Senior Data & AI Engineer based in Frankfurt am Main, Germany. I have spent 12+ years building data products, platforms, pipelines, dashboards, analytics, AI applications and building out data teams primarily in Fintech across the DACH region. I specialise in the intersection of data engineering, analytics and applied AI — designing solutions that are production-ready, not just proof-of-concept. I am comfortable sitting close to the business, asking the right questions and translating those into technical requirements and solutions that offer the biggest impact for the business.
Data Engineering
Snowflake Postgres DuckDB AWS Azure FastAPI Redis dbt Alteryx KNIME Apache Airflow Apache Iceberg
Programming
Python SQL PySpark
AI & LLMs
Pydantic AI LangChain RAG Hybrid Search Agentic AI OpenAI Anthropic OLlama Claude Code Codex
AI Observability and Monitorings
LangFuse Sentry OepnTelemetry
Platforms
Palantir Foundry Palantir AIP Amplitude Snowplow
| Project | What it does | Stack |
|---|---|---|
| Governed ARR Semantic Layer | A minimal, production-shaped ARR metric product with governed definitions, repeatable validation, and a clear operating model from raw inputs to consumable metrics.This repository demonstrates one certified business metric, Ending ARR, implemented as a governed data product rather than a loose analytics demo. | dbt · Snowflake · Semantic Layer · DuckDB |
| Agentic AI Backend Launchpad | Deploy an Agentic AI backend with just a few commands | FastAPI · Redis · Redis Celery · PostgreSQL · ChromaDB · Langfuse, Sentry, OpenTelemetry |
| Production RAG Evaluation Suite | Complete RAG system with pgvector and multi-LLM support | Pydantic AI · pgvector · OpenAI · Claude |
| AI Job Search CRM | CRM Style Job Aggregated with ATS Scoring via AI Inference | FastAPI · React · SQLite · Anthropic · ATS Scoring · CRM Style · Scraping |
| AI Cover Letter Agent | CV + Job Description → tailored cover letter | Python · LLM APIs |
| LangGraph Workflow Examples | Practical LangGraph workflow examples | LangGraph · Python |
- 📍 Frankfurt am Main, Germany
- 🏦 Previously: Qonto, Penta, Solarisbank, OptioPay, BDO, RSA Security
- 🎓 Palantir Foundry Aware - Professional Certificate
- 🎓 M.Sc. Business Intelligence & Process Management — HWR Berlin
- 🔍 Open to senior data engineering and AI engineering roles (hybrid Frankfurt am Main area, remote-first DACH & international)
- 🌐 Portfolio Aoo · oferkulka.com · LinkedIn
Certified Palantir Foundry practitioner · Foundry & AIP Builder (hands-on project experience) · Available for contract and permanent roles