Simon Baars
Freelance Software Engineer at Simon Baars
San Francisco Bay Area United States
Summary
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Rockstar🎓
Top SchoolSimon Baars is a freelance software engineer based in the San Francisco Bay Area with 11 years of experience building production systems and leading teams. He has hands-on expertise across backend Java, frontend TypeScript/Angular, DevOps with Kubernetes/Docker, and test automation—having shipped high-throughput warehouse management flows at Picnic. Simon has also taken technical leadership roles and now applies generative AI in client projects, offering practical knowledge-sharing on that front. An active open-source contributor, he has improved core functionality and test coverage in the well-known JavaParser project, focusing on robust range/position logic. Academically strong (Master’s in Computer Software Engineering with top grades) and comfortable teaching and mentoring, he blends rigorous engineering, quality-first testing, and a quietly consistent cadence of commits that “keeps boredom away.”
11 years of coding experience
5 years of employment as a software developer
BS, Informatica, 8, BS, Informatica, 8 at Hogeschool van Arnhem en NijmegenPre-Master, Informatica, 9, Pre-Master, Informatica, 9 at University of AmsterdamSummer School, Functional Programming and 3COWS (Composability, Comprehensibility and Correctness), A (Excellent), Summer School, Functional Programming and 3COWS (Composability, Comprehensibility and Correctness), A (Excellent) at Eötvös Loránd UniversityHAVO, Science and Engineering, HAVO, Science and Engineering at Pax Christi College
Dutch, English
Stackoverflow
2,049reputation
1.1mreached
47answers
41questions
java
top-5%
Github Skills (19)
unit-testing10
parserator10
parser10
abstract-syntax-tree10
testing10
java10
javas10
code-analysis10
android-ndk6
embedded-database6
xcode6
sql6
excel6
openssl6
android6
Programming languages (15)
Github contributions (5)
javaparser/javaparser
May 2019 - Sep 2019
Java 1-21 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:35 commits, 6 PRs, 22 comments in 4 months
Contributions summary:Simon primarily contributed to the `javaparser/javaparser` repository by adding and modifying methods within the `Range` class, which is central to the project's functionality. Their work involved implementing new methods for checking containment and overlap of ranges and positions, as well as correcting existing methods. Furthermore, they added new test cases and expanded existing ones, demonstrating a focus on code quality and thorough testing of the range-related functionalities.
code-generationjavaparserjavasymbolsolvercode-generatorsyntax-tree
SimonBaars/AdventOfCode-Haskell
Dec 2019 - Dec 2021
Contributions:22 commits, 21 pushes, 1 branch in 1 year 11 months
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