Essen, North Rhine-Westphalia, Germany
Worked as a full-stack developer on Calvergy, a commercial energy optimization platform used by industrial clients across Germany. Built and delivered two complete AI-powered features from scratch: ▸ AI Energy Load Profile Generator Designed and implemented an end-to-end feature that allows users to generate 8,760-row hourly energy profiles using OpenAI GPT-4o. Built a multi-step React dialog UI, a Django REST API backend, and a deterministic Python scaling algorithm that guarantees monthly energy totals match customer input within 0.1% tolerance. Output is a structured Excel file used directly by the optimization engine. ▸ AI Energy Bill Extraction Built a PDF bill scanner that extracts annual energy consumption and cost data from utility bills in any language and from any provider worldwide. Used pdfplumber for text extraction and GPT-4o for intelligent data recognition. Extracted values auto-fill the relevant cost input fields in the software.