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Freelance
🌍 Senior Frontend Developer React.js / Next.js
Location:
PARIS
Type:
Hybrid
Salary:
TJM:
600
€
Machine Learning
AI
GENAI
Python

🚀 Context
A company in the travel / e-commerce sector launches the complete creation of its new B2B and B2C platform from scratch.
Objective: build a fluid, high-performance and responsive experience, thought web performance and mobile-first (but without a mobile app).
You'll be joining a small, close-knit team consisting of a CTO, a Product Owner, a back .NET developer and the future React / Next.js front-end developer.
A product-oriented environment, where every decision is made as closely as possible to the user's needs (competitive intelligence, needs analysis, rapid prototyping).
🎯 Role & Missions
- Design and develop the interface for the new web platform (B2C & B2B).
- Work with the PO and CTO to define functional and technical requirements.
- Guarantee the performance, maintainability and quality of front-end code.
- Participate in architecture decisions and technical choices related to UI and UX.
- Actively contribute to the implementation of a high-performance, fluid and responsive web environment.
✅ Profile Wanted
- 7 to 8 years' experience in front-end development.
- Excellent level on React.js and Next.js.
- Good command of Typescript.
- Strong sensitivity to web performance anduser experience issues.
- Interest in e-commerce and scratch-built product environments.
- Taste for working in a small team, with a lot of autonomy and proximity to the product.
🛠️ Stack Technique
- Frontend: React.js / Next.js / Typescript
- Backend: .NET
- Philosophy: project from scratch, strong emphasis on web performance and UX
- Target: responsive web only (no mobile app)
💼 Terms & Conditions
- Location: Paris - 3 days on-site / 2 days remote
- Start-up: mid-November (within 4 to 6 weeks)
- Contract: Freelance / Mission
- Duration: Long assignment
- Average daily rate: 500-600€ / day
🌱 Why this position?
- Building a platform from scratch in a demanding, modern product environment.
- Work on a high-level, performance- and UX-oriented React / Next.js stack.
- Be part of a short, agile team that is very close to the business vision.
- Have a concrete impact on technical decisions and the quality of the final product.
🧪 Recruitment Process
- Interview with the CTO - Visio or on site
- Interview with the Product Owner - Visio or on site
Apply directly to the position of
🌍 Senior Frontend Developer React.js / Next.js
We'll be in touch soon!

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