💡 Java Champion | Technical Agile Coach | Software Crafter
I help teams deliver clean, secure, and reliable software while fostering a culture of learning and collaboration.
Driven by curiosity, continuous improvement, and problem-solving, I believe in crafting software with care — from architecture to production.
🏆 Recognized as a Java Champion for contributions to the Java and Spring ecosystem.
- Java & Spring Boot — deep expertise across microservices, cloud-native architectures, and enterprise applications
- Cloud Native Buildpacks & Paketo — enabling fast, portable, and reproducible container builds
- Spring AI, LLMs & Agentic Systems — practical AI integration in enterprise Java applications
- Observability — Micrometer, Prometheus, Grafana, OpenTelemetry, and distributed tracing
- Automation, Testing & Security — sustainable software quality through CI/CD and DevSecOps practices
- Open-source contributions — guided by the Boy Scout Rule: leave things better than I found them
If you attended one of my talks or workshops, you can find the code below — most recent first, or 👉 browse all repositories:
| # | Talk / Deep Dive | Key Topics | Presented at |
|---|---|---|---|
| 1 | Spring Boot in the Cloud: Advanced Optimization Deep Dive | 3-hour hands-on workshop: memory reduction, startup time, Spring AOT, classpath exclusions, lazy beans, actuator, and JVM tuning | Devoxx BE 2025, NCA 2025, JavaLand 2026, Voxxed Days Amsterdam 2026 |
| 2 | Understanding Buildpacks: Deep Dive into Cloud Native Buildpacks | Lifecycle internals, the Paketo project, rebasing, reproducibility, and real-world CI/CD integration with Spring Boot | JCON 2025, Devoxx GR 2026, JChampion Conf 2026 |
| 3 | Stop Prompting, Start Planning — Reliable Agentic AI with Embabel | Goal-Oriented Action Planning (GOAP) for controllable, explainable, testable enterprise agents in Java & Spring | JAX 2026, JUG CH Basel 2026 |
| 4 | From Chaos to Cohesion: Building Modular Monoliths in the Real World | Incremental Spring Modulith adoption in existing codebases — finding boundaries, introducing modules, and keeping structure clear | JAX 2026, Spring I/O 2026 |
| 5 | Spring Boot Observability in Practice | Actuator endpoints, Micrometer metrics to Prometheus, Grafana dashboards, and distributed tracing with OpenTelemetry — from local dev to Kubernetes | W-JAX 2025, Voxxed Days CERN 2026 |
| 6 | Green Coding with Spring Boot: Sustainability as a Path to Better Software | Resource-efficient Spring Boot through architectural principles, data structures, and cloud optimization | entwickler.de Summit 2025, JNation 2026 |
| 7 | Lean Spring Boot Applications for the Cloud | Optimize startup time and memory footprint with Spring AOT, classpath exclusions, lazy beans, custom JVM options, and observability | BaselOne 2023, Heapcon 2023, JAX 2023, JCON 2023, JUG CH St. Gallen 2023 - Includes Spring Boot 3.1, JUG CH Zürich 2023 Talk with Spring Boot 3.2, Noser E-Days 2023, W-JAX 2023, Devoxx BE 2024, JAX 2024, Spring I/O 2024, OpenValue Meetup 2025 |
| 8 | Intelligent Applications with Spring AI | Practical integration of LLMs, chat interaction, image generation, and audio transcription in enterprise applications using Spring AI | Better Code Spring 2025, JavaLand 2025, JAX 2025, Jfokus 2025, JUG DA 2025, W-JAX 2025 |
| 9 | Buildpacks Unpacked: Hacking Spring Boot Builds with Custom AOT Caching | Extend the Paketo buildpack pipeline with a custom AOT class-loading cache and benchmark the startup impact | JRush 2025 |
| 10 | Insights From a Spring Boot Leisure Project | A developer story in three acts: Android, Spring Boot, Buildpacks, GitHub Actions, Docker, GraphQL, and API breaking changes | W-JAX 2023, JCON 2024 |
| 11 | Soul Mates and Partners in Crime — What Quarkus and Spring Boot Can Learn from Each Other | GraalVM-native capabilities, startup efficiency, and cross-pollination of ideas between frameworks | JAX 2024 |
| 12 | Exploring Spring Boot Clients | Templates, Interface Clients, and client abstractions for connecting to databases, REST APIs, and external services in enterprise applications | W-JAX 2024 |
| 13 | Spring Boot 3.0 is Coming | Java 17 baseline, Jakarta EE migration, GraalVM native images, and Spring Boot Migrator | entwickler.de Live-Event 2023 |
| 14 | Chaos Engineering with Spring Boot | Embrace failure as a feature using Chaos Monkey for Spring Boot — resilience testing, chaos principles, and attack scenarios in microservice architectures | JCON.ONE 2022, W-JAX 2022 |
| 15 | Demystifying Spring Boot Magic | Deep dive into auto-configuration: AutoConfiguration.imports, @AutoConfiguration, @Conditional, and how to write your own Spring Boot starter | W-JAX 2022 |
| 16 | Application Architecture Patterns | Microservice, self-contained system, and modulithic architectures — trade-offs, patterns, Conway's Law, DDD, and practical frameworks for building better applications | Noser Kickoff 2021 |
- Conference & Meetups — I enjoy speaking and running hands-on workshops on Java, Spring Boot, cloud-native, and AI
- Coaching & Training — happy to start with a short discovery call
🌐 patbaumgartner.com
📬 contact@patbaumgartner.com
