Custom-built
A solution shaped to how you actually work, without unnecessary features or constraints imposed by off-the-shelf software.
Available for new projects
I turn your ideasinto digital solutionsthat are fast, useful and built to grow.
Websites, web applications, business platforms and automations for companies, founders and institutions — anywhere in the world.
- Based in French Guiana — working remotely, worldwide
- Custom websites, applications and business tools
Value proposition
More than a website.A real tool for your business.
I design digital solutions built around your workflows, your constraints and your goals. Every interface is built to simplify work, improve the user experience and create real value.
Built to grow
An architecture able to accommodate new features as your business grows.
Fast
Interfaces that are quick, optimized and pleasant to use, on desktop and mobile alike.
Supported
A single point of contact from understanding your needs through deployment and future evolutions.
Services
Solutions builtfor your needs.
Work
Projects built to solvereal problems.
Tourism — French Guiana
Carbet booking platform
A complete platform to search, book and pay for a carbet (traditional Guianese cabin) stay, with real-time availability management for owners.
ReactNode.jsPostgreSQLStripeREST API
E-commerce — French Guiana
Local products marketplace
A marketplace for products delivered across French Guiana: multi-category catalog, cart, secure payment and a seller portal.
Next.jsTypeScriptPostgreSQLStripe Connect
Operations — Internal tool
Debt collection follow-up tool
An internal tool that centralizes due dates, generates follow-up letters and logs every action, replacing shared spreadsheets.
PHPMySQLPDF generationScheduled tasks
SaaS — Documentation & training
Procedius — Interactive procedures
A SaaS product that turns expert know-how into interactive decision trees: visual procedures that guide every employee step by step.
ReactNestJSPostgreSQLReact FlowClaude API
Process
A clear process,from first call to launch.
01
Discovery call
We talk through your business, your goals, your constraints and your users.
02
Scoping
I formalize the scope, features, priorities and the different stages of the project.
03
Design
I prepare the user experience, the solution's architecture and the first mockups.
04
Development
The project is built incrementally, with regular demos and check-ins.
05
Testing & deployment
The solution is tested, secured, optimized, then shipped to production.
06
Support & evolution
I can handle maintenance, support and the development of future features.
Technical expertise
The technologyin service of your project.
Interfaces
Fast, accessible, enjoyable interfaces on every screen.
- React
- Next.js
- JavaScript
- TypeScript
- HTML
- CSS
- Tailwind CSS
- Responsive design
- Accessibility
- Web animations
Server & business logic
Reliable processing that automates your operations and secures your data.
- Node.js
- Express
- PHP
- REST API
- Authentication
- Roles & permissions
- Automated processing
- Document generation
Data
Structured, high-performance databases built to grow with your business.
- MySQL
- PostgreSQL
- Oracle
- SQL Server
- Data modeling
- Migrations
- Query optimization
- Import & export
Infrastructure
A production rollout that's controlled, monitored and backed up.
- Deployment
- Hosting
- Domains
- SSL certificates
- Backups
- Monitoring
- Staging & production environments
Quality
A consistent standard of care, from the first commit to ongoing maintenance.
- Security
- Performance
- SEO
- Responsive design
- Testing
- Documentation
- Maintenance
- Cross-browser compatibility
A coherent system,
not a pile of tools. Every building block is chosen to serve your project, its maintenance and its future.
Proof & results
Real solutions,built to actually be used.
- applications built
- 20+
- applications improved and maintained
- 30+
- of projects supported from design through deployment
- 100%
- types of clients: companies, founders, institutions
- 3
Marc-Henry Malesys — Freelance Developer
About
A developer who understandsthe business as well as the technology.
I build applications starting from a real problem. My goal isn't just to write code, but to create a tool that's clear, reliable and genuinely useful for the people who use it.
I work across the full lifecycle of a project: needs analysis, architecture, development, integration, testing, deployment, documentation and evolution.
My experience across business applications, public platforms, internal tools and founder-led projects lets me approach every project with both a technical and an operational perspective.
- Location
- French Guiana
- Availability
- Available for new projects
- Remote work
- Yes
- Languages
- French, English
- Status
- Freelance
Have an idea, a need,or a process to improve?
Tell me about your project. I'll help you figure out the right solution, the priority features, and the best way to build it.
First conversation, no strings attached.
- Idea validated
- Design complete
- Development ready
- Successfully launched