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Work

Selected projects.

A cross-section of applications, LLM systems and infrastructure, built and in production.

These references show production work: no mockups, no concept studies. They're organized around how we actually operate: "01 · Apps" covers web and enterprise applications that replace or connect processes; "02 · LLM" covers our own AI models on our own hardware, with no detour through third-party APIs; "03 · IT" is the operations underneath, the infrastructure that carries these systems. The collection is growing: eight projects are documented here today, three more are in internal review.

Customer data in copy and images has been neutralised.

02 · LLMThe four hosts of the AI fleet with roles and GPUs

Enterprise AI stack, built in-house

Four GPU hosts, one model family for every chat lane, automatic failover and an honest look at five weeks of rebuilding.

4 hosts, three of them with GPUs1 model family behind every chat lane262.144 tokens of context on the main lane
03 · ITLive log view of the activity center

SIEM & security monitoring with real-time correlation

Company-wide logs in one place, and only the alerts that matter.

~30 integrated systems~60 monitors & correlation rules~7M events per day
01 · AppsOverview page of the controlling cockpit with key figures and projection

BI & controlling apps for management

From Excel chaos to a group cockpit: numbers for Monday morning and not month-end.

14 cockpit views20+ BI dashboards9 data sources
03 · ITGraphic: six Proxmox nodes with the number of virtual machines per node

Migrating from VMware to Proxmox

Out of the licence trap: a six-node HA cluster across two sites, migrated during live operation.

6 hosts2 sites57 VMs under HA management
02 · LLMStart view of the company AI portal

Company AI portal on its own GPUs

ChatGPT comfort in-house: 5 models, 32 tools, ~90 user accounts. Chats and documents stay in-house.

15 model routes6 GPUs on-prem32 tool connectors
02 · LLMGraphic: three reading lanes converging into one comparison with per-field consensus

AI document processing with consensus checking

PDFs read three ways (vision model, text model, rule engine) and only written to the ERP when they agree.

3 reads per document≤ 3 min hard cap per document100 % on-premise
01 · AppsOverview of all flows with failure rate and average run time

Process automation with n8n

26 small watchdogs and data bridges that report before month-end does.

26 workflows in production~300 runs per day0 € licence cost
01 · AppsDashboard of our own SEO tool with visibility and lead figures

Web development with SEO & GEO

Websites that get found: by Google and by AI search.

2400+ actively tracked keywords4 domains140k ranking snapshots
03 · ITManagement view with completion score and open items

NIS2 compliance platform

55 controls, clear owners, automatic reminders: compliance as a living process.

55 controls14 areas13 recurring duties
01 · AppsStart page of the warehouse app with its flows and current key figures

Mobile warehouse & shipping app

Seven warehouse workflows on the handheld: from goods-in to the carrier label.

7 warehouse workflows live1.2M+ stock movements logged4 carrier label formats
03 · ITFive steps of an inbound message with the figures of the last 30 days

A mail gateway we run ourselves

Our own mail gateway: every inbound message is scanned twice for malware and held when in doubt instead of delivered.

92.000 inbound messages in 30 days11 % of them rejected at the gateway2 virus scanners, both must report clean
03 · ITDiagram of the Microsoft 365 backup onto a ZFS store with a snapshot ladder

Our own Microsoft 365 backup with restore at the click of a button

Mailboxes, OneDrive, SharePoint and Teams of the group, backed up to our own storage with the restore in the hands of IT.

4 protected services: Outlook, OneDrive, SharePoint, Teams~750 GB in the backup store, as of October 202601:00 a.m.: the nightly backup run