Background:

Graduate engineer
Lead eBusiness architect and team lead in a German DAX 30 company

Experience:

Software developer and IT architect since 1992
IT solution design and realization for high-volume international IT projects (Healthcare IT, eBusiness)

Programming language and system experience:

JavaScript, HTML, CSS
VUE2/3
React
nods.js
MongoDB
Python

Not web technology, but even important in today's business world ;-) :
Java
Salesforce platforms
SAP platforms