Expertise

Backend engineering, modernisation & hands-on problem solving.

I support businesses in engineering dependable backends, tracking down tricky bugs, and stabilizing legacy platforms – with a passion for learning new business domains and mentoring developer teams.

01

Senior Backend Engineering

Business critical backends are built and evolved with clear business logic, robust data models and maintainable interfaces.

  • .NET, C# and ASP.NET Core
  • Java, Spring Boot and Quarkus
  • REST, OpenAPI and messaging
  • Persistence and data modelling

02

Modernisation and Stabilisation

Established applications are improved incrementally without putting ongoing operations at risk through unnecessary wholesale replacement.

  • Analysis of technical shortcomings
  • Refactoring and modular evolution
  • Automated tests and quality measures
  • CI/CD, operations and monitoring

03

APIs and Systems Integration

External platforms, data sources and existing enterprise systems are integrated reliably into business processes.

  • API design and implementation
  • Payment providers and external services
  • Identity, security and authorisation
  • Synchronous and asynchronous integration

04

Technical Ownership

Architecture decisions, code reviews and technical leadership create clarity without replacing hands on software engineering.

  • Architecture and system design
  • Technical project leadership
  • Engineering standards and reviews
  • Mentoring and stakeholder communication

Technology profile

Technologies, placed in context.

I focus on technologies that I use not only to build complex applications, but to take ownership across architecture, operations and continuous evolution.

Backend

.NET & C#

A long-standing primary stack for business-critical applications and platforms.

Core expertise
Backend

ASP.NET Core

APIs, identity, business logic and data access with Entity Framework Core.

Core expertise
Enterprise

Java & Spring

Enterprise backends and platforms using Spring, JPA and Hibernate.

Extensive experience
Web

Blazor

Modern web interfaces in the .NET ecosystem, closely integrated with the backend.

Core expertise
Cross platform

Flutter

Maintainable apps and portals with Dart, BLoC and Clean Architecture.

Core expertise
Data

PostgreSQL & SQL Server

Data modelling and persistence for complex business domains.

Extensive experience
Platform

Docker & Kubernetes

Containerised deployments, CI/CD and production-oriented operations.

Project experience
Integration

REST & OpenAPI

Clear interfaces and dependable integration of external systems.

Core expertise

Contact

Has your backend grown difficult to change, or is the project stuck?

I help when bugs are hard to trace, new integrations are needed, or the team needs someone to connect architecture with hands-on delivery.

A good fit when …

  • an established backend has become difficult to change
  • several systems or APIs need to work together
  • technical ownership needs to be shared or clarified
  • Available now
  • Conversations welcome now
  • Remote and hybrid
  • Mönchengladbach and Düsseldorf