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Oleksii Tyshchenko

Oleksii Tyshchenko

Certified

Senior Data Scientist

Grant Thornton Czech Republic s.r.o. | Ostrava, Czech Republic

Technologies

My Portfolio Highlights

My New Course

Big Data Fundamentals with PySpark

My New Track

Data Scientist

My New Course

MLOps for Business

Turning complex data into actionable insights.

My Work

Take a look at my latest work.

DataLab

Project: Developing Multi-Input Models For OCR

DataLab

Project: Predicting Temperature in London

DataLab

Project: Building a Demand Forecasting Model

DataLab

Project: Evaluate a Manufacturing Process

DataLab

Course: Building AI Agents with CrewAI

DataLab

Project: Finding Exchange Rates for International Sales

DataLab

Project: Classifying Emails using Llama

DataLab

Course: Building AI Agents with Haystack

DataLab

Course: Multi-Agent Systems with LangGraph

DataLab

Project: Debugging a Sales Data Workflow

DataLab

Course: Building AI Agents with Google ADK

DataLab

Course: End-to-End RAG with Weaviate

DataLab

Project: Building RAG Chatbots for Technical Documentation

DataLab

Project: Building a Retail Inventory Management System

DataLab

Project: Combating Subscriber Churn with Targeted Marketing

DataLab

Course: Building Agentic Workflows with LlamaIndex

DataLab

Course: Text-to-Query Agents with MongoDB and LangGraph

DataLab

Project: Topic Analysis of Clothing Reviews with Embeddings

DataLab

Project: Cleaning an Orders Dataset with PySpark

My Certifications

These are the industry credentials that I’ve earned.

AI Fundamentals

AI Fundamentals

Data Literacy

Data Literacy

Other Certificates

365 Data Science Python for Finance

365 Data Science Dates and Times in Python

365 Data Science Machine Learning in Python

365 Data Science Blockchain for Business

LinkedIn Learning LLM Foundations: Vector Databases For Caching and Retrieval Augmented Generation (RAG)

Analytics Vidhya Getting Started with OpenAI o3-mini

Analytics Vidhya xAI Grok 3: Smartest AI on Earth

Analytics Vidhya Getting started with DeepSeek

Analytics Vidhya Deep Dive Into QwQ- 32B

Prometheus Business Analyst

Analytics Vidhya Foundations of Model Context Protocol

Analytics Vidhya GenAI Landscape

Analytics Vidhya Revolutionizing Query Resolution with a RAG System and AI Agents

Analytics Vidhya Building Intelligent Chatbots using AI

Analytics Vidhya Demystifying OpenAI Agents SDK

Analytics Vidhya Building Data Analyst AI Agent

Analytics Vidhya Knowledge Bases & Memory for Agentic AI

Analytics Vidhya Building Agentic AI system with Bedrock

Analytics Vidhya Coding a ChatGPT-style Language Model from Scratch in PyTorch

Analytics Vidhya Building a Customized Newsletter AI Agent

Analytics Vidhya Build a Resume Review Agentic System with CrewAI

Analytics Vidhya Reimagining GenAI: Common Mistakes and Best Practices for Success

Analytics Vidhya End-to-end RAG Application Development with LangChain and Streamlit

Analytics Vidhya Building a Collaborative Multi-Agent System with LangGraph

Analytics Vidhya n8n: A Complete Guide to the Automation Tool

Analytics Vidhya Vibe Coding with Replit

Analytics Vidhya Guide to Vibe Coding in Windsurf.

Analytics Vidhya Model Deployment using FastAPI

Analytics Vidhya Nano Course: Building Large Language Models for Code

Analytics Vidhya Introduction to CrewAI: Building a Researcher Assistant Agent

Analytics Vidhya Building Database Agent

Analytics Vidhya How to Build an Image Generator Web App with Zero Coding

365 Data Science Senior Data Scientist [a career track]

365 Data Science Machine Learning Scientist [a career track]

365 Data Science Senior Data Analyst [a career track]

365 Data Science Data Analyst [a career track]

365 Data Science Data Engineer [a career track]

365 Data Science Data Scientist [a career track]

365 Data Science AI Engineer [a career track]

365 Data Science The Complete Data Visualization Course with Python, R, Tableau, and Excel

365 Data Science Machine Learning in Excel

365 Data Science Negotiation

365 Data Science Agile and Scrum Project Management

365 Data Science Excel for Project Management

LinkedIn Learning Trello for Agile Teams

LinkedIn Learning Agile Software Development: Transforming Your Organization

LinkedIn Learning Agile Project Leadership

LinkedIn Learning Software Project Management Foundations

LinkedIn Learning Transitioning from Waterfall to Agile Project Management

LinkedIn Learning Scrum: Advanced

LinkedIn Learning A Tour of the SAP Cloud Platform

LinkedIn Learning Agile Product Owner Role: Techniques

LinkedIn Learning Enterprise Agile: Growing Scrum

LinkedIn Learning Enterprise Agile: Changing Your Culture

LinkedIn Learning Business Analytics Foundations: Competencies

IBM Deep Learning

LinkedIn Learning (PMI) Decision Intelligence

LinkedIn Learning Applied Machine Learning: Ensemble Learning

365 Data Science A/B Testing in Python

365 Data Science AI Applications for Business Success

365 Data Science Data-Driven Business Growth

LinkedIn Learning Introduction to Attention-Based Neural Networks

LinkedIn Learning SAP S/4HANA Essential Training

365 Data Science Introduction to LLMs

365 Data Science Intro to NLP for AI

365 Data Science Probability

365 Data Science Time Series Analysis with Python

365 Data Science Machine Learning with K-Nearest Neighbors

365 Data Science The Machine Learning Algorithms A-Z

365 Data Science Mastering Key Performance Indicators (KPIs)

365 Data Science Statistical Tests in Sales and Marketing

365 Data Science Intro to Data Engineering

365 Data Science Data Analysis with ChatGPT

365 Data Science Intro to ChatGPT and Generative AI

LinkedIn Learning Advanced Power BI: DAX Language, Formulas, and Calculations

LinkedIn Learning SAP ERP Essential Training

365 Data Science Product Management for AI & Data Science

365 Data Science Machine Learning with Ridge and Lasso Regression

365 Data Science Machine Learning Deep Dive Business Applications and Coding Walkthroughs

365 Data Science Machine Learning with Decision Trees and Random Forests

365 Data Science Deep Learning with TensorFlow 2

365 Data Science Introduction to Tableau

365 Data Science Convolutional Neural Networks with TensorFlow in Python

Prometheus Data analysis and statistical inference in R

Kaggle Python

Kaggle Data Cleaning

365 Data Science Power BI

Kaggle Pandas

Kaggle Intermediate Machine Learning

LinkedIn Learning Learning SAP Production Planning

365 Data Science Introduction to DAX

365 Data Science Machine Learning with Naïve Bayes

365 Data Science Machine Learning with Support Vector Machines

365 Data Science Mathematics

365 Data Science Power Query and Data Modeling

365 Data Science Python for Social Media Analytics

365 Data Science SQL for Data Science Interviews

LinkedIn Learning SAP S/4HANA: Beyond the Basics

LinkedIn Learning Agile for Distributed Teams

LinkedIn Learning Excel: Managing and Analyzing Data

LinkedIn Learning Advanced Agile: The Team's Mindset

365 Data Science Advanced Microsoft Excel

365 Data Science Advanced SQL

365 Data Science Advanced SQL for Data Engineering

LinkedIn Learning Agile Foundations

LinkedIn Learning Agile Product Owner Role: Foundations

LinkedIn Learning Fail Better: Using Mistakes to Improve Performance

LinkedIn Learning Product Management Tips

LinkedIn Learning Scrum: The Basics

365 Data Science Building Business Reports Using Power BI

365 Data Science ChatGPT for Data Science

365 Data Science Data Analysis in Power BI with ChatGPT

365 Data Science Data Analysis with Excel Pivot Tables

365 Data Science Data Cleaning and Preprocessing with pandas

365 Data Science Git and GitHub

365 Data Science Intermediate Python Programming

LinkedIn Learning Introduction to SAP BI/BW

LinkedIn Learning Learning SAP SD (Sales and Distribution)

365 Data Science Marketing Strategy

365 Data Science Project Management

365 Data Science Persuasion and Influence

LinkedIn Learning GPT-4 Turbo: The New GPT Model and What You Need to Know

LinkedIn Learning MLOps Essentials: Monitoring Model Drift and Bias

LinkedIn Learning Azure OpenAI: Generative AI Models and How to Use Them

LinkedIn Learning Looker Studio for Beginners

365 Data Science Introduction to Vector Databases with Pinecone

365 Data Science Build Chat Applications with OpenAI and LangChain

365 Data Science Corporate Strategy

365 Data Science Introduction to Data and Data Science

LinkedIn Learning Learning SAP MM (Materials Management)

365 Data Science Working with Text Files in Python

365 Data Science Introduction to Business Analytics

365 Data Science Data Preprocessing with NumPy

365 Data Science Management

365 Data Science AI Strategy

365 Data Science Power BI Developer [a career track]

365 Data Science Copilot in Excel

365 Data Science Advanced Time Series Analysis with Python

365 Data Science Tableau Developer [a career track]

365 Data Science AI Agent Architecture

365 Data Science AI Agents in Practice

365 Data Science Introduction to Amazon Bedrock

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

Grant Thornton Czech Republic s.r.o. | Feb 2025 - Present

AI / Data Science Consultant [Audit & Tax Consulting]

N/A

Outlier | Dec 2024 - Present

Python Coder / AI Trainer - Tier 3

Training AI large language models, helping cutting-edge generative AI models write better code. Projects typically include discrete, highly variable problems that involve engaging with these models as they learn to code. Helping train generative artificial intelligence models. Crafting and answering questions related to computer science in order to help train AI models. Evaluating and ranking code generated by AI models. Evaluating the quality of AI-generated code, including human-readable summaries of your rationale Solve coding problems, writing functional and efficient code Optimize code to run at maximum efficiency Writing robust test cases to confirm code works efficiently and effectively Writing human-readable summaries of coding problems Writing explanations of how code can solve problems and evaluate various solution approaches
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University of Ostrava, Institute for Research and Applications of Fuzzy Modeling | Feb 2018 - Jun 2023

Researcher IV (Leading Researcher)

Manage projects and collaborate within an international team. Data collection and interpretation, cleaning, transformation, analysis, hypothesis testing, experimental design, and troubleshooting. Experiences with statistical analysis of data of different natures. Publish articles and regularly participate in conferences. Take part in international research programs and projects.

Kharkiv National University of Radio Electronics | Feb 2014 - Aug 2018

Senior Researcher

Data collection and interpretation, experimental design, and troubleshooting. Experiences with statistical analysis of data of different natures. Publish articles and regularly participate in conferences. Lead a small research group of Ph.D. students in commercial projects. Take part in international research programs and projects.

Kharkiv National University of Radio Electronics, Control Systems Research Laboratory | Nov 2013 - Jan 2014

Researcher

N/A

Kharkiv National University of Radio Electronics, Control Systems Research Laboratory | Nov 2012 - Oct 2013

Junior Researcher

N/A

My Education

Take a look at my formal education

Doctor of Philosophy (Ph.D.) in Computer ScienceKharkiv National University of Radio Electronics | 2013
Master of Science (MSc) in Computer ScienceKharkiv National University of Radio Electronics | 2008
Bachelor's degree (BSc) in Software DevelopmentKharkiv National University of Radio Electronics | 2007

About Me

Oleksii Tyshchenko

I am a Researcher (Ph.D. in Computer Science) in Data Science and Analytics with 15+ years of experience in Artificial Intelligence and Computer Science. Passionate about learning new tools and algorithms. An easy learner.

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