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Rajwen FakhfakhRF

Rajwen Fakhfakh

Full Stack Developer - AI / LLM / Agents

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Rajwen

Senior Full-Stack Developer & AI Agents Specialist

I'm Rajwen, a full-stack developer with 5 years of experience. I enjoy building products that truly work, from the user interface to the backend server.

Technically, I'm proficient across the entire stack: React and Next.js for what your users see, Node.js and Python for what powers the machine, with a strong focus on ensuring everything remains robust as the product scales.

What excites me most right now is applying AI to real-world, practical use cases: agents capable of automating repetitive tasks, chatbots that genuinely understand requests, and direct integrations with OpenAI, Claude, or LangGraph within your product. This isn't about flashy demos; it's about delivering tangible daily time savings.

Here's how I can help you concretely:

• Build your web application from scratch or on an existing foundation
• Integrate AI into your product (chatbots, automatic summarization, content generation, intelligent search)
• Create an AI agent connected to your daily tools (CRM, Sheets, databases)
• Refactor existing code, audit it, and make it cleaner and faster
• Deploy to production and automate deployments

I work remotely, respond quickly, and can adapt to anything from a small urgent fix to a project requiring several weeks of commitment.

Let's talk about what you're trying to build.
  • Arabic

    Native or bilingual

  • English

    Fluent

  • French

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 30km), Marseille (up to 30km), Bordeaux (up to 30km)

Experience

  • Data IS
    Full Stack Developer
    REAL ESTATE
    December 2022 - April 2026 (3 years and 4 months)
    Suresnes, France
    Full stack development of the PropTech Data IS platform: AI predictive real estate prospecting for agencies, notaries, financial advisors, and property developers.
    ▸ Frontend Stack: React · Redux · Material UI · MapBox GL (interactive property mapping) · React PDF Renderer (PDF report generation)
    ▸ Backend Stack: ASP.NET MVC · C# · SQL Server · Docker · Outscale · Nginx · Cloudflare DNS
    ▸ Design and development from scratch of DataMorph: intelligent document extraction pipeline in Python / FastAPI combining Google Vision OCR and Mistral LLM to automatically structure sales certificates, fund calls, exclusive mandates, and preliminary sales agreements.
    ▸ Integration of the Brevo API (formerly Sendinblue): implementation of mass email and SMS campaigns for prospecting and client follow-up.
    ▸ Integration of the Koutravo API: automatic estimation of renovation costs to enrich property listings and aid in negotiation.
    ▸ De facto technical lead within a 3-person team · Mentoring and skill development for 1 apprentice and 1 intern.
    Python FastAPI React.js Outscale LLM
  • AEZAN
    Full Stack Developer
    DIGITAL AND IT
    December 2020 - November 2022 (1 year and 11 months)
    Paris, France
    Development of Top Cream: an international B2B platform for market intelligence and content (videos, global conference podcasts) aimed at companies and independent professionals.
    ▸ Design of key features: user management, video player, content curation system, company dashboard, subscription management.
    ▸ Stack: React · Redux · Material UI · .NET Core · C# · SQL Server · Azure DevOps · Azure Blob Storage · Git
    Full Stack Developer (Apprenticeship Contract)
    AEZAN - Data Immo Solutions Mission · Paris Nov. 2020 - Aug. 2021 · 10 months
    ▸ First mission in an IT consulting firm: joined the Data Immo Solutions team as a junior full-stack developer.
    ▸ Development of new features for the predictive real estate prospecting platform.
    ▸ Stack: React · Redux · Material UI · MapBox GL · ASP.NET MVC · C# · SQL Server · Docker
    React.js ASP.NET MVC SQL Server JavaScript Git

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Education

  • Master
    Efficom Paris
    2021

Skill set

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