Own AI-assisted demonstration project using fictional data, not a previous client assignment. A Node.js REST API with SQLite demonstrates CRUD operations, request validation and structured error responses. The screenshot comes from the actual local demo. Demonstrated skills: Node.js, JavaScript, REST API design, SQLite and functional checks. This demo does not claim production authentication, hosting or a live client deployment.

Own AI-assisted demonstration project with fictional records, not a previous client assignment. A Python script validates CSV input, detects duplicate entries, separates accepted and rejected records and creates a quality report. In the checked local run, 12 input rows produced 8 accepted records, 1 duplicate and 3 invalid rows. The screenshot shows the actual generated report. Demonstrated skills: Python, CSV processing, data validation, automation and clear error reporting. No external API connection or production customer data is used in this demo.

Own AI-assisted demonstration project with fictional data, not a previous client assignment. A local browser simulation demonstrates Telegram-style command handling in Node.js and language switching between German and English. The screenshot comes from the actual local demo. Checked locally: command responses and language changes. The optional Telegram adapter was not tested with a real bot token; this is not a live Telegram deployment. Demonstrated skills: Node.js, JavaScript, command routing, multilingual responses and separate bot logic.