Custom web applications
Internal tools, platforms, client portals, dashboards: fast, clear React interfaces built for the people who use them every day.
- React
- Next.js
- TypeScript
- Tailwind
Available for new projectsParis area · Remote
François Nguinbu — Freelance Full Stack DeveloperSolid web applications, from first idea to production.
I’m an EPITA-trained engineer. I design, build and ship complete web applications with React, Node.js and PostgreSQL, and I run the servers too.
- Safran
- Internal web apps at Safran Landing Systems since 2023
- 100,000+
- job offers collected and indexed by MonPoste, my own product
- EPITA
- Master’s-level engineering degree, class of 2025
01Services
What I can do for you
One person for the interface, the back end and the hosting. Less coordination, fewer blind spots.
APIs & back end
Robust Node.js APIs, well-modelled PostgreSQL databases and integrations with your tools: payments, email, data sources, third-party services.
- Node.js
- Express
- PostgreSQL
- Prisma
Deployment & infrastructure
Shipping to your own server or the cloud: Docker, reverse proxy, HTTPS, continuous deployment. An app that runs, not just one that compiles.
- Linux
- Docker
- Caddy
- CI/CD
Reliable AI features
Adding an LLM to your product without losing control: structured outputs, schema validation, and human review where it matters.
- Gemini
- JSON Schema
- Prompting
02Process
How I work
- 01
Scoping
A first call to understand your needs, your users and your constraints. You get a clear proposal: scope, timeline, price.
- 02
Frequent releases
Usable versions early and often, on a staging environment. You watch the product take shape and can change course along the way.
- 03
Launch & support
Deployment, documentation and handover. I stay available for maintenance and new features.
03Featured work
MonPoste
monposte.com ↗A job board that tailors your CV to every offer
MonPoste helps students and young graduates in France find jobs, work-study placements and internships. For each offer, it tailors the user’s CV and writes their cover letter.
- Solo
- design, code, data, infrastructure and growth
- ~100,000
- open offers collected straight from employers
- Oct 2026
- launch
- A collector that pulls offers from career sites and recruiting platforms (Workday, SmartRecruiters, Lever, Greenhouse, Taleo…), then cleans, deduplicates and enriches them.
- Guard-railed AI CV tailoring: the model only proposes allowed changes, checked against a schema, and the user accepts or rejects each one.
- Server-rendered offer pages with schema.org structured data, so traffic comes from Google.
- TypeScript end to end, deployed with Docker Compose behind Caddy on a VPS I run myself.
04Background
Experience
Sep 2023 — present
Web Developer · Safran Landing Systems
Vélizy, France
Design and maintenance of two internal web applications. Started with a 5-month internship, now as a freelancer.
- Node.js
- JavaScript
- PostgreSQL
- Python
Mar — Sep 2025
System Administrator · Cebi International
Brunoy, France
Set up a Linux server, installed and configured GLPI for ticket management, and rolled out system improvements.
- Linux
- PHP
- JavaScript
- MariaDB
Jan — Feb 2020
Web Developer (intern) · Institut St-Aspais
Melun, France
Built a ticketing application with another intern, then maintained it after the internship.
- PHP
- HTML
- SQL
Education
2021 — 2025
Master’s-level engineering degree (Diplôme d’ingénieur)
EPITA, Paris · Major in Consulting, specialisation in Blockchain
2019 — 2021
BTS SIO, software development track
Institut St-Aspais · Two-year higher national diploma in IT
05Tools
My everyday stack
- Front end
- TypeScript · React · Next.js · TanStack Query · Tailwind CSS · Vite · Astro
- Back end & data
- Node.js · Express · PostgreSQL · Prisma · MariaDB · Python · PHP
- Infrastructure
- Linux · Docker · Docker Compose · Caddy · Git · CI/CD
- AI & services
- Gemini API · Stripe · Brevo · Playwright · Umami
06About
Code and servers
I’m François. After a two-year IT diploma, I earned my engineering degree at EPITA while working: at Safran Landing Systems, where I’ve built internal applications since 2023, and at Cebi International as a system administrator.
I bring both sides to every project. I don’t just hand over a Git repository; I hand over an application running in production, monitored and maintainable.
In 2026 I launched MonPoste, a product I design and run entirely on my own. I’m based near Paris and work on site in the Île-de-France region or remotely, in English or French.
07Contact
A project, a contract, a role?
Tell me what you need in a few lines. I’ll get back to you within 48 hours.