Ján Bujnovský

Frontend Developer

Building digital experiences with React & TypeScript

About Me

Happy husband, father, and friend based in Prešov, Slovakia. I believe in responsibility, good work, good relationships, service to others, and sustainability.

As a Frontend Software Developer at Hotovo, I work with React on a worldwide-used risk management product. My journey combines technical expertise with a unique background in biotechnology and regulatory affairs.

Beyond coding, I'm a professional chess player who enjoys reading, running, and exploring politics, marketing, and psychology. I've also crafted many batches of excellent homemade beer!

Quick Facts

  • 📍 Location: Prešov, Slovakia
  • 🎂 Born: 1992
  • 🇸🇰 Nationality: Slovak
  • ♟️ Professional Chess Player
  • 🍺 Homebrewing Enthusiast

Work Experience

05/2023 – Present

Frontend Software Developer

Hotovo | Prešov, Slovakia

  • Developing React Frontend for worldwide-used risk management product
  • Reskinned React Website and Java Swing desktop application
  • Built Electron desktop app for visually impaired users using JavaScript, React, Next.js, and Node.js
01/2023 – 05/2023

Senior Regulatory Specialist

Henkel | Bratislava, Slovakia

  • Represented raw materials process at expert meetings
  • Programmed VBA macros to automate tasks
  • Trained and mentored new colleagues
  • Reviewed work instructions and Signavio process models
07/2017 – 01/2023

Regulatory Specialist

Henkel | Bratislava, Slovakia

  • Created chemical identity for raw materials in SAP
  • Ensured compliance with regional regulations (TSCA, REACH)
  • Developed VBA macros for SAP automation
  • Collaborated with suppliers, PDs, and Eco-Toxicologists

Skills & Expertise

💻 Technical Skills

React TypeScript JavaScript HTML & CSS Next.js Node.js Electron VBA

🗣️ Languages

Slovak - Native
English - C1 (Proficient)
German - A2 (Basic)

🎓 Education

Master's Degree in Biotechnology

STUBA, Faculty of Chemical and Food Technology (2015-2017)

Thesis: Characterization of beers prepared from different hops

Bachelor's Degree in Food and Biotechnology

STUBA (2012-2015)

Get In Touch

Interested in collaboration or just want to say hello? Feel free to reach out!