You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Rédoine SereirRS

Rédoine Sereir

Full-Stack Developer & AI LLM & RAG Engineer

€650/day
Toulouse, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Rédoine

I help companies design, deliver, and evolve B2B web/SaaS products and mobile applications, and integrate AI into them in a useful and secure way.

15+ years of experience, delivery-oriented approach: scoping → architecture → development → production deployment. My foundation: Symfony / API Platform on the backend, Next.js / Vue.js on the frontend, React Native on mobile. Since then, I've added an applied AI layer: LLM integration, RAG systems on business data, agents, and automations.

What I handle

Scoping & Architecture: Lot breakdown, estimation, roadmap, technical trade-offs
Backend / API: REST (GraphQL if relevant), security, performance, integrations
Frontend: Next.js (SSR/SEO, performance) & Vue.js (business apps, dashboards)
Mobile: React Native (iOS/Android), API integration
Industrialization: Docker, CI/CD, monitoring, technical debt reduction
Tech Lead: reviews, mentoring, team standards, quality improvement

Applied AI Component

LLM Integration & Orchestration (OpenAI, Claude, Mistral) into an existing product
RAG Systems: Chatbots and search on your internal data (docs, databases, support)
AI Agents & Automations: n8n workflows, business agents, connection to your tools
Production Deployment & Security: Controlled costs, safeguards, protection against prompt injection

Where I am most useful

→ Integrating AI into an existing SaaS (assistant, RAG, intelligent search) without a complete overhaul
→ Creating / redesigning a B2B SaaS (roles & permissions, back-office, multi-tenant)
→ Automating business processes with n8n + LLM (SMEs and large corporations)
→ Next.js/Vue web platform connected to a Symfony API
→ React Native mobile app (MVP → V1 → scale)
→ Migration / Stabilization (Symfony version upgrade, performance, security, testing)

My real asset: I know how to put AI into production in real products, with the constraints of security, performance, and maintainability.

Fixed price or time & materials. Remote / on-site as needed
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Can work on-site
Toulouse (up to 50km), Paris (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km), Marseille (up to 50km)

Experience

  • Noous
    Backend Developer Symfony 3 and 4
    HUMAN RESOURCES
    May 2019 - Today (7 years and 2 months)
    Toulouse, France
    Development of API Platform, Symfony 3, 4, 5, 6, and 7 in REST API, on several HR tools: Strategic Workforce Planning, training management, recruitment, time management.. available to large accounts such as Airbus, Arianegroup, Pierre Fable, Safran, MBDA, Baxter, Lundbeck, ATR..
    Symfony Symfony 5 API Platform Back-End Development Web Development Agile Methodology Docker Git Symfony 4 DevOps Bash
  • Kantodoo
    Co-Founder & Web Developer
    HUMAN RESOURCES
    September 2018 - Today (7 years and 10 months)
    Lyon, France
    Development of a complete online CV editing platform built with Symfony 4. The project is supported by PEPITE Beelys. Kantodoo's flagship product is the "CV website", fully personalized.
    HTML5 CSS3 PHP MySQL Symfony Symfony 4 Web Project Management Project Management
  • Zapend
    Founder & Web Developer
    E-COMMERCE
    October 2017 - Today (8 years and 9 months)
    Toulouse, France
    Complete development of a fashion & accessories marketplace focused on ergonomics and user experience. This project consists of three distinct platforms: a showcase platform (for customers), a shop management platform, and an admin management platform for the entire system.
    Symfony PHP SQL HTML CSS MySQL Symfony 4

Recommendations

Néo WagnerNW
FU
Néo Wagner and 1 other person have recommended Rédoine

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bac STI2D
    Lycée jolimont, Toulouse
    2017
    Arduino, programmation en C
  • Ecole 42
    Ecole 42
    2019
    La très célèbre aventure de l’école 42 de Xavier Niel m’a permis de perfectionner mon expertise en développement C dans une pédagogie où reigne rigueur & autonomie. - Autonomie - Travail d'équipe - Environnement Mac OS ( avec Term2 Shell ) - Approfondissement de la programmation C

Skill set

Categories