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Wippeskuhlen 53, 57439 Attendorn  ·  *29.04.1986  ·  German

Fabian Wörenkämper

Senior Full Stack Data Scientist @ Krombacher

End-to-end owner of AI products — from AWS and Databricks through ML/GenAI services to live iOS apps in the App Store. Forecasting, classification, root cause analysis and MLOps, accelerated by agentic AI development with Claude Code.

[email protected] +49 171 274 956 0 faffi.cloud in/fabian-woerenkaemper
Fabian Wörenkämper
14+ yrs
engineering, simulation & data science
3
apps shipped to the App Store, end-to-end
−80%
document-processing cost with Textract + Bedrock
10+
side projects live — apps, club tools, data pipelines
01Experience
2026 — now
Senior Full Stack Data ScientistPROMOTED 01/2026
Krombacher · KSA
  • Current project: data-driven root cause analysis in bottling (filling lines)
  • Driving adoption of agentic AI development workflows (Claude Code: skills, hooks, MCP servers, sub-agents) to accelerate AI delivery
  • Continued technical lead for AWS- and Databricks-based ML and GenAI services
2022 — 2025
Data Scientist
Krombacher · KSA
  • Full stack data science on classification and forecasting; AWS infrastructure as code (OpenTofu, Serverless Framework)
  • Databricks platform with Unity Catalog, Delta Lake and Workflows for production ML pipelines
  • Klippa-replacement PoC with AWS Textract + Bedrock (Claude 3.5 Sonnet), evaluated with Deepeval; led two students — −80% cost +16% detection quality
2020 — 2022
Data Scientist
Bosch Rexroth · Big Data & Simulation
  • Development and AWS migration of ODiN (predictive maintenance); dashboards and data visualization with Python
2016 — 2020
PhD Student
Bosch Rexroth · CoC Fluid & Structural Mechanics
  • Multi-domain optimization workflows for valve housing design; lifetime computation tool in C++ with university partners
2012 — 2016
Development Engineer
Bosch Rexroth · Valve Development
02Education
2016 — 2020
PhD in Simulation Methods
Bosch Rexroth
2006 — 2012
Dipl.-Ing. Computational Engineering Science
RWTH Aachen
  • Combustion & fluid mechanics · diploma thesis 1.3 on valve-housing optimization with evolutionary strategies
03Talks & Publications
02/2026
Podcast guest — Data Science Deep Dive #88 (INWT)
Fabian WörenkämperSenior Full Stack Data Scientist
faffi.cloud · 02/02
06Selected personal projects

Built and run end-to-end in my spare time — product, backend, infrastructure and operations. More at faffi.cloud/projekte.

mAI Whisky & mAI Wine

App Store · 2026
Two iOS apps on one shared backend — maitasting.app
  • Vision-LLM label recognition: photo in, bottle with brand, region and vintage in the collection; notes become flavor radar charts
  • Monorepo with ~80% shared UI; one FastAPI backend on Railway EU serves both apps
FastAPIReact NativePostgreSQLRailwayVision LLM

Drink-Booking iPad App

App Store · 2026
Kiosk app replacing the paper tally list at the TC Blau-Weiß club bar
  • Select member or tap NFC, pick drink — done
  • Multi-iPad sync via CloudKit, monthly export for the treasurer
SwiftUISwiftDataCloudKitNFC

TC Blau-Weiß Club Suite

Live · 2026
Digital toolkit for my tennis club — tc-bw-attendorn.de
  • WordPress → Hugo + DecapCMS, $0 hosting; results synced from nuLiga, an LLM agent turns board e-mails into pull requests
  • Winter-round web app, Medenspiel lineup planner, social-media graphics generator
HugoFastAPIHTMXCloudflareLLM agent

Kinderbasar Biekhofen

Live · 2026
Ops platform for a kindergarten flea market — basar.faffi.cloud
  • Registration with waitlist, offline-capable checkout, per-seller settlement as PDF/CSV
  • Dry-run mode for the organising team; 495 tests
FastAPIPostgreSQLHTMXRailway

NarrAItive

Archive · 2023 — 25
AI picture books starring our own kids
  • One prompt in: story in ten chapters, an illustration per chapter, narration with a cloned voice
  • My first app combining text, image and speech generation
StreamlitGPT-4DALL·E 3ElevenLabsDuckDB

Smart Home & Data Lab

Self-hosted · 2024 —
Self-hosted on a Synology NAS — also: smart-plug event detection, Doppelkopf analytics
  • Next-day solar-surplus forecast: RandomForest on DWD ICON weather, morning push with the best hours to run appliances
  • Home Assistant wall display: calendar plus to-dos scraped from the Sdui school app
PythonInfluxDBGrafanaHome AssistantDuckDBDocker
07About me

Husband, father of a 6-year-old daughter and a 4-year-old son — by far the most important part of my life. Beyond that: unapologetically cheerful, allergic to consensus theatre, and convinced the best ideas show up in a kitchen, on a tennis court, or somewhere over a pint — not in a status meeting. I would rather ship a rough POC tonight than read another hype-driven framework review tomorrow.

08How I work
Ship over specOwn the full stackHonest tech opinionsCuriosity over hypeFamily first, always
09Off the clock
Bundesliga matchdaysTennis · TC Blau-WeißCooking for friendsKrombacher field-testingeSports
Updated October 2026Fabian Wörenkämper · [email protected] · faffi.cloud