Johann Wiedmeier

Software Architect & Engineer

With over 10 years of experience in developing scalable systems, I create innovative cloud-native solutions for companies like AOK, Deutsche Bahn, and Telekom.

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Johann Wiedmeier
AWS Certified Solutions Architect - Associate Oracle Certified Associate Java Programmer 8 iSAQB Certified Professional for Software Architecture - Foundation Level

Core Competencies

Cloud & DevOps

  • AWS Cloud Architecture
  • Kubernetes & Container
  • CI/CD Pipelines
  • Infrastructure as Code

Backend Development

  • Java & Spring Framework
  • Microservices
  • REST APIs
  • Event-Driven Architecture

Architecture

  • Distributed Systems
  • Domain Driven Design
  • Scalable Systems
  • Cloud-native Architecture

Selected Projects

Electronic Health Record System

AOK Systems GmbH

Building software for 37 million customers in a highly regulated environment.

Java Kubernetes Kafka

Subscription Platform

Vorwerk Services GmbH

Connecting a new subscription platform and migrating millions of customers.

Spring AWS DDD

Reservation System

DB Systel GmbH

High-performance reservation system with 10,000 req/s at 95% < 30ms.

Java Angular PostgreSQL