Freelancer profile translated to English.

Description

Hello, I'm Nicolas, a Senior Web & Mobile developer (12 years).

I help teams deliver quickly and cleanly: performant & SEO-friendly Next.js/React frontends, React Native apps ready for the stores, and robust Node/TypeScript backends. I implement quality (e2e tests, CI/CD) and automate what saves time (n8n, AI when relevant).

What I bring

Web Front-end: Next.js (SSR/ISR), design system, i18n, accessibility, performance (Lighthouse).

Mobile: React Native + Expo/EAS, navigation, push, deep linking, offline-first (SQLite), App Store/Play Store submission, OTA updates.

Back/API: Node/TS, REST & GraphQL, Prisma, PostgreSQL/MongoDB, WebSockets/streaming.

Quality & Ops: Playwright, GitHub Actions, Docker/Nginx, monitoring (Sentry).

Automation: n8n, LLM/agent integration to reduce repetitive tasks.

Quick Offers (packages)

Next.js Audit: performance/SEO + prioritized action plan.

RN Industrialization: EAS/CI/CD, OTA, store submissions & handover.

CI/CD + e2e Tests: pipelines, PR previews, Playwright.

Project Types

App Router & i18n Migration, RN mobile MVP, front-end performance redesign, Node/Prisma APIs, n8n automations, IoT POC (ESP32/MQTT).

Key Stack

Next.js, React, React Native/Expo, TypeScript, Node.js, Prisma, PostgreSQL, MongoDB, GraphQL, Tailwind, Playwright, Docker, GitHub Actions.

Based in Douai/Lille – remote or on-site.

Daily Rate: €700 HT (package deals possible).

I respond quickly and offer a 20-minute call to scope your needs.

Industry field of expertise

Languages

French
Native or bilingual

Workplace preferences

Can work on-site

Douai (up to 50km), Lille (up to 50km), Paris (up to 50km)

Seckiot
Front-end Developer
PUBLIC SAFETY
September 2021 - Today (4 years and 9 months)
Paris, France
I am involved in the development of a solution that allows mapping company networks and alerting the user to potential threats.
React.js
Planete-oui
Front-end Developer
ENERGY AND UTILITIES
May 2020 - Today (6 years and 1 month)
Lille, France
Development of a platform for managing Audits at Ener Pacte (a Lyon-based company).

Company description with the link below:

https://www.youtube.com/watch?v=Seo9-vr-CCw&feature=emb_logo
React.js
decathlon
Fullstack Developer
SPORTS
March 2018 - March 2019 (1 year and 1 month)
Lille, France
Development of a platform that lists sports practice locations.

https://maps.decathlon.fr/sports-map
Node.js PostgreSQL