Experience

OPTIMAL SYSTEMS Group

• Germany
• IT Services and IT Consulting
• 100 - 200 Employee

• Machine Learning Engineer

  • Jan 2020 - Present

  - Building from scratch a brand new Machine Learning engine as an additional feature of the existing ECM, with a vision to become a complete automatic ML product in the future - Dealing with problems of document classification and smart document tagging (named-entity recognition and extraction) using Natural Language Processing and Document Layout Analysis - Application of NLP techniques for data preprocessing: text cleaning, stemming, lemmatization, tokenization, a bag of words, n-grams, word-embeddings - Supervised, statistical-based approach (TF-IDF) with Keras deep neural network - Development tools: Python (PyTorch, TensorFlow, scikit-learn, pandas, NumPy, Matplotlib, NLTK), - ML pipeline orchestrators: MLFlow, AirFlow, KubeFlow - Other tools and technologies used: Docker, DVC (Data Version Control), Amazon S3 Storage, Talend Studio, PostgreSQL Show less



AIK Banka

• Serbia
• Banking
• 400 - 500 Employee

• Business Intelligence Analyst

  • Jul 2017 - Jan 2020

  - Engaged in procurement and implementation of credit card churn prevention predictive model, a propensity to buy algorithm for credit card users, and RFM segmentation for all bank users based on multiple criteria - Feeding with new data, training and maintenance of ML models (XGBoost algorithm and Ensemble Voting Classifier) and its constant improvement by integrating domain knowledge - Evaluation of the model, metrics tracking, performance monitoring and hyper-parameters tuning to achieve better results. Feature importance analysis for detecting the best predictors - Intensive cooperation with the biggest loyalty programs in Serbia: Super Kartica and NIS Gazprom - analyzing a large amount of data to understand customers behavior and needs and to predict the value of the customer life cycle and xSell rate - Data extract, cleaning, processing, transformation, and visualization in the form of regular or ad hoc reports for the mid and top-level management of the bank as well as for Sberbank Europe Group - Tools and technologies used: OBIEE, R Studio, Tableau, Excel Show less



Mozzart

• Serbia
• Gambling Facilities and Casinos
• 500 - 600 Employee

• Software Engineer Internship

  • Jul 2016 - Aug 2016

  - Basics of NoSQL (MongoDB) and Web App Development (Java) - NBA stats web scrapping and storing in the app for further analysis - Basics of NoSQL (MongoDB) and Web App Development (Java) - NBA stats web scrapping and storing in the app for further analysis



Savez studenata Fakulteta organizacionih nauka

• Serbia
• Non-profit Organizations
• 1 - 100 Employee

• President

  • Jun 2015 - Jun 2016

  Defining and planning activities, tasks delegation, budgeting, managing educational projects in cooperation with project teams, members motivation and support, results analysis and constant improvement of organizational processes, communication and coordination with the Faculty administration and other student organizations, etc. Educational projects realization (Career Days, Conference of students of Organizational Sciences, Conference „Sportbizz") Defining and planning activities, tasks delegation, budgeting, managing educational projects in cooperation with project teams, members motivation and support, results analysis and constant improvement of organizational processes, communication and coordination with the Faculty administration and other student organizations, etc. Educational projects realization (Career Days, Conference of students of Organizational Sciences, Conference „Sportbizz")



Government Directorate for Common Affairs of the Republic Authorities

• Belgrade

• Software Engineer Internship

  • Jun 2015 - Jul 2015

  - Database Modeling (SQL, T – SQL) and Desktop App Development (C#) - Work on an app for managing all state officials public cars in Serbia - Database Modeling (SQL, T – SQL) and Desktop App Development (C#) - Work on an app for managing all state officials public cars in Serbia



ESTIEM LG Belgrade

• Serbia
• Non-profit Organizations
• 1 - 100 Employee

• Member

  • Oct 2013 - Jun 2015

  Projects (Academy of Modern Management , ESTIEM Sport Days , Exchange with LG Istanbul and LG Moscow) Projects (Academy of Modern Management , ESTIEM Sport Days , Exchange with LG Istanbul and LG Moscow)