Hi, I'm

Timo Racke

Data Scientist & AI Expert

I design and deploy intelligent systems — from Vision AI and Graph RAG pipelines to enterprise-grade AI platforms with governance, guardrails, and on-premise sovereignty.

About Me

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I'm a Data Scientist and AI Expert with hands-on experience building production-grade AI systems across industries. My work spans the full AI lifecycle — from exploratory data analysis and model development to deploying scalable, secure AI infrastructure.

A particular focus of mine is enterprise AI strategy and governance: designing on-premise AI platforms using tools like Ollama, implementing authentication layers, content guardrails, and responsible AI policies that meet enterprise compliance requirements. I bridge the gap between cutting-edge AI research and real-world business deployment.

Whether it's a multimodal Vision AI pipeline, a Graph RAG knowledge system, or an end-to-end LLM platform — I build AI that is robust, explainable, and trustworthy.

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Areas of Expertise

Vision AI

Object detection, image classification, OCR, and video analytics pipelines using state-of-the-art models (YOLO, ViT, SAM).

Graph RAG

Knowledge graph construction, entity extraction, and retrieval-augmented generation over structured graph databases for complex reasoning.

LLM & Chatbots

Custom chatbot development with fine-tuned LLMs, prompt engineering, multi-turn conversation management, and tool-use integrations.

Vector Stores

Semantic search infrastructure using embeddings and vector databases (Chroma, Qdrant, pgvector, Weaviate) for scalable knowledge retrieval.

AI Strategy & Governance

Enterprise AI roadmaps, responsible AI frameworks, policy design, guardrails, compliance controls, and AI risk assessment.

On-Premise AI Platforms

End-to-end private AI deployments using Ollama, open-weight models, SSO/auth integration, and air-gapped infrastructure for data-sensitive environments.

Featured Projects

Vision AI

Fruit Classifier — Vision AI Demo

Interactive fruit classifier fine-tuned on 131 categories using EfficientNet-B0 and served at sub-second latency via ONNX Runtime — no PyTorch required at inference time.

EfficientNet-B0PyTorchONNX RuntimeFastAPIFruits-360
Portrait Comic

AI Portrait Comic Generator

Snap a selfie, pick a style — Ollama Vision validates your photo, rembg removes the background, then Flux Dev FP8 img2img transforms you into a comic illustration in seconds.

ComfyUIFlux Dev FP8Ollama Visionrembgimg2img
MCP Agent

MCP Confluence Agent

Agentic AI that uses the Model Context Protocol to search, read and create Confluence pages via a tool-use loop — answering natural language questions grounded in real knowledge base content.

MCP ProtocolOllamaConfluenceTool-UseFastAPI
SDLC AI Agent

SDLC Requirement-to-Backlog Agent

AI agent that reads architecture docs from Confluence, then auto-generates a complete Jira backlog — Epic, User Stories with Acceptance Criteria, and Xray Test Cases — from a single plain-language requirement.

JiraXrayConfluenceOllamaTool-UseFastAPI
Social Media Agent

AI Social Media Content Agent

Agentic pipeline that generates platform-specific copy and hashtags, optionally renders a matching image via ComfyUI Flux Schnell, then routes through a Human-in-the-Loop approval step before publishing to Facebook / Instagram via the Meta Graph API.

OllamaComfyUIFlux SchnellMeta Graph APISSEFastAPI
Voice Studio

Voice Studio — TTS & Speech-to-Speech

Select from celebrity and character voices, then convert any text or your own recorded speech into that voice — entirely on local infrastructure using Kokoro TTS and Whisper STT.

Kokoro TTSWhisper STTSpeech-to-SpeechFastAPIMediaRecorder API
Voice Assistant

Voice Assistant — Real-Time Conversational Avatar

Live two-way voice conversation with an animated portrait avatar powered by LiveKit Agents, Ollama LLM, Kokoro TTS, and Whisper STT — entirely local, no cloud APIs required. MediaPipe-detected lip sync animates a real photo in real time.

LiveKit AgentsOllamaKokoro TTSWhisper STTMediaPipeWebRTC100% Local
Teams AI Bot

Teams AI Meeting Bot

Voice bot that joins Microsoft Teams meetings via Azure Communication Services — transcribes live audio with Whisper, conducts interactive Q&A via Ollama + Kokoro TTS, and posts a structured summary or action item list to the meeting chat through Microsoft Graph.

Azure ACSWhisper STTOllamaKokoro TTSMicrosoft GraphFastAPI
Enterprise AI Platform

On-Premise LLM Platform

Private, air-gapped AI platform built on Ollama with LDAP/SSO authentication, role-based access control, prompt guardrails, audit logging, and a multi-model API gateway for internal teams.

OllamaLlama 3KeycloakDockerGuardrails AI
Chatbot / LLM

Multi-Domain Customer Assistant

Production chatbot with dynamic RAG, intent routing across domains, human escalation logic, and a fine-tuned domain adapter. Deployed via Azure OpenAI with fallback to local Mistral.

Azure OpenAILangGraphMistralQdrantReact
Vector Store

Semantic Document Search Platform

Multi-tenant semantic search over 10M+ documents using hybrid dense/sparse retrieval (Qdrant + BM25), re-ranking, and a React-based search UI with real-time highlighting.

QdrantSentence-TransformersBM25FastAPIReact
AI Governance

AI Governance & Risk Framework

Designed and implemented an enterprise AI governance framework including model risk assessments, bias auditing pipelines, explainability reporting, and a compliance dashboard aligned with EU AI Act requirements.

EU AI ActSHAPFairlearnEvidently AIPython

Technical Skills

AI & Machine Learning

  • PyTorch / TensorFlow
  • Hugging Face Transformers
  • LangChain / LangGraph
  • LlamaIndex
  • Scikit-learn / XGBoost

Vision AI

  • YOLOv8 / DETR / SAM
  • OpenCV / Pillow
  • Vision Transformers (ViT)
  • CLIP / Multimodal Models
  • Edge Inference (ONNX, TensorRT)

Data & Storage

  • Python / Pandas / Polars
  • Qdrant / Weaviate / pgvector
  • Neo4j (Graph DB)
  • PostgreSQL / MongoDB
  • Apache Spark / dbt

AI Infrastructure

  • Ollama / vLLM / llama.cpp
  • Docker / Kubernetes
  • Azure AI / AWS Bedrock
  • MLflow / Weights & Biases
  • FastAPI / Celery

Security & Governance

  • Guardrails AI / NeMo Guardrails
  • Keycloak / LDAP / SSO
  • RBAC & Policy Enforcement
  • SHAP / Evidently AI / Fairlearn
  • EU AI Act Compliance

Languages & Tools

  • Python (primary)
  • SQL / Cypher (Neo4j)
  • Git / CI/CD / GitHub Actions
  • Jupyter / VSCode
  • Terraform / Ansible

Get In Touch

Interested in AI strategy consulting, a speaking engagement, or building something together? Let's talk.

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Responses generated by a local Ollama instance via RAG. May be inaccurate.