Our Instructors

Our Instructors

Automation QA

Oleksandr Pelykh

Oleksandr has more than 5 years of experience in Quality Assurance. ISTQB certified. Worked in big

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companies and in little startups. He knows how to start automation from scratch. Uses Javascript and modern frameworks in writing automation tests. Visits conferences regularly to improve skills.
Favorite tools: Puppeteer, Postman.
Hobbies: work, reading, quests.

Prysiazhnyi Andrey

Andrey is one of our Automation QA course instructors at DEVrepublik. He has two degrees in computer

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science and finance. Received the ISTQB Foundation Level certificate.
For a long time, he worked at the bank and led the direction of international settlements, after which he moved to the field of software testing. In testing for more than 4 years. During this time, he took part in projects related to distance learning systems, automated banking software, CRM and BPM systems. He started, like most people, with manual testing, was the team leader. He wrote auto tests in PHP, Python, and now he is actively using Javascript. In addition to automating UI testing, he writes autotests for API and performance testing.
At the moment he works at Terrasoft as a backend direction automation company.
Hobbies: traveling, cars, board games.

Denys Pavliuk

Denys is an Automated QA engineer with 4-year experience.
He has tested various

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projects related to education, finance, accounting, data areas.
He also has skills to work with a few testing frameworks.
Best thing is to write tests that help to deliver a good product.
Technologies: Java, Selenium Web Driver.
Tools: IntelliJ IDEA, Selenium IDE, Selenide, Jmeter
Browsers: IE, EDGE, FireFox, Safari, Chrome.
OS and mobile platform: Windows, iOS, Android

Data science

Iryna Lazarenko

One of the Lead Instructors at DEVrepublik boot camp and PhD in Mathematics Iryna is a Senior Lecturer

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at the Department of Mathematical Modeling for Economic Systems at the National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute. She is also a Scientist at the Laboratory for computer modelling and intelligent data analysis at the World Data Center for geoinformatics and sustainable development
Her research interests are Data Analysis, Data Mining, Operation Research, Optimal Control, Sustainable Development, Theory of Integral and Differential Equations.
She loves travelling a lot.

Ivan Luchko

Ivan is one of the Lead Instructors at DEVrepublik. Won a Bronze Medal in International Physics Olympiad, Mexico.

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Received a Master degree in Applied Physics at Technical University of Munich. Later performed some research in the Heisenberg antiferromagnets using Qauntum Monte Carlo simulations and machine learning technics in Geneva (and PSI), Switzerland. Has a diverse experience in business process automation, advanced analytics, mathematical modeling, optimization and machine learning. During the last two years Ivan works as Data Science team lead at Boosta. Recent projects are related to dynamic price optimization and recommendation system in e-commerce.
Loves sport, traveling and hiking.

Ruslan Klymentiev

Ruslan is one of the instructors in DEVrepublik.

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He got a Bachelor’s Degree in Electronic Engineering at Odessa National Polytechnic University. Currently, he is getting a Master’s Degree in Neuroscience from Otto von Guericke University Magdeburg. More than 3 years of experience in Data Analysis & Data Science fields.
Areas of interests: data visualization, statistics, application of Data Science in the healthcare field.
Personal hobbies: climbing and hiking

Nikolay Meretskiy

Nikolay is one of the leading instructors at DEVrepublik. He has 4 years of experience in Data Science

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and machine learning using algorithms for predictive modeling, data processing, image and video processing, as well as data mining for solving complex business problems. Nikolay successfully applies machine learning methods in medicine, finance, agriculture, AR and many other areas. In addition, he worked with a large number of popular technologies, such as: Python, TensorFlow, Scikit, Keras, SciPy.
Hobbies: Hiking.

Oleksiy Poddiachiy

Alexey is one of the instructors of the Data Science course, responsible for the Deep Learning module. He has 4 years of

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professional experience and is one of the few Reinforcement learning researchers in Ukraine. He participated in the re-implementation of AlphaZero and in the study of the use of RL algorithms for tasks with a stochastic environment and long-term planning.
Now focused on Computer Vision and Voice Recognition.
Outside of work, the author of articles on ( and lecturer, presented at different companies such as Grammarly, ARVI and Lalafo.

Business Strategy

Christopher Dressler

Dressler Consulting, Founder and CEO DEVrepublik, CEO

Strategic Leader and Successful IT Executive with more than 25 years of experience in the IT sector. An IT strategist, visionary and decision maker, negotiator, problem solver and a management guru.
Business Strategy workshop instructor.