Jesper Olsson
Gothenburg, Västra Götaland County, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJesper Olsson is a passionate software engineer from Gothenburg with five years of professional experience and a solid academic foundation in software engineering from Chalmers University of Technology. He specializes in backend development and has a knack for code clarity and maintainability, demonstrated through substantial refactors and design improvements in the popular SchemaSpy project. Jesper focuses on pragmatic engineering: replacing brittle patterns with polymorphism, simplifying function signatures, and extracting well-named methods to make complex codebases easier to evolve. He brings a detail-oriented approach to database tooling, having enhanced SchemaSpy’s diagram generation (`dot`) and microtype naming conventions. Colleagues would describe him as an open-source-minded developer who prefers sustainable technical debt reduction over quick fixes.
5 years of coding experience
High school, Natural Sciences, High school, Natural Sciences at Mimers Hus gymnasiumSoftware Engineering, 4.6, Software Engineering, 4.6 at Chalmers University of Technology
English, Swedish, German, Indonesian
Github Skills (7)
javas10
databases10
refactoring10
polymorphism10
java10
documentation10
database10
Programming languages (8)
Github contributions (5)
schemaspy/schemaspy
Apr 2021 - Nov 2022
Database documentation built easy
Role in this project:
Backend Developer
Backend DeveloperContributions:117 reviews, 132 commits, 504 PRs in 1 year 6 months
Contributions summary:Jesper primarily focused on refactoring and enhancing the database documentation generation process within the SchemaSpy project. Their contributions included replacing overloading with polymorphism, converting polyadic functions to niladic, and removing unnecessary singleton instances. They also worked on microtype naming conventions and extracted methods to improve code clarity and maintainability. The user's work centered on improving the `dot` functionality, which is responsible for generating database schema diagrams.
database-diagramsschemaspydatabasedatabase-documentationjava
jesperolsson-se/capsyl
Nov 2020 - Jul 2022
Visualizes Java objects' encapsulations
Contributions:120 commits, 50 PRs, 50 pushes in 1 year 8 months
javavisualizesjava-objects
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