Jakob Stemberger
IT Solution Architect at HORNBACH Baumarkt AG
Karlsruhe, Baden-Württemberg, Germany
Summary
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Senior🎓
Top SchoolJakob Stemberger is an IT Solution Architect with 13+ years of hands-on experience designing and migrating large-scale Java and SOA/EDA systems for enterprise and industrial clients. He has led architecture and technical delivery across payments, gaming, automotive and logistics domains, specializing in JEE, Spring, Quarkus, cloud-native migrations, Kubernetes and messaging platforms like Kafka and RabbitMQ. Jakob combines deep legacy-modernization expertise—having migrated monoliths to microservices and J2EE to Quarkus—with practical automation work to accelerate repeatable monolith-to-microservice transformations. He has been principal architect for high-throughput services such as payment and wallet systems and assessed safety-critical autonomous transport software for manufacturing. Based in Karlsruhe, Germany, he pairs a developer-first mindset (Java, C#, C++, scripting) with trainer experience, which helps translate complex architectures into executable team practices. An early-career background in C++ banking libraries and even vocational experience as a bike mechanic hint at a pragmatic, systems-oriented approach to problem solving.
13 years of coding experience
29 years of employment as a software developer
Informatik, Informatik at WIFI WienMusikpädagogik, Musikpädagogik at Hochschule für Musik und Darstellende Kunst WienVeterinärmedizin, Veterinärmedizin at Veterinärmedizinische Universität Wien
English, German, Spanish
Github Skills (27)
search-engine9
java9
elasticsearch9
package-json8
restful8
json7
opensearch7
nodes6
reference-implementation6
jsonpath6
json-data6
xml5
json-parser4
yaml4
command-line3
Programming languages (3)
Github contributions (5)
yaccob/sogen
Sep 2019 - Jan 2020
Contributions:222 pushes, 6 branches, 17 tags in 4 months
yaccob/ytools
Jan 2018 - Jun 2019
Command-line tools for selectively dumping nodes from `yaml` (or `json`) documents in `yaml` or `json` format.
Contributions:5 commits, 19 pushes, 1 branch in 1 year 5 months
clicommand-line-toolsnodesjson-formatcommand-line
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