# Sergkei Kournosenkov

> Web & Software Developer · Full-Stack · Frontend focus · Wuppertal, Germany. Experienced Full-Stack Software Engineer with a strong focus on frontend development and modern web applications. Proven track record of leading technical teams, building dynamic single-page applications (SPAs), and integrating AI-powered development tools. Passionate about clean code, performance optimization, and scalable architectures.

- Current role: Software Engineer – Full-Stack (Frontend Focus) at ECS GmbH (04/2019 – present)
- Working as a developer since November 2014
- Core stack: Angular, React, Flutter, Tailwind, Spring Boot, PostgreSQL, Mendix, Vitest, Claude Code
- Education: B.Sc. in Computer Engineering (Software Engineering), Technological Educational Institute of Epirus
- Spoken languages: Greek (Native), English (C1 · Fluent), German (B2 · Very good), Russian (Very good)

The website is an interactive CV in English (`/en/`), German (`/de/`) and Greek (`/el/`). For plain text, use the full CV below.

## CV

- [Full CV (Markdown)](https://www.kournosenkov.com/llms-full.txt): complete work experience, projects, skills, education and languages
- [Interactive CV](https://www.kournosenkov.com/en/): the website. Scrolling past the end turns the CV into a playable retro RPG
- [Portfolio](https://www.kournosenkov.com/en/portfolio.html): all projects with case studies
- [Printable CV](https://www.kournosenkov.com/cv.html): A4 version for print and PDF

## Contact

- [Email](mailto:ser.corum@gmail.com): ser.corum@gmail.com
- [GitHub](https://github.com/corum86)
- [LinkedIn](https://www.linkedin.com/in/sergkei-kournosenkov-10659592/)

## Optional

- [Lebenslauf (Deutsch)](https://www.kournosenkov.com/de/): the same CV in German
- [Βιογραφικό (Ελληνικά)](https://www.kournosenkov.com/el/): the same CV in Greek
- [Privacy policy](https://www.kournosenkov.com/datenschutz.html): German, English and Greek