John Tinnerholm
Postdoctoral Researcher at Santa Anna IT Research Institute
Linköping, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJohn Tinnerholm is a postdoctoral researcher and seasoned software engineer with 11 years of experience, combining deep academic training in computer science (PhD/LIC) with hands-on development in model-based simulation tools. Based in Linköping, Sweden, he has a strong track record of improving backend systems and GUIs—most notably contributing refactors and reliability fixes to the prominent open-source OpenModelica project. His work bridges rigorous research and practical engineering, focusing on code reusability, annotation parsing robustness, and user-facing drawing interactions. John’s background includes industry roles at Arccore and Vector as well as long-term academic research at Linköping University, giving him fluency in both automotive/embedded toolchains and scientific software. Outside of code he reads widely—history, sociology and literature—and brings that broader perspective to problem framing and communication. Colleagues describe him as a pragmatic contributor who prefers subtle, high-impact improvements over flashy rewrites.
11 years of coding experience
1 year of employment as a software developer
Gymnasieexamen Samhällsvetenskap, Gymnasieexamen Samhällsvetenskap at PlatengymnasietDoktorsexamen Datalogi, Doktorsexamen Datalogi at Linköping University
German, English, Swedish
Github Skills (11)
compiler10
c-language10
compiler-compiler10
front-end-development10
cprogramming-language10
qt10
modelica10
algorithms8
algorithm8
data-structures8
data-structure8
Programming languages (16)
Github contributions (5)
OpenModelica/OpenModelica
May 2019 - Dec 2021
OpenModelica is an open-source Modelica-based modeling and simulation environment intended for industrial and academic usage.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 reviews, 55 commits, 115 PRs in 2 years 7 months
Contributions summary:John primarily contributed to the OpenModelica project by refactoring and optimizing code related to annotations and the graphical user interface. They introduced new methods and functions within the `LineAnnotation` class, specifically to improve code reusability. The changes also include enhancements to the GUI's shape drawing capabilities, allowing users to escape drawing operations. Furthermore, the user addressed critical issues within the text annotation parsing process, preventing potential crashes, and fixed duplicates.
modelicaopenmodelicasimulationcompiler
JKRT/elisp
Aug 2016 - May 2026
Contributions:65 pushes, 1 branch, 2 comments in 9 years 10 months
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