implement new ideas, finding simple and accurate problem solutions.

Would be a big plus:

  • Practical experience in developing Reinforcement Learning solutions for security problems;
  • Rust, C++;
  • Experience in developing solutions IoT & Edge and network security.

Project description:

Scalarr is one of the fastest-growing startups in Ukraine being listed as Top 30 Startups by Forbes in 2021. Our core product within our portfolio is — an RL-powered active security solution to protect edge computing and IoT. It’s primary goal is to help shoppers discover new products they love, be the most efficient way for advertisers to meet their business objectives, and build a sustainable business that continuously innovates on behalf of customers. Our products and solutions are strategically important to enable edge computing across the globe. We’ve been a dedicated partner and solution provider to Hivecell, Vantiq, Playstudios, Yandex, Joom.