The Gr8 Chase
Alex Ovechkin is just 20 goals from Gretzky’s record. Based on his scoring trends, he's projected to tie it on April 13. Will he make history before the playoffs? Let’s dive in!
Jaroslav Bezděk
Machine Learning Engineer. Pythonista. Aspiring Hockey Data Analyst.
About me
In 2018, I earned my master's degree in Statistics. Since then, I've been working in the ML & AI field for both agencies and product companies. My go-to tools are Python, SQL, and AWS.
I'm passionate about hockey analytics. My dream is to work as a data analyst for an NHL team and win the Stanley Cup. I'm actively looking for opportunities in this field.
I strive to give back to the tech community that has given me so much. That's why I regularly speak at conferences and contribute to Stack Overflow.
Work experience
AI Engineer
ScaleVoice, Remote
07/2024 - 02/2025 (8 months)
Contributed to the development of a multi-agent system for the automotive industry, focusing on chat, messaging, and planning agents.
Python, SQL, Azure, OpenAI, FastAPI.
Machine Learning Engineer
STRV, Brno, Czech Republic
02/2022 - 06/2024 (2 years 5 months)
Worked on 4 machine learning projects for U.S. based clients, including sleep stage classification, emotion detection, content moderation, and text classification.
Led a team of 3 engineers on 1 project.
Python, SQL, AWS, dbt, OpenAI.
Data Scientist
Aures Holdings, Remote
10/2019 - 01/2022 (2 years 4 months)
Led 5 machine learning projects to help internal teams to estimate car prices and predict purchase probability.
Developed 5 internal Python libraries to streamline workflows and enhance efficiency.
Python, SQL, Jupyter Notebook, Azure, Docker, PowerBI.
Junior Data Scientist
Gauss Algorithmic, Brno, Czech Republic
07/2018 - 09/2019 (1 year 3 months)
Made over 30 data analyses, and created 2 machine learning models.
Developed 1 web application.
Python, SQL, Jupyter Notebook, R Shiny.
Education and Certifications
Hockey Analytics Certificate
Sports Management Worldwide
Issued in January 2025
AWS Certified Cloud Practitioner
Amazon Web Services
Issued in January 2023, expires in January 2026
Master's Degree in Statistics
Prague University of Economics and Business
2016 - 2018
Bachelor's Degree in Statistics and Econometrics
Prague University of Economics and Business
2013 - 2016
Skills
Python
Proficient in writing efficient, scalable, and maintainable code for data analysis, machine learning, and automation.
SQL
Skilled in writing queries for data extraction, transformation, and analysis across various database systems.
Cloud Services
Experienced in deploying and managing applications on AWS and Azure, with a focus on scalability and cost optimization.
Machine Learning
Hands-on experience in building and deploying machine learning models for classification, regression, and NLP tasks.
Statistics
Strong foundation in probability, hypothesis testing, and statistical modeling for data-driven decision-making.
DevOps
Familiar with CI/CD pipelines (GitHub Actions), containerization (Docker), and infrastructure as code (AWS CDK).
Attention to Detail
Committed to writing clean, well-documented code and ensuring accuracy in data analysis and models development.
Communication
Able to effectively explain complex technical concepts to both technical and non-technical audiences.
Public Speaking
Experienced in presenting at conferences around the world, delivering technical talks, and engaging with the tech community.
Projects
Explore my spare-time projects.
Frozen Facts Center
Hockey analytics website
Infrastructure
Fully hosted on AWS, utilizing AWS CDK for infrastructure as code.
Backend
A daily job fetches event data—shots, goals, penalties, takeaways, etc.—and stores it in S3. Once complete, another job runs dbt to process the event data and prepare aggregated statistics for the frontend.
Frontend
Built with Streamlit, providing standings, scores, fixtures, and player statistics.
Travel Blog
About
I love to travel and I tend to forget details over time. To preserve my memories, I write about places, people, and experiences that I want to remember.
Language
The blog is written in Czech.
Testimonials
Discover what clients and colleagues have to say about their experiences working with me.
"I worked with Jaroslav on customer data analytics project for our e-commerce customer. I really have to highlight Jaroslav's quick orientation in customer's problems and data, plus his understanding of goals we wanted to achieve. He prepared perfect market basket analysis and was able to clearly and convincingly define, communicate and document the outputs."
Vít Richtr
Lead Business Analyst at Simplity
"I have worked with Jaroslav on time series forecasting. I would like to highlight Jaroslav’s high level of professionalism and his exquisite python programming skills. One can truly read his code like a novel. His ability to quickly prototype solutions to scalably process large datasets is impressive. His programming was always with an end goal in sight, to produce an automated solution for a given analytic task."
Luka Grubišić
Data Sience Team Lead at tvbeat
"I had an opportunity to work with Jaroslav for a couple of years in ML team in an automotive industry and it has been a pleasure! He always understands the problem and gets to the issue at hand. He can document the whole project with ease and integrity. He can deliver on time and present the result in a perfect way. His personality is just as great as his work drive, I will definitely miss seeing him around."
Jakub Řehák
Data Science Team Lead at Aures Holdings
Explore my articles about hockey analytics
View all posts »I'm not a hockey data analyst—yet. But I'm determined to become one. I started this blog to document my journey, sharing my own data analyses, recreating notable studies using current datasets, and reflecting on my experiences and lessons learned along the way. I hope I can make it!
Contact
Let's connect!