One Piece TCG Deck Builder
A full-featured web app to build, manage, and battle with One Piece trading card game decks. Supports real-time multiplayer play.
- Deck builder
- Card search & filter
- Multiplayer play
Next.jsPrismaPostgreSQLTypeScript
Available for freelance work
Harold Delacroix
Freelance Developer
I build web applications, business tools, and custom software.
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What I do
Services
From idea to production — I cover the full spectrum of custom software development.
Web Applications
Full-stack web apps built for real workflows — fast, reliable, and tailored to your exact needs.
Business Software
Custom internal tools, ERP modules, dashboards, and automation systems that save your team time.
Websites
Clean, responsive, and performant websites and landing pages that represent your brand professionally.
My Work
Projects
A selection of things I've built — real tools, real use-cases.
Inventory ERP Module
A stock management system built for SMBs. Tracks inventory in real time, provides reporting dashboards, and integrates with existing infrastructure via REST.
- Inventory tracking
- Admin dashboard
- Reporting & export
JavaSpring BootREST APIPostgreSQL
Python Mini Games
A collection of small games built as part of teaching Python programming — Tic-Tac-Toe, Snake, and more, each reinforcing core language concepts.
- Tic-Tac-Toe
- Snake
- Number guessing game
PythonpygameCLI
Toolbox
Tech Stack
The technologies I use to build reliable, modern software.
Backend
- Java
- Python
- Node.js
Frontend
- React
- Next.js
- TypeScript
Database
- PostgreSQL
- Prisma
About
Who I am
I'm Harold Delacroix, a backend-focused freelance developer who builds custom tools and applications for businesses. I specialise in turning complex requirements into clean, maintainable software — whether that's an internal ERP module, a full-stack web application, or a data-driven dashboard.
My background spans Java and Python on the server side, through to React and Next.js on the frontend, with PostgreSQL as my go-to database. I work independently, communicate clearly, and deliver on time.
If you have a problem that needs a software solution, I'd love to hear about it.
5+Years experience
20+Projects delivered
100%Remote-friendly
Get in touch
Contact Me
Have a project in mind? Let's talk. I typically reply within 24 hours.
Or reach out directly
Fast response. I typically reply within 24 hours. For urgent work, mention it in your message.