Professional experience · Market data
Production
June 2025 — present
MicrocapsEngine
MicrocapsEngine processes realtime and historical microcap market data for research,
screening, charting, and trading workflows. I own most concerns outside the trading logic:
application architecture, frontend, APIs, infrastructure, engineering standards,
deployment, and operational tooling.
I work alongside a trading-domain engineer who owns domain calculations and collaborates
with the product owner on market requirements. My role is to turn those requirements into
a coherent, testable, and operable application platform.
- Next.js
- React
- TypeScript
- .NET
- PostgreSQL
- Supabase
- WebSocket
- Docker
Operations portal · Flagship side project
Operating
2026 — present
OrionHex Control Plane
An owner-only control plane for a multi-host homelab. It combines reviewed service
inventory, container state, metrics, durable events, guarded operations, remote-access
surfaces, and an automatically derived infrastructure map.
The difficult part is trust: the interface distinguishes declared, observed, derived,
and unknown facts. Mutations are typed and allowlisted instead of exposing generic Docker,
HTTP, PromQL, RCON, or shell access.
- React
- TypeScript
- ASP.NET Core
- PostgreSQL
- Prometheus
- Docker
Infrastructure · Self-hosting
Maintained
2025 — present
OrionHex Homelab
A real multi-host environment spanning local compute, cloud ingress, private access,
storage, monitoring, media, development services, and game infrastructure. I maintain
deployment definitions, health checks, backups, recovery procedures, and incident records.
Its value is operational: outages have exposed Docker networking, mount ordering,
storage contention, and alert-delivery failures that a demo environment would never reveal.
- Linux
- Docker Compose
- Networking
- Prometheus
- PostgreSQL
- Recovery
Team project · RITR competition
Completed
October 2024 — May 2025
PetFinder
A collaborative application for reporting lost animals, recording sightings, and helping
owners search by location. The product combined user and pet profiles, nearby reports,
favorites, notifications, and map-based sighting workflows.
I contributed across the frontend and backend, including map behavior, search, pet tracking,
responsive layouts, API workflows, and containerized development. The project is useful
evidence of sustained work in a multi-contributor codebase rather than a solo demo.
- UU5 / uuApp
- Node.js
- MongoDB
- Leaflet
- Docker
- Team development
Client website · Full-stack delivery
Delivered
2024 — 2025
Proxiron
A responsive portfolio website delivered for a Belgian IT solutions and consulting company.
I implemented the Angular frontend, custom navigation, scroll and terminal animations,
responsive behavior, deployment packaging, and the contact workflow.
The contact backend used Node.js, Express, and Microsoft Graph to deliver messages. The
company no longer operates the website, so it is presented here as archived client work—not
as a currently live product.
- Angular
- TypeScript
- Node.js
- Express
- Microsoft Graph
- Docker
Requested utility · Realtime event tool
Delivered
August — September 2024
Buzzer
A browser-based realtime buzzer and scorekeeping tool built at a friend's request.
Participants join by name, buzz into an ordered queue, receive points, and send messages;
a dedicated administrator view manages the queue, scores, and event state.
The server broadcasts state changes over WebSockets and serves the complete interface from
one lightweight container. It was intentionally scoped for a small trusted event rather
than designed as a public multi-tenant service.
- Node.js
- Express
- WebSocket
- JavaScript
- HTML / CSS
- Docker
Personal portfolio · Handmade frontend
Live
2026 — present
mat-ko.com
This portfolio is itself a custom frontend project rather than a template. Its six-section
presentation uses a handmade fullscreen scroll controller, staged reveals, an animated
project timeline, responsive navigation, and orbiting portrait elements.
The timeline keeps its active project centered with logarithmic spacing, while internal
overflow and scroll-edge detection prevent section navigation from stealing content scroll.
An nginx container proxies the contact form to a small Node.js API.
- HTML
- CSS
- JavaScript
- nginx
- Node.js
- Docker Compose
Game infrastructure · Operated service
Operating
February 2026 — present
OrionHex Modded Minecraft
A self-hosted Forge 1.20.1 multiplayer server operated as part of OrionHex. I manage the
containerized runtime, modpack lifecycle, whitelist, public routing, health visibility,
logs, and recovery procedures rather than treating it as a one-time server setup.
Automated world backups use guarded RCON workflows, and the surrounding infrastructure
records runtime failures and supports recovery after host, storage, or container outages.
- Minecraft Forge
- Docker
- Linux
- RCON
- Bash
- Backup automation
Constraint-driven UI · CSS-only interaction
Prototype
February 2024
SOC KBS Toolset
An early security-operations dashboard prototype implemented without JavaScript. Radio
inputs and CSS :checked selectors switch production/test views, select tool
options, reveal detail panels, and open embedded map and threat-monitoring surfaces.
The code demonstrates how meaningful interface state can be expressed under a no-script
constraint. It remains an archived fixed-width prototype, not a production application.
- HTML
- CSS
- CSS selectors
- Radio-state UI
- Embedded tools
- No JavaScript
Requested utility · Eurovision 2024
Used
May 2024
Eurovision Ranking
A small ranking utility requested by a friend and successfully used by him and another
participant during Eurovision 2024. It presents all 26 finalists and lets the user assign
each one a unique finishing position from 1 to 26.
Client-side validation rejects out-of-range and duplicate positions, completed choices are
locked, and cookie persistence preserves the ranking across reloads. Its value is a narrow
workflow that solved the real request without unnecessary infrastructure.
- HTML
- CSS
- JavaScript
- Validation
- Cookies
- Delivered utility
Workstation engineering · Automation
Active
2025 — present
hyprarch_config
A reproducible Arch Linux and Hyprland environment managed through GNU Stow, Bash,
and systemd. It covers installation, dependency-ordered startup, package inventory,
health checks, guarded maintenance, Secure Boot, backup, and remote-access workflows.
The repository treats a workstation as an operable system rather than a collection of
dotfiles, with repeatable provisioning and explicit recovery paths.
- Arch Linux
- Bash
- systemd
- GNU Stow
- Secure Boot
- Hyprland
Desktop application · Device mapping
Active
December 2025 — present
JoyBind
A focused desktop application for mapping game controls to physical devices and exporting
the result into a game. The working scope targets Star Citizen and VKB joysticks, with a
desktop interface, structured device data, API, and persistent mappings.
The project concentrates on a narrow, concrete workflow instead of trying to support every
game and controller from the start.
- React
- Electron
- Node.js
- PostgreSQL
- Structured data
