Sebastian Berg
Freelance Java Developer at LESS IS MORE Group (Sebs Holding ApS)
Copenhagen, Capital Region of Denmark
Summary
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SeniorSebastian Berg is a freelance Java architect and senior developer based in Copenhagen with over 20 years of hands-on experience in Java and Linux and 12 years of formal professional experience. He specializes in high-performance, persistence and distributed systems—covering Hibernate/JPA, NoSQL, Solr/Lucene, Hadoop, Spring, Docker and microservice patterns (Eureka, Hystrix, Zipkin). Sebastian is the creator of NoJPA, a Hibernate-like project that transparently lets developers target SQL or NoSQL backends, demonstrating a pragmatic drive to simplify persistence abstractions. Comfortable across application servers (JBoss/WildFly, WebLogic, Tomcat) and cluster environments, he blends deep performance tuning, concurrency expertise and infrastructure automation (Ansible, Docker). Known for applying master-worker design patterns and reflection-driven solutions, he prefers solving complex scalability and persistence challenges for enterprise-grade systems.
12 years of coding experience
English, Danish, Norwegian, Swedish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (4)
docker2
docker-image2
docker-container1
dropbox1
Programming languages (3)
Github contributions (5)
NoJPA-LESS-IS-MORE/NoJPA
Aug 2013 - Jan 2014
NoJPA is an open-source framework built by LESS IS MORE, designed for developers by developers.
Contributions:51 commits, 1 push in 5 months
less-is-morenojpaframeworkfor-developersframeworks
powerbart/jakarta-solrj
Mar 2025 - Mar 2025
Contributions:1 push, 1 branch in 1 day
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