Very good - Java (especially Android specific), Kotlin, SQL, Maria DB, PostgreSQL, JSF, native in English and Hebrew, fluent in German (fast akzentfrei).
Good - Javascript, HTML, CSS, React, Linux(debian/Ubuntu, centOS, alpine), Firebase, Docker, Wireshark, SIP, Swiss German (Bärndütsch).
Some knowledge - Spring Boot, Python, Bash, Ansible, Angular, MongoDB, React Native, Go, Lua.
Résumé/CV: https://chagai.website/cv/
Email: me@chagai.website