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Vitalii Y.
Available: 28 Jun 2018
SENIOR /team lead
Senior Data Scientist with over 9 years of experience, and 2 years of experience as Technology Consultant and Software Optimization Specialist
Vitalii has hands-on experience in design and implementation of components for software projects. As a Software Developer, he has been working on long-term projects that provided innovative solutions for security, healthcare, enterprise systems, and telecommunication industries. Nowadays, he holds a position of Data Scientist. He effectively combines requirements management, software development, and optimization skills. He helps clients leverage their enterprise data by extracting useful information from piles of raw and unstructured data as well as applying the machine learning and data mining techniques for solving various business problems.
All rates are indicative
Usually responds within 1 hour
GMT+3
Lviv/Ukraine

EXPERIENCE

Industry Experience

Logistics & Transportation, E-Commerce & Retail, Human Resources & Career, Social Media & Communication

Product Experience

Database migration tool, Online advertisement application, Career path recommendation tool, Supply Chain Management application, Intelligent Image Search Engine, Log Processing, CRM

PORTFOLIO HIGHLIGHTS

Jan `16 – Present

2 years

Database administration

Big Data Engineer/ Data Scientist

Logistics services company

Scope of this project was to build the data lake using big data stack of technologies and migrate existing structured data from data warehouse (MS stack). We designed data ingestions layer that was divided into two main parts: initial data load and incremental data load.

Technologies Stack:

Flask Apache Hadoop Python R Spark Apache Solr Tesseract RabbitMQ MSSQL REST API

Industry:

Logistics & Transportation

Product:

Database migration tool

Jul `15 – Dec `15

5 months

Ad campaign optimization framework

Technical Product Manager

SF-based startup company

Within the scope of the project, it was necessary to define data sources for retrieving the date for an ongoing advertising campaign (YouTube, Google Analytics, and Survey Monkey) as well as implement integration with them using their APIs.

Technologies Stack:

Google Analytics Java PostgreSQL Python

Industry:

E-Commerce & Retail

Product:

Online advertisement application

Dec `14 – Jun `15

6 months

Career advisor

Big Data Architect (Data Scientist)

Ukrainian IT Company

Our team has developed a tool that allow its users to predict possible career development paths based on their previous experience, industries they worked in, skills, education, and more. But, more importantly, this model suggests which skills, education or career steps are required to be more successful and reach one’s career goal in minimum time.

Technologies Stack:

Apache Hadoop Python Tableau Apache Hive Apache Spark

Industry:

Human Resources & Career

Product:

Career path recommendation tool

Aug `14 – Nov `14

3 months

Big Data platform for supply chain management

Big Data Architect

Startup company

Initially, the customer used standard approaches for DW. It was a challenge to develop analytical platform that would support business-driven decision making. In particular, the enterprise-class BI solution was designed.

Technologies Stack:

Apache Hadoop Tableau Apache Hive Apache Spark

Industry:

E-Commerce & Retail

Product:

Supply Chain Management application

Jan `14 – Jul `14

6 months

A fast large-scale logo recognition system

Data Scientist

North American search solution provider

Leading design and engineering of a consumer-oriented image search system targeted to identify ads, movies, and logotypes via fast matching of a real-life photograph against a set of several million samples. The system was scaled up by implementing the parallel feature-based image search algorithm—OpenCV SURF—running on a grid of NVIDIA CUDA cards.

Technologies Stack:

CUDA Java OpenCV

Industry:

E-Commerce & Retail

Product:

Intelligent Image Search Engine

Sep `13 – Dec `13

3 months

Log collection and analysis system

Data Architect

A huge networking provider company

A first-class solution that collected system logs for hundreds of sources, including application servers, web servers, network devices, and much more, stored them in one place (Hadoop Distributed File System), and then loaded them into data warehouse for further analytics.

Technologies Stack:

Apache Hadoop Java Spark Apache Flume

Industry:

Social Media & Communication

Product:

Log Processing

Aug `13 – Sep `13

1 month

Customer's behaviour analysis

Data Scientist

Multinational telecommunications corporation

It aimed at creating a sophisticated solution that would predict the propensity of customers to switch provider (churn), buy new products or services (appetency), or buy upgrades or add-ons proposed to them to make the sale more profitable (up-selling). The rapid and robust detection of data made the customer’s solution competitive on the market.

Technologies Stack:

Python Spark Apache Mahout

Industry:

E-Commerce & Retail

Product:

CRM

EDUCATION

Lviv Polytechnic National University

Master’s degree – Computer Science, Department of Decision Making Intellectual Systems, 2008. Graduated cum laude.

Data Science agency #120

400+
Lviv/Ukraine
GMT+3

Industries

Business & Productivity, Logistics & Transportation, E-Commerce & Retail, Human Resources & Career, Advertising & Marketing, Statistics & Atalytics, Fashion & Style, Kids & Childcare, Healthcare & Medicine

Data Science, Machine Learning, Deep Learning, Predictive Analytics, Natural Language Processing, Computer Vision

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