This Portfolio
The site you are currently on. Built with Next.js, React, and TypeScript, an interactive terminal in the About section, and an animated attack chain visualisation in the Cybersecurity section.
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About Me
MSc Information Security · reverse engineering · modding
Yuzuhausagi@terminal: ~/portfolio
Try: help, theme gradientRainbow, colour blue | Current: default
- JavaScript
- Python
- MongoDB
- C#
- TypeScript
- NextJS
- React
- API
- Unity
- HTML
- CSS
- C
- C++
- Java
Experience
Course Instructor
Kristiania University College · Jan 2023 – May 2025- Guided over 100 students in developing basic and advanced programming skills.
- Collaborated with academic staff to provide tailored support in debugging complex code, improving students' learning outcomes.
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Developer (Bachelor Project), Customs
Tollvesenet · Jan 2024 – May 2024- Led the development of a web application for managing import/export requests in compliance with Norwegian customs regulations.
- Implemented AI driven solutions to automate product classification, optimise processing times, and reduce manual workload.
- Coordinated with cross-functional teams to adapt the application to security, usability, and compliance standards.
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Technical Support Specialist
Geenie Unity AS · 2022 – Feb 2024- Identified and resolved recurring security vulnerabilities and frontend performance issues, reducing customer reported tickets by an estimated 20%.
- Produced internal user documentation that standardised support processes and reduced repeat escalations.
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Education
Master's in Computer Science: Information Security
University of Oslo- Specialising in information security.
- Thesis research in cybersecurity: Code Obfuscation: A Comprehensive Analysis of Modern Techniques, Hybrid Approaches, and Reverse Engineering Countermeasures.
Bachelor's in Computer Science: Artificial Intelligence
Kristiania University College- Bachelor project at the Norwegian Customs Authority: built an AI driven semantic search system that reduced goods misclassification errors by 85%.
Cybersecurity
- Empirical study of modern obfuscation techniques and how well they hold up against current reverse engineering tools.
- Implemented and analysed a controlled corpus of C++ programs (Hello World, calculator, bubble sort, grade checker, login validator, student record) compiled with
g++ -O0to preserve transformations. - Techniques evaluated individually and as hybrids: lexical renaming, XOR string encryption, Unicode renaming, dead code insertion, opaque predicates, control flow flattening, and variable splitting.
- Measured each technique on three axes: complexity, resilience against Ghidra static analysis, and runtime performance overhead.
- Key finding: no single technique provides meaningful protection on its own, hybrid layering is necessary to defeat modern decompilers.
- Performed static and dynamic analysis of a malware sample in an isolated VM environment.
- Used IDA and Ghidra for disassembly and reverse engineering of malicious executables.
- Monitored runtime behaviour with Process Explorer and Process Monitor.
- Tracked registry modifications before and after execution using Regshot and Regedit.
- Course covered software vulnerabilities, cryptography, Linux and Windows security, reverse engineering, and advanced exploitation techniques.
Patterns inspired by Maldev Academy
- OSINT and information gathering: technical and network reconnaissance, port scanning.
- Web hacking: XSS, CSRF, session attacks, SQLi, XPath injection, LFI, SSTI, and Burp Suite.
- Binary exploitation: stack buffer overflow, ROP chains, Ret2Libc, heap exploitation, and Metasploit.
- Social engineering, software fuzzing, cryptography, and hash cracking.
- Internal network attacks: ARP/DNS poisoning, man-in-the-middle, and wireless hacking.
- Memory inspection and live process analysis with Cheat Engine: pointer scanning, structure dissection, and conditional breakpoints.
- Static reverse engineering and dynamic debugging of native binaries with x64dbg.
- Class layout reconstruction and RTTI analysis with ReClass.
- Working knowledge of the Windows API for process and memory operations:
OpenProcess,ReadProcessMemory,WriteProcessMemory,VirtualAllocEx, and module enumeration. - Implementing internal and external tooling in C and C++.
Projects
AI Integration Customs
A web app for the Norwegian Customs Authority that handles import and export requests against current regulations. It classifies goods, returns their category and toll ID, and suggests likely classifications in ambiguous cases. Built with a Python backend, a React/TypeScript frontend, and an AI driven semantic search layer.
PythonAPIReactTypeScript
RapidCard
A language learning web app with a Python and FastAPI backend, MongoDB storage, and an HTML/CSS/JavaScript frontend. Implements spaced-repetition flows, end-to-end Cypress tests, and continuously evolving learning modules.
MongoDBPythonAPIHTMLCSS
Custom Mods — Rust (Game)
C# mods for the online game Rust, deployed to a server community of 50+ users. Improvements span server security features and gameplay mechanics, iterated on directly from community feedback.
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Discord Server Management Bot
A JavaScript Discord bot for a 500+ member server. Features include a Ban Detector that logs IPs and flags banned accounts, a Discord Logger that tracks logins, logouts and edits, user management commands (mute, kick, message templates), and an Embed Creator for automated embed deployment.
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Reddit Moderation Bot
A JavaScript bot shipped end-to-end in a 2-week sprint. It automatically retrieves and surfaces top posts from a target subreddit, opens dedicated discussion threads, and exposes a refresh command for recent activity.
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