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Experiences

• Student Research and Teaching Assistant

  Hasso Plattner Institute, Software Architecture Group
  2019-08 – present

  As a student research assistant, I maintain and extend the Squeak IDE, support and conduct my own research projects on programming and debugging tools, and have co-authored a textbook on Squeak.

  As a teaching assistant, I supervised teams of undergraduate students in their software architecture and software engineering projects and guided them through agile practices and technical issues.

  Skills: Squeak/Smalltalk · OOP · Academic Writing · Agile Methods

• Software Engineering Intern

  JetBrains
  2025-01 – 2025-05

  At JetBrains, I researched and prototyped approaches for implementing reliable, reusable test runners across multiple programming languages and frameworks (Python, Gradle, Node.js), and integrated the selected solution into the Fleet platform.

  Skills: Java/Kotlin · Python · TypeScript · Gradle

• Student Software Engineering Assistant

  Museums of the Hasso Plattner Foundation
  2020-08 – 2024-07

  At the HPF, I am responsible for maintaining and extending Barberini Analytics, a data mining and analytics platform that provides management and PR teams with business insights from data sources such as social media, review platforms, and the internal customer system.

  Skills: Python · PostgreSQL · Basic Linux Administration

Education

• M.Sc. IT-Systems Engineering

  Hasso Plattner Institute
  2021-04 – 2025-10 Final grade: 1.0 (very good)

  Highlighted courses: Programming Experience · Reverse Engineering · Advanced Programming Tools · Parallel Programming and Heterogeneous Computing · Neurodesign · Global Design Thinking Workshop

  Master thesis: The Semantic Workspace: Augmenting Exploratory Programming with Integrated Generative AI Tools

• B.Sc. IT-Systems Engineering

  Hasso Plattner Institute
  2017-10 – 2021-03
  Final grade: 1.5 (very good)

  Highlighted courses: Project Management · Programming of User Interfaces · Agile Software Development in Large Teams

  Bachelor thesis: Exploring Museum-Related Social Media Posts Using Aspect-Based Sentiment Analysis

Featured Projects

• SemanticSqueak

  2023-08 – 2024-11

  

  Augmenting exploratory programming by integrating conversational and autonomous agents into Squeak. Also implemented the SemanticText framework for generative AI, semantic search, and an OpenAI API client. A scientific paper was presented at the Onward! 2024 conference.

• trace4d

  2023-04 – 2024-02

  

  Research prototype to visualize program behavior through interactive, animated 2.5D object maps using Three.js and D3.js. Presented in a scientific paper at the IVAPP 2024 conference.

• TraceDebugger

  2021-10 – 2024-01

  

  TraceDebugger is a back-in-time debugger for Squeak that aims to improve the navigation experience and immediacy during debugging. Among other things, I proposed a novel state-centric perspective and presented it in our scientific papers at the Programming Experience 2023 workshop and the Onward! 2023 conference.

• Contributions to Squeak

  2019-05 – present

  

  Squeak is an interactive programming system for Smalltalk that is completely implemented in itself and promotes values such as flexibility, liveness, and explorability. I am engaging in the design and implementation of several subsystems, including tools for code browsing, debugging, and version control, the UI system, the exception handling system, and others. Since 2021, I am also a member of the core developers team. Working on a system of this complexity also gives me many opportunities to learn about common trade-offs such as compatibility and modularity, quality and quantity, or products and people.

  Major accomplishments:

  • Reworked the inspector tool family, added watch expressions, and designed a new extension API.
  • Fixed several critical bugs in the debugging infrastructure and the exception handling system.
  • Supported the Squeak 6.0 release, in particular by authoring the release notes.

• Contributions to VBRegex

  2020-03 – present

  

  VBRegex is a regular expression engine for Squeak/Smalltalk that emphasizes an explorable implementation and a clean object-oriented design. I co-maintain the project and have contributed several bug fixes and new features such as named capture groups ((?<name>), lookarounds ((?<=) etc.), match resets (\K), and others. I also built a visualization tool to explore the matcher‘s behavior.

• SimulationStudio

  2021-05 – present

  

  SimulationStudio exploits the flexible nature of Squeak‘s call stack model and provides a framework for fine-grained control of the execution through code simulation. Building on this, SimulationStudio offers a sandbox for isolated execution and multiple tools for the behavior-centric exploration of classes and objects.

• Downstream Repository Mining

  2021-04 – 2022-04

  

  I developed a VS Code extension in TypeScript that collects downstream dependency projects for npm packages from GitHub & Co. and allows package developers to analyze usage samples from their IDE. I presented the tool and the underlying approach in our scientific paper at the ENASE/2022 conference.

• Sonyx

  2021-04 – 2022-05

  

  Sonyx is a research prototype that attempts to support exploratory programming tasks through the use of auditory displays. Programmers can define custom ad-hoc sonifications of individual program elements to inspect and monitor their source code. Our user study indicated that auditory displays can make programmers more satisfied and effective.