Jeroen Rosenberg
Principal Consultant at FreshMinds
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJeroen Rosenberg is a polyglot Principal Consultant with 15 years of experience building cloud-native, event-driven microservices and delivery pipelines across finance, retail and logistics. He specializes in Kotlin, Scala and Java, blending hands-on backend implementation (including security-focused contributions to the widely used Keycloak project) with leadership roles that span technical lead to principal consultant. Known for pragmatic tool selection, he routinely applies Agile, DevOps and Continuous Delivery practices to accelerate reliable production delivery. He co-founded the Amsterdam.scala user group and enjoys mentoring teams and sharing practical lessons from complex distributed systems. Based in Amsterdam, he combines deep systems thinking from a mathematics background with a proven track record of shipping observability, streaming and CI/CD solutions. Off the clock he’s a proud father of four, which he says keeps his scheduling and prioritization skills sharp.
15 years of coding experience
17 years of employment as a software developer
Bsc, Advanced Mathematics, Bsc, Advanced Mathematics at University of TwenteBsc (Ing.), Computer Science (Advanced Algorithms), Bsc (Ing.), Computer Science (Advanced Algorithms) at Saxion University of Applied Sciences
Spanish, English, Dutch
Stackoverflow
4,622reputation
1.2mreached
51answers
12questions
java
top-5%
parsing
top-5%
bigdecimal
top-5%
Github Skills (20)
api-rest10
api-design10
restful-api10
java10
security10
javas10
rest-api10
cors9
bigdecimal9
parsing9
oid8
saml8
javascript7
concurrency6
singleton6
Programming languages (6)
Github contributions (5)
keycloak/keycloak
May 2014 - May 2014
Open Source Identity and Access Management For Modern Applications and Services
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits in 1 day
Contributions summary:Jeroen primarily contributed to the back-end aspects of the Keycloak project, specifically improving exception handling within token verification, and modifying CORS configuration. They implemented URI encoding for client IDs in referral parameters, and added support for reading client secrets for basic authentication, indicative of API and security-related contributions. Additionally, the user refactored and optimized code for improved efficiency and readability within the back-end service.
oidcauthorizationidentity-and-access-managementaccess-managementsecurity
jeroenr/kafka-k8s-monitoring
Apr 2019 - Jul 2019
Contributions:28 commits, 12 pushes, 8 branches in 2 months
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