Skip to content

// Portfolio

Projects

Sneak peeks of past work. Some details stay deliberately vague for confidentiality — but the essence shows.

Desktop & Networking In progress
2026 Own project

NetzAtlas

Desktop app for network documentation with automatic discovery — topology read live from the network instead of maintained by hand.

  • .NET 9
  • WPF
  • WebView2
  • SNMP/LLDP
System administration Completed
2024 Mid-sized company

Server Hardening, Backup & Monitoring

Servers secured, reliably backed up and fully monitored — an operation you can count on.

  • Linux
  • Windows Server
  • Grafana/Zabbix
  • Veeam & Borg
IT Consulting Completed
2025 SaaS startup

Architecture Review & Technology Decision

An independent second opinion before a far-reaching technology decision — with a documented recommendation.

  • Architecture review
  • Technology selection
  • ADRs
  • Roadmap
Backend & Security In progress
2026 Own project

Zero-Knowledge File Gateway

End-to-end encrypted file gateway as a SaaS — the server never sees plaintext.

  • Fastify
  • PostgreSQL
  • Redis
  • BullMQ
Infrastructure & DevOps Completed
2025 Mid-sized service provider

Kubernetes Platform Migration

Migrating a grown VM landscape onto a GitOps-driven Kubernetes platform.

  • Kubernetes
  • ArgoCD
  • Terraform
  • Helm
Development & Integration Completed
2025 Corporate group (German subsidiary)

Automated HR Data Integration

Windows service that pulls HR data from HRWorks via REST, transforms it and pushes it into the group-wide HR system (GraphQL) fully automatically — encrypted, incremental and self-healing on errors.

  • C#
  • .NET 4.8
  • Windows Service
  • REST
Fullstack Completed
2025 NDA

Real-Time Monitoring Dashboard

Live dashboard for operational metrics with sub-second updates and role-based access.

  • SvelteKit
  • WebSockets
  • TimescaleDB
  • Docker
Administration & Security Completed
2026 IT systems house

Modern Authentication & MFA for On-Prem Exchange

Introduced ADFS with an external identity provider to secure the on-prem Exchange Server SE with Modern Authentication (OAuth 2.0) and TOTP MFA — away from Basic Auth.

  • ADFS
  • Exchange Server SE
  • OAuth 2.0
  • TOTP/MFA
Automation Completed
2024 Own project

Secrets & Provisioning Automation

Automated credential distribution and device provisioning instead of manual work.

  • Node.js
  • Bitwarden
  • REST APIs
  • CLI
Domain App & Process Completed
2025 IT systems house

Guided Infrastructure Survey

Guides technicians through on-site capture of customer IT — structured, complete, all the way to a finished inventory report.

  • Web app
  • Offline-capable
  • Structured capture
  • Auto report