Nils Klüwer / AI Engineer

MAKE AI
WORK.

I build production AI systems, evaluation tools, and shared skills for coding agents. Currently at REWE Group in Cologne.

Explore my work Let’s talk
Production systems / Developer tools / Applied researchSelected work below

01 / In production

Built. Shipped.
Used.

01.1 / Extract + evaluate

LEA + Goldhamster

Co-built in a two-person team · six months

LEA turns product packaging photos and videos into structured product information. I co-built LEA and Goldhamster, an evaluation tool with a verified reference dataset, scoring, and error review.

~96%
Label accuracy on real store and distribution-centre media
<1 min
From upload to extracted data; human review before publication

Project-reported results; human approval is a separate step.

GCP · Snowflake · Gemini vision · structured outputs · automated evaluation

Hear the stakeholder perspective at 18:33

01.2 / Share + enable

Agentic engineering enablement

Six months of enablement as of September 2026

Helped colleagues in a 160-person organization use coding agents in delivery work. Built an internal skill registry to share reusable agent capabilities.

01.3 / Verify + enrich

LLMs for verification and data enrichment

Multiple internal projects

Built services that use Gemini for bounded tasks such as verification and data enrichment.

  • Verified and supplemented data with Gemini 3.x and Google Search grounding

02 / Open source

Small tools.
Less friction.

Published for Pi, a coding agent, under @nilskluewer. Selected packages cover delegation, shell-command checks, cost tracking, and Google-grounded search.

Cost transparency statuslineTokens, cache, context, model, and session cost Auto permission gateConfirmation and blocking for dangerous shell commands SubagentDelegation, resumable sessions, and approval coordination Vertex Gemini searchGrounded web search and research through Vertex AI

03 / Background

The work
behind the work.

AI Engineer

REWE Group

Junior ML Engineer

REWE Group

Working Student

Research & Innovation Engineering

M.Sc. Business Informatics

TU Wien · context-aware emotion analysis with LLMs

B.Sc. Business Informatics

WWU Münster

ACM CHI EA 2025Context over Categories · LLM-guided emotion analysis Master thesisTU Wien Repositum Coding mit KI 2026Agentic engineering at REWE Group · 23 June 2026

04 / Your next project?

LET’S
BUILD.

For engineering opportunities, project discussions, or research collaboration.

Message me on LinkedIn Explore my GitHub