My work
Data engineering, AI and web development. Here are my projects and services.
What I do professionally
Data & AI
Data & BI
Data is my day job. Mostly SQL, Databricks, PySpark and Power BI. I enjoy the part between "we have data somewhere" and "someone can actually make decisions with it".
AI
I work with AI professionally, in my own projects and academically. My thesis looked at how eight Czech companies adopt AI — and what usually goes wrong between the AI presentation and actual deployment. If you're facing something similar, I'm happy to take a look.
What I build on the side
Websites & tools
Websites & side projects
I built this site myself. Then I realised I enjoyed it and started building more. Mostly smaller sites and tools in Next.js — so far mainly my own projects and sites for people I know.
App Compare
Compare app ratings and reviews from the App Store and Google Play across markets. Up to five apps at once, trends over time and data export.
Try the tool →Been doing it long enough to teach it
Chess coaching
I've played chess competitively for over twenty years and hold the FIDE Master title. I coach individually and in groups, online and in person.
Want to train? Book a lesson.→Theses
Implementation of artificial intelligence in companies: Benefits, challenges and strategies
Master's thesis on AI maturity and adoption strategies in Czech companies. Qualitative research across eight comparative case studies, from technology startups to multinationals, focused on governance and the EU AI Act.
Optimization of digital communication of the Faculty of Informatics and Statistics
Bachelor's thesis on the faculty's social media communication. It combined a survey of 194 respondents, focus groups and benchmarking against other faculties, resulting in recommendations on content, format and targeting.
Projects and competitions
Online Meetings Optimization
A team project exploring how AI assistants can cut down the time spent in online meetings. Built with Kristián Melleš and Samuel Čandík, it reached the top ten in the Profinit AI Talents competition.

BIZ SIM CUP 2023, 6th place
National finals of a business simulation competition held at Škoda Auto headquarters. Competing for VŠE as team VALENTYNKY, we placed 6th in an international field. Ten rounds of ERPsim in SAP S/4HANA, running sales and logistics operations, setting pricing strategy and modelling market trends.
