Jan Wittler
Senior Consultant at Concept Reply GmbH
Munich, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolJan Wittler is a Senior Consultant based in Munich with 8 years of software engineering experience spanning industrial R&D, consultancy, and mobile app development. He holds a distinguished MSc from KIT and contributed as a doctoral researcher to multi-view modelling and the Vitruvius framework, blending formal research with practical tooling for cyber-physical systems. Jan is a hands-on back-end developer and open-source contributor to JPlag, where he improved tokenization and matching algorithms for a widely used code plagiarism detector. He moved from building commercial iOS apps to consultancy, demonstrating versatility across mobile, research prototypes, and scalable backend systems. Known for refactoring complex algorithms into maintainable components, he brings a pragmatic, research-informed approach to solving engineering and architectural challenges.
8 years of coding experience
8 years of employment as a software developer
UPC Universitat Politècnica de CatalunyaBachelor of Science - BS, Computer Science, 1.4, Bachelor of Science - BS, Computer Science, 1.4 at Technische Universität HamburgMaster of Science - MS, Computer Science, with distinction (1.1), Master of Science - MS, Computer Science, with distinction (1.1) at Karlsruher Institut für Technologie (KIT)
English, Spanish, German, French
Github Skills (6)
algorithm10
data-structures10
javas10
algorithms10
data-structure10
java10
Programming languages (7)
Github contributions (5)
jplag/JPlag
Jul 2022 - Nov 2022
State-of-the-Art Source Code Plagiarism & Collusion Detection
Role in this project:
Back-end Developer
Back-end DeveloperContributions:135 reviews, 155 commits, 17 PRs in 3 months
Contributions summary:Jan made several changes to the internal workings of the plagiarism detection algorithm, specifically focusing on the tokenization process and matching algorithms. Contributions include making the token length immutable and refactoring hash functionality. The user refactored the greedy string tiling algorithm to work with a list of tokens and implemented code suggestions.
collusion-detectionplagiarism-detectiontoken-basedplagiarism-checktoken
JanWittler/Vitruv
Jan 2021 - Jun 2021
View-based development and model consistency framework
Contributions:25 pushes, 1 branch, 1 tag in 4 months
consistencyframework
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