senn-techsenn-tech
Services

What we build.

Six disciplines, one coherent stack — from the application through website, data and language model to the infrastructure it all runs on.

01 · Apps

Enterprise App Vibecoding

Business-critical applications, AI-assisted and built fast — without sacrificing maintainability or cleanliness. From prototype to production.

Next.jsReactNodeMedusaStripePostgreSQL
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  • ›Internal tools: calculators, time tracking, mobile data capture
  • ›E-commerce with Medusa & Stripe, headless architecture
  • ›Dashboards, admin panels, workflow automation with n8n
  • ›Clean data models, real persistence, no fake features
02 · Web

Websites and online shops that are built

Company site, landing page or shop — as a real application rather than a page builder carrying thirty add-ons. Multilingual, fast and measurable. This site is the working example.

Next.jsKirbyMedusaStripeCaddyMatomo
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  • ›Company sites and landing pages in Next.js, shipped multilingual
  • ›Online shops with Medusa and Stripe, headless instead of monolith
  • ›An editing system your people can actually operate: Kirby or MDX in the repository
  • ›Operations included: certificates, reverse proxy, image optimisation, analytics
03 · Data

Your figures in one place, current every morning

Data from ERP, shop, time tracking and bank brought into one model — with dashboards that are already right first thing in the morning, and figures nobody argues about in the meeting.

MetabaseSQL ServerPostgreSQLETLGristEBICS
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  • ›Data hub: ETL pipelines from ERP, inventory, shop and bank
  • ›Dashboards and KPI cockpits with Metabase
  • ›SQL Server and PostgreSQL: modelling, queries, tuning
  • ›Replacing discontinued reporting servers without changing licences
04 · LLM

Corporate LLM Stack

Your own language models under your control — on hardware in-house or on rented GPU capacity inside the EU. Inference, RAG and voice run GDPR-compliant, without a detour through somebody else’s consumer API.

vLLMOllamallama.cppQdrantOpenWebUIPipecat
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  • ›On-prem inference on RTX 5090 with vLLM, Ollama, llama.cpp
  • ›RAG over your documents with Qdrant & OpenWebUI
  • ›Voice agents for the phone with Pipecat & Asterisk
  • ›Automation & agent workflows, integrated into your systems
05 · IT

General IT Solutions

The foundation everything runs on: high-availability infrastructure, security and operations — planned, set up and maintained for the long run.

ProxmoxHetznerLINBITMinIOGraylogCrowdSec
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  • ›Virtualization & HA with Proxmox, LINBIT DRBD/LINSTOR
  • ›Hosting on Hetzner & own hardware, MinIO object storage
  • ›Security: firewalling, CrowdSec, monitoring with Graylog
  • ›Mail servers, backups, maintenance and updates
06 · SEO

Getting found — on Google and inside AI answers

Technical SEO, structured data and content, plus our own rank tracking instead of an agency report. And the second front: ChatGPT, Perplexity and AI overviews should name you as a source too.

MatomoSchema.orgIndexNowSearch Consolellms.txtrank tracking
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  • ›Technical SEO: indexing, load time, structured data, sitemaps
  • ›GEO: preparing content so AI systems can cite it
  • ›Our own rank tracking and analytics on our own hardware
  • ›Honest measurement: clicks and enquiries, not a visibility index
Work

Selected projects.

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

Enterprise App

Angebots-Kalkulator

B2B quoting and pricing calculator — fast input, clean PDF output.

Next.jsPostgreSQLPDF
Enterprise App

Zeiterfassung & MDE

Mobile time tracking and data capture for field and shop-floor teams.

ReactNodePostgreSQL
Enterprise App

Lernplattform

E-learning platform with courses, progress tracking and analytics.

Next.jsPostgreSQL
Corporate LLM

On-Prem RAG-Assistent

Document assistant on own hardware — sourced answers, no cloud.

vLLMQdrantOpenWebUI
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Corporate LLM

Telefon-Voice-Agent

AI phone agent: understands, answers, documents — in real time.

PipecatAsteriskLLM
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Enterprise App

Headless Webshop

Headless commerce with Medusa & Stripe and a custom storefront.

MedusaStripeNext.js
IT infrastructure

HA-Cluster

High-availability Proxmox cluster with LINBIT storage and monitoring.

ProxmoxLINBITGraylog
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Enterprise App

Workflow-Automatisierung

Business processes automated with n8n — integrations, triggers and AI steps.

n8nWebhooksLLM
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IT infrastructure

Self-hosted Mail

Own mail server with Stalwart and webmail — GDPR-compliant, no third parties.

StalwartRoundcubeCaddy
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