The DeveloperPortrait
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I'm a programmer dedicated to delivering quality software by use of tooling and testing capabilities.

"For every problem, there's a solution. If there are none... create one."

© 2026 Matthias Seys

PROTOENGINE
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GAMEBOY TETRIS SYSTEM
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FILE EXPLORER
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Parallelium
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SKYMACHINE
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TIME TO DESTROY
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THE SPECTRUM RETREAT
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PSVITA 2D CORE
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SOL2 IMGUI BINDINGS
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PROTOTEK
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MAD MAX ROBOT
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SOFTWARE & APPLICATIONS

Visual Studio
Visual Studio Code
Bootstrap Studio
Github (Desktop)
Postman
Linear
Notion
Jira
Azure DevOps
Photoshop
Blender
Unity
Unreal Engine
Substance Painter

LANGUAGES & CORE

C# / .NET
C++
SQL
JSON
HTML5
CSS3
JavaScript
TypeScript
Java

FRAMEWORKS & ARCHITECTURE

Playwright
Appium
WPF
WinForms
Dear ImGui
RabbitMQ
SDL
Bootstrap
JavaFX
Box2D
DirectX
PhysX

CAREER TIMELINE & EVOLUTION

202120222023202420252026
Handheld Companion Open Source Contributor
OPEN SOURCE
Contributor
Contributing / Available for questions
  • Architected and executed WPF MVVM refactoring to improve maintainability and application architecture.
  • Implemented low-level C++ integrations and features tailored for Lenovo handheld systems.
  • Collaborated with the open-source community through pull requests and code reviews.
C#WPFMVVMC++Open Source
View on GitHub
GeoDynamics NV Jan 2023 — Mar 2026 (3 yrs 3 mos)
Platform Engineer
6 mos
SDET
1 yr 6 mos
.NET Software Engineer
1 yr 5 mos
PLATFORM ENGINEER_
  • Led legacy stack modernization from .NET 4.7.2 to .NET 8, focusing on performance, modern architecture, and CI/CD security hardening.
  • Built a custom WPF/Azure automation tool for build agent provisioning, significantly reducing manual DevOps overhead.
  • Acted as cross-stack troubleshooter for critical production issues across .NET, React Native, and Vue.
SDET_
  • Architected a modular, high-concurrency .NET test framework from scratch (Custom API testing, Playwright, Appium, SpreadsheetGear) running 32+ parallel threads with AsyncLocal data isolation.
  • Developed a dynamic post-deployment Health Check tool using AssemblyLoadContext and real-time Slack alerting in CI/CD pipelines.
CORE & .NET ENGINEER_
  • Built scalable backend features adhering to CQRS & DDD principles while leading 3rd-party integrations and refactoring legacy systems.
  • Early adopter of AI-driven developer tooling (Claude Code, Cursor, CodeRabbit) to accelerate code reviews and execution speed.
C#.NET 8CQRS / DDDPlaywrightAppiumWPFAzure DevOpsCI/CD
DECK13 Interactive Sep 2022 — Dec 2022 (4 mos)
Junior Tools Programmer
4 mos
  • Developed in-house tools for a proprietary game engine in C++ and Qt for Atlas Fallen.
C++QtDear ImGuiEngine Tooling
Larian Studios Feb 2021 — May 2022 (1 yr 3 mos)
Junior Tools Programmer (Fulltime)
7 mos
Junior Tools Programmer (Contract)
3 mos
Junior Tools Programmer (Internship)
5 mos
  • Developed workflow automation and custom editor extensions for Baldur's Gate 3.
  • Built internal productivity tools for designers and artists using C++ and C#.
  • Refactored legacy UI tools (e.g., Entity Status Bar), migrating from WinForms + Managed C++ to WPF + C#.
  • Redesigned the World Outliner to improve overall performance, UI/UX, and feature set.
  • Engineered new engine features, including a World Bookmarks system and folder/grouping support for the Terrain Stencil Editor.
C#C++WPFWinFormsManaged C++Engine Tooling

ACADEMIC & CONTINUOUS LEARNING

HowestBachelor in Digital Arts & Entertainment (DAE)
Cum LaudeSep 2018 — Jun 2021

A deep dive into software engineering for the games industry. Strong focus on C++, engine architecture, graphics programming (DirectX/PhysX), and understanding complex art pipelines.

C++C#DirectXEngine ArchitectureGraphics ProgrammingPhysXSoftware Design
Guldensporencollege De KaaiTSO Informaticabeheer (IT & Computer Science)
GraduatedSep 2016 — Jun 2018

Built a solid foundation in programming, application development, relational databases (SQL), network administration, and server hardware.

C#SQLWeb DevelopmentSystem AdministrationNetworking
Self-Study & ExperimentationContinuous Skill Expansion
OngoingAlways Active

Continuously experimenting with emerging frameworks, modern backend architectures, developer tools, and AI-driven workflows to stay ahead of the curve as a software engineer.

.NET 8CQRS / DDDAI Developer ToolingWPF / MVVMAutomated TestingCI/CD
THE PHOTOGRAPHER_