# Patrick Baumgartner

> Java Champion, Technical Agile Coach, and Software Crafter at 42talents in Zurich, Switzerland. Helping teams build elegant, robust software with Java, Spring, and modern cloud technologies.

## About

Patrick Baumgartner is a Java Champion, Oracle ACE, Technical Agile Coach, and passionate Software Crafter based in Switzerland. He works with teams and developers to create clean, maintainable, and modern software with a focus on Java, Spring, and cloud technologies — and on people and learning together.

- Name: Patrick Baumgartner
- Roles: Java Champion, Technical Agile Coach, Software Crafter
- Company: 42talents (https://42talents.com)
- Location: Zurich / St. Gallen, Switzerland
- Languages: English, German
- Website: https://patbaumgartner.com/
- Email: contact@patbaumgartner.com

## Expertise

- Java, Spring Framework, Spring Boot, Spring Cloud, Spring Modulith, Spring AI
- Cloud Native Buildpacks, Kubernetes, Docker, OpenShift, VMware Tanzu
- Software Architecture: Microservices, Modular Monoliths, DDD, Clean Architecture, Hexagonal, CQRS, Event Sourcing
- Testing: TDD, BDD, JUnit, Mockito, Mutation Testing, Property-Based Testing, Contract Testing
- Agile, Lean, Scrum (PSM I), Technical Coaching, Software Craft
- Public Speaking, Workshops, University Teaching

## Roles & Communities

- 42talents — Java Champion, Technical Agile Coach (2014–present)
- ZHAW School of Engineering — Lecturer (2013–present)
- JUG Switzerland — Board Member (2019–present)
- SoCraTes Conference Switzerland — Organizer (2017–present)
- Voxxed Days Zürich — Co-Organizer (2016–present)
- Software Crafters Zurich Meetup — Co-Host (2014–present)
- swissICT (Lean, Agile and Scrum) — Expert Team Member (2008–present)
- VMware Certified Instructor (Spring) (2011–present)

## Recent Articles

- Green Coding mit Spring Boot (entwickler.de, December 2025) — https://entwickler.de/spring/green-coding-mit-spring-boot
- Embabel: neuer Standard für produktionsreife AI Agents (entwickler.de, February 2026) — https://entwickler.de/software-architektur/embabel-neuer-standard-fur-produktionsreife-ai-agents
- MCP-Server mit Spring Boot und AI meistern (Java Magazin, June 2025) — https://entwickler.de/spring/mcp-server-mit-spring-boot-und-ai-meistern
- Spring Boot 3.5: mehr Struktur, neue Freiheiten (Java Magazin, June 2025) — https://entwickler.de/spring/spring-boot-35-mehr-struktur-neue-freiheiten
- Neuerungen in Spring Framework 6.2 und Spring Boot 3.4 (Java Magazin, December 2024) — https://entwickler.de/spring/spring-framework-spring-boot

All articles: https://entwickler.de/experten/patrick-baumgartner

## Blog Posts

- Sending Emails with Spring Boot — https://patbaumgartner.com/blog/2021/09/03/sending-emails-with-spring-boot.html
- ShedLock with Spring Boot — https://patbaumgartner.com/blog/2021/08/29/shedlock-with-spring-boot.html
- Sentry with Spring Boot — https://patbaumgartner.com/blog/2021/08/24/sentry-with-spring-boot.html

## Speaking (Selected)

### 2026
- JNation 2026 (Coimbra, May 26-27) — Building Modular Monoliths with Spring Modulith (Workshop)
- JNation 2026 (Coimbra, May 26-27) — Green Coding with Spring Boot: Sustainability as a Path to Better Software (Session)
- JAX Mainz 2026 (May 4-8) — Embabel: Agentic AI – Planen statt Prompten (Session)
- JAX Mainz 2026 (May 4-8) — Modulare Monolithen in der Praxis (Session)
- JAX Mainz 2026 (May 4-8) — Modulare Monolithen mit Spring Modulith (Workshop)
- Devoxx Greece 2026 (Apr 23-25) — Understanding Buildpacks: Delving Deep into Their Functionality (Session)
- Spring I/O 2026 (Apr 14-15) — From Chaos to Cohesion: Building Modular Monoliths in the Real World (Session)
- Voxxed Days Amsterdam 2026 (Apr 1-2) — Spring Boot in the Cloud: Advanced Optimization Deep Dive (Deep Dive)
- JavaLand 2026 (Mar 10-12) — Spring Boot in der Cloud: Deep Dive in fortgeschrittene Optimierung (Session)
- Voxxed Days CERN 2026 (Feb 10) — Spring Boot Observability in Practice: Actuator, Micrometer, and OpenTelemetry (Session)

### 2025
- JRush Episode 6 (Nov 18) — Buildpacks Unpacked: Hacking Spring Boot Builds with Custom AOT Caching (Online Session)
- W-JAX 2025 (Nov 4-8) — Monolithen modernisieren mit Spring Modulith (Workshop)
- W-JAX 2025 (Nov 4-8) — Alles, was du über Cloud Native Buildpacks wissen musst (Session)
- BaselOne 2025 (Oct 17) — Building Modular Monoliths with Spring Modulith (Workshop)
- JAX London 2025 (Oct 8-10) — Intelligent Applications with Spring AI (Workshop)
- Devoxx Belgium 2025 (Oct 7-11) — Spring Boot in the Cloud: Advanced Optimization Deep Dive (Session)
- JavaDay Lviv 2025 (Jul 12) — Intelligent Applications with Spring AI (Session)
- Devoxx Poland 2025 (Jun 17-19) — Optimizing Spring Boot Applications for The Cloud (Session)

All sessions: https://sessionize.com/patbaumgartner

## Social

- GitHub: https://github.com/patbaumgartner
- LinkedIn: https://linkedin.com/in/patbaumgartner
- X (Twitter): https://x.com/patbaumgartner
- Bluesky: https://bsky.app/profile/patbaumgartner.com
- Mastodon: https://mastodon.social/@patbaumgartner
- Threads: https://www.threads.com/@patbaumgartner
- Sessionize: https://sessionize.com/patbaumgartner
- Oracle ACE Profile: https://ace.oracle.com/ords/ace/profile/patbaumgartner

## Contact for Collaboration

Open to: technical agile coaching, Spring/Java workshops, conference talks, advisory engagements, mentoring.
Preferred contact: contact@patbaumgartner.com