Thomas Weller

Founder & Managing Director (Insight AI Solutions GmbH)

Insight AI • Full-time

Jan 2026 - Present • 6 mos

Founder and Managing Director of Insight AI Solutions GmbH, a German AI consultancy delivering RAG knowledge-base assistants, AI agents and automation for B2B clients. CURRENT WORK: - RAG knowledge platform on Azure AI Foundry for a German enterprise software vendor — hybrid search, citation handling, FastAPI backend - Azure data pipeline for a South African energy-tech company — automated daily processing on Azure ML, RBAC-secured architecture - 1:1 AI executive coaching for the leadership of a German boutique asset manager FOCUS: - Production RAG systems: assistants that answer from company documents with verifiable sources - Cloud architecture on Azure and GCP, with security and maintainability as first-class concerns - Advising decision-makers on where AI creates real value — and where it does not STRUCTURE: - German GmbH with two-tier holding structure — invoicing, liability and contracts handled professionally - Continues the Fiverr practice operating since 2021 (150+ orders, 5-star average)

AI Developer

Fiverr • Part-time

Nov 2021 - Jan 2026 • 4 yrs 2 mos

AI Developer specializing in Knowledge Base Chatbots (RAG) and AI Automation for SMBs. TRACK RECORD: - 150+ completed Fiverr AI orders with 5-star average rating - Fiverr Pro Freelancer FLAGSHIP PROJECT: - Built and maintain an enterprise knowledge bot with 14,000+ documents serving 150-250 daily queries for 18+ months - Includes automated daily data pipelines, analytics reporting, and continuous improvement TECH STACK: - Platforms: Chatbase, Stack AI, Microsoft Azure AI Foundry, Relevance AI - Cloud: GCP (Vertex AI, BigQuery), Azure (AI Search, OpenAI Services) - Development: Python, LLM APIs (OpenAI, Claude, Gemini) SERVICES: → RAG Chatbots trained on company knowledge → AI Workflow Automation → Data Pipelines & Integrations → AI Training & Consulting

Senior Manager, Data Science (Director)

Commerzbank AG • Full-time

Jun 2015 - Sep 2025 • 10 yrs 3 mos

10 years at Germany's second-largest bank, building and leading data science capabilities at enterprise scale. Joined as Data Scientist in 2015, promoted to Chapter Lead in 2019, promoted to Director in 2024. LEADERSHIP: - Built and led the Data Science Chapter in Sales Analytics — a team of 12 data scientists - Designed and ran a three-year Data Science trainee program across multiple cohorts, including assessment centers and ongoing mentoring GENERATIVE AI AT SCALE: - Designed and rolled out the bank-wide AI training program for 36,000+ employees, ensuring EU AI Act compliance — rated 4.5/5 internally - Delivered 10 executive presentations on AI to decision-makers of German mid-sized companies MACHINE LEARNING IN PRODUCTION: - Built and operated a Model Factory of 130 ML models for Next-Best-Offer campaigns, with 4-week retraining cycles - Led customer churn prediction projects end-to-end — from modeling to stakeholder presentations - Worked with LLMs (GPT-3, Llama 2) for customer feedback analysis and topic clustering TECH STACK: Python, scikit-learn, H2O, XGBoost, PySpark, SparkML, Hadoop ecosystem, Google Cloud (Vertex AI, BigQuery)