Patrick Baumgartner
where else to find them
website:http://patbaumgartner.com
github:patbaumgartner
bluesky:patbaumgartner.com
mastodon:@patbaumgartner@mastodon.social
speakerdeck:patbaumgartner
instagram:patbaumgartner
what they talk about
all 18 in the filters
where they keep going back
- Voxxed Days Zurich6 editions2019–2026
- JCON EUROPE3 editions2023–2025
- JNation2 editions2024–2026
all 13 in the filters
on a stage with
all 10 in the filters
who talks about the same things
- Antonio Goncalves27 talks
- Federico Yankelevich16 talks
- Stephan Janssen29 talks
- Cristian Schuszter10 talks
- Thomas Vitale29 talks
- Bryan Liles42 talks
| title | conference | date |
|---|---|---|
| Green Coding with Spring Boot: Sustainability as a Path to ... | JNation 2026 | 2026-05-26 |
Shows concrete gains for Spring Boot apps: measure per request energy, run a Maven/Gradle plugin that starts Spring Boot, runs load tests five times, samples… | ||
| From Chaos to Cohesion: Building Modular Monoliths in the Real World | Spring I/O 2026 | 2026-04-13 |
A practical migration path shows moving code into top-level packages, adding Spring Modulith starters, then a single CI-enforced verification test that finds… | ||
| Welcome to Voxxed Days Zurich 2026 | Voxxed Days Zurich 2026 | 2026-03-24 |
Ten-year anniversary starts with concrete changes: a fifth room added, five rooms to host more tracks; live transcription is running as an accessibility test… | ||
| Spring Boot Observability in Practice: Actuator, Micrometer & OpenTelemetry | Voxxed Days CERN 2026 | 2026-02-10 |
Shows concrete Spring Boot wiring: Actuator endpoints (can run on a separate port with liveness/readiness probes), Micrometer meterRegistry with… | ||
| Demystifying Spring Boot Magic | Spring I/O 2025 | 2025-05-22 |
Explains how Spring Boot’s auto-configuration actually works: auto-config classes are plain @Configuration beans with proxyBeanMethods=false, listed in an… | ||
| Understanding Buildpacks: A Deep Dive Into Their Functionality | JCON EUROPE 2025 | 2025-05-12 |
Explains how the Cloud Native Buildpacks lifecycle binary and the pack CLI (or Maven/Gradle plugins) convert source into OCI images by running… | ||
| Welcome to | Voxxed Days Zürich 2025 | 2025-03-25 |
Nine years running, the conference records 688 attendees in Zurich and over 1,300 attendees across Switzerland, with more than 80–85% working locally and ~40%… | ||
| Intelligent Applications with Spring AI | Jfokus 2025 | 2025-02-03 |
Shows a concrete Spring AI setup that actually runs: local Ollama/DeepSeek 7B models via AMA for offline chat, Anthropic Claude for function calling workflows… | ||
| Lean Spring Boot Applications for the Cloud | Devoxx Belgium 2024 | 2024-10-07 |
Baseline Spring PetClinic on Java 17 starts ~5s, uses ~260MB RAM and serves ~800 RPS; upgrading to Java 21/23, enabling Spring AOT and class-data sharing… | ||
| Lean Spring Boot Applications for The Cloud | JNation 2024 | 2024-06-04 |
Benchmarks use the Spring PetClinic (H2) built with Buildpacks; baseline measures a 4.3s startup, 359MB image and ~302MB initial RAM. Applying Spring AOT… | ||
| Patrick Baumgartner at JNation 2024 | JNation 2024 | 2024-06-04 |
Shows concrete benchmarks and commands that cut Spring Boot cold-starts to half the startup time, trim JVM heap by 30% memory savings, and shrink container… | ||
| Building Lean Spring Boot Applications for the Cloud | Voxxed Days Brussels 2024 | 2024-05-21 |
Spring PetClinic containers built with buildpacks and Liberica JDK 17 start in ~4.5–5s, produce ~360MB images and use ~300MB RAM while handling ≈2,000 req/s… | ||
| Lean Spring Boot Applications for the Cloud | DevDays Europe 2024 | 2024-05-20 |
Benchmarks show concrete wins: baseline image ~358 MB, startup ~4.5 s, idle RAM ~300 MB and ~470 MB after ~2k req/s; switching JDK from 17 to 21 improves… | ||
| Insights From A Spring Boot Leisure Project for Everyday Developer Life | JCON EUROPE 2024 | 2024-05-13 |
Builds a Spring Boot service that accepts Telegram images, resizes them with imgscalr, and forwards PNGs to a reverse‑engineered GraphQL API discovered by… | ||
| Insights From a Spring Boot Leisure Project for Everyday Developer Life | Microsoft JDConf 2024 | 2024-03-27 |
Developer reverse engineers the Android app with APKLab reverse engineering to call the device's undocumented GraphQL API, then builds a Telegram bot + Spring… | ||
| Welcome to the 8th edition of | Voxxed Days Zürich 2024 | 2024-03-07 |
Welcome edition announces community-run conference with volunteers in yellow shirts, local Swiss focus and recurring side events; registration shows 546… | ||
| Exploring Spring Boot Clients: A Comprehensive Overview | Voxxed Days Ticino 2024 | 2024-01-19 |
Starts with a surprising history: the jdbc template dates to 2001 (predating Spring), Spring is ~20 years old and Spring Boot ~10, and templates still run in… | ||
| Lean Spring Boot Applications for the Cloud | JCON Europe 2023 | 2023-06-20 |
Covers techniques to make Spring Boot applications leaner for the cloud by reducing startup time and memory footprint. Discusses specific Spring Boot features… | ||
| Transform productivity with AI experiences in Microsoft Fabric | Microsoft Build 2023 | 2023-05-23 |
Microsoft announces Microsoft Fabric: a SaaS data platform with OneLake as a unified storage layer and built‑in Copilot across Data Factory, Synapse… | ||
| Data analytics for the era of AI | Microsoft Build 2023 | 2023-05-23 |
Microsoft announces Microsoft Fabric: a SaaS analytics platform with OneLake as a single Delta/Parquet data lake, unified table- and column-level security and… | ||
| Welcome | Voxxed Days Zurich 2023 | 2023-03-16 |
Conference opens with logistics and numbers: venue runs as a community hobby event with sponsors covering costs, about 274 submissions for roughly 35 slots, 36… | ||
| Lean Spring Boot Applications for The Cloud | Voxxed Days Ticino 2023 | 2023-01-20 |
Baseline container is ~312 MB image with ~430 MB RAM and ~4 s cold startup. Swapping to Java 19 saves ~0.4 s; forcing C1 JIT cuts ~90 MB RAM and ~0.66 s from… | ||
| Welcome | Voxxed Days Zürich 2022 | 2022-05-17 |
After two years offline the community event returns with 618 attendees across three packed rooms and about 40 talks, organized by developers in their free time… | ||
| Chaos Engineering with Spring Boot | JCON 2020 | 2020-10-27 |
Introduces practical Chaos Engineering by adding the Chaos Monkey for Spring Boot dependency (ships dormant until profile enabled), which wraps Spring beans… | ||
| Welcome Voxxed Days Zürich | Voxxed Days Zurich 2019 | 2019-03-19 |
Welcome notes list concrete logistics and metrics: 40 speakers and 1200+ attendees across three Swiss events, 20% year‑over‑year growth, over 40% of speakers… | ||
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