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Christos GaidosCG

Christos Gaidos

Senior PHP Developer

€550/day
Paris 1er Arrondissement, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Christos

I have been working in web programming for over 20 years as a developer and tech lead.
I specialize in the implementation of AI tools.
I can implement conversational chatbots, AI agents (automation), content generation (images, videos) or an AI assistant for sales and administrative management (quotes, emails, invoices).
  • English

    Native or bilingual

  • French

    Native or bilingual

  • Spanish

    Fluent

  • Greek

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • EPTAMEL
    AI & Automation Developer
    TECH
    September 2025 - Today (9 months)
    Versailles, France
    Design and development of conversational chatbots
    Integration of LLM APIs (OpenAI GPT, Anthropic Claude)

    Client: Romain Coach (coaching website) – coaching chatbot, FAQ and appointment booking
    Automation of workflows with AI agents (N8N)

    Integration of third-party services: CRM, APIs, databases, business tools, Gmail

    Client: Baldonado – orchestration of complex workflows and multi-service automation
    AI Image and Video Generation

    Tools: Leonardo, Flux Context, VEO (videos)

    Client: Shopéo (Shopify store) – automated product visuals and marketing content
    Technical Environment: N8N – OpenAI GPT – Anthropic Claude – Leonardo – Flux Context – VEO – Python – Node.js – PostgreSQL
    N8N Automation OpenAI Claude Code veo 3 Leonardo
  • CARMF
    Lead PHP Developer
    January 2025 - August 2025 (7 months)
    Modernization of IS applications
    Taking over a stalled project and delivering on time

    Leading a team of 10 developers
    Coordination of stakeholders: business, product management, and developers
    Technical monitoring of migration and new developments
    Technical Environment: PHP 8 – CakePHP – PostgreSQL – jQuery
    PHP cakePHP PostgreSQL jQuery
  • ASN: Autorité de Sûreté Nucléaire
    Application Manager
    January 2024 - December 2024 (11 months)
    • In charge of the application portfolio, primarily PHP/Symfony
    • Management of processes, quality, and scalability of PHP/Symfony applications
    • Coordination of stakeholders for all internal and external applications
    • Monitoring of PHP developments with external teams
    • Software architecture choices for new projects
    • Optimization and consistency of the information system
    • Re-modeling of all organizational data
    • Analysis and estimation of existing system evolutions
    Technical Environment: PHP 8 – Symfony 5/6.4 – PostgreSQL – ReactJs – Elastic Search
    PHP Symfony PostgreSQL React.js

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Education

  • Master's degree in Mathematics Applied to Social Sciences
    Université PARIS VII
    1987

Certifications

  • Professional Powerbuilder Certification
    Sybase
    1997

Skill set

Categories