Custom software and core system solutions built around structural reliability, modular data handling, and robust backend logic. Java, Kotlin, and REST APIs.
FilipRoessner
Student Developer · Systems & Backend Engineering Aspirant
Berlin, Germany (CET / CEST)
Projects
Auto-Shieldbreaker and OmniPerf, published for Minecraft 1.21+. Mixin-driven bytecode injection supports client/server tick optimizations and combat interaction mechanics. Fabric API, Java, Bytecode Mixins, and Mojang Mappings.
Custom AutoHotkey scripts for precision input sequences and desktop workflows, paired with self-hosted Raspberry Pi system-monitoring dashboards. Linux and Dashy.
Hands-on software projects at TUMO Berlin, exploring modern coding, system architecture, and new technologies.
Education & experience
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Since 5th grade
MINT profile · Andreas-Gymnasium, Berlin
Long-term enrollment in the Mathematics, Informatics, Natural Sciences, and Technology profile. Currently in the Oberstufe / Abitur track.
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2021–2026
TUMO Berlin
Participant at the Digital Education & Creative Technologies Center, exploring software design, digital workflows, and modern technology applications.
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2025
Diebold Nixdorf · Engineering & IT
Specialized high school internship (Schülerpraktikum) with exposure to enterprise hardware, banking and retail systems software, and infrastructure design.
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December 2026
CERN · Geneva, Switzerland
Physics and science excursion exploring particle physics and large-scale scientific infrastructure at the European Organization for Nuclear Research.
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Expected 2028
Abitur · Andreas-Gymnasium
Spezialleistungskurs Mathematik — Specialized / Advanced Mathematics Track.
Leistungskurs Informatik — Advanced Computer Science Major for Abitur.
Languages
German
Native
English
Advanced · C1–C2. Targeting Cambridge Certification.
French
Intermediate · B1.
Serbian
Conversational / Native Proficiency.
Technical stack
Programming languages
Java — primary backend language; advanced OOP, systems architecture, and low-level bytecode manipulation.
Kotlin — modern JVM-based backend development.
JavaScript, HTML5 & CSS3 — DOM manipulation and responsive web development.
AutoHotkey — precision input automation, desktop macros, and sequence triggering.
Backend & web
Spring Boot, REST APIs, React, and Tailwind CSS.
Modding & game engineering
Minecraft Fabric API (1.21+), Mixins (bytecode injection), Mojang Mappings, and IntelliJ IDEA.
Systems & developer tools
Git, GitHub, Linux, Raspberry Pi, self-hosted Dashy dashboards, and network / REST integration.
Developer network
Tim Seufert (Tim Hong Phuc) ↗Developer / Collaborator
Karl Grehn ↗Developer / Collaborator
Richard Mack ↗Developer / Collaborator