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Raphaël LéoRL

Raphaël Léo

Web Developer/Analyst

€550/day
1 project
Grenoble, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Raphaël

Senior Full-Stack Developer with over 15 years of experience, offering my skills to support teams or for demanding technical missions. Complete mastery of modern frontend stacks (React, Angular, Vue.js, Next.js) and backend (Node.js, PHP/Symfony, Python), with DevOps expertise (Docker, Kubernetes, CI/CD on GitLab and GitHub Actions) and cloud deployment (AWS, GCP, Azure).

Since early 2024, I have deepened my skills in Artificial Intelligence and automation: integration of LLMs in production (Claude API, OpenAI, Mistral), development of RAG systems (LangChain, ChromaDB/Pinecone vector databases), multi-agent orchestration for workflow automation, and monitoring/evaluation of agents with Langfuse. Experience in deploying self-hosted models (Ollama, vLLM) and architecting scalable AI solutions.

Solid experience in agile environments, rapid integration into existing teams, mastery of collaborative tools (Git, Jira, Slack, Azure DevOps). Capable of intervening across the entire development cycle: architecture design, development, automated testing (Jest, Playwright), and secure deployment.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • leoweb
    Manager
    SOFTWARE PUBLISHING
    January 2024 - Today (2 years and 5 months)
    Clermont-Ferrand, France
    Since January 2024, I have focused my consulting activity on Artificial Intelligence and workflow automation expertise, while maintaining my full-stack web development services.

    Developed AI Expertise:
    - Deployment and integration of LLMs (Large Language Models) in production
    - Development of custom RAG (Retrieval-Augmented Generation) systems
    - Multi-agent orchestration with advanced frameworks (LangChain, LangGraph)
    - Tracking, monitoring, and evaluation of AI agents with Langfuse and observability tools
    - Automation of AI workflows to optimize business processes
    - Implementation of vector databases and embedding systems

    AI/Automation Technical Stack:
    Python, LangChain, Claude API, RAG, ChromaDB

    Services Offered:
    - Strategic consulting in AI and automation
    - Development of SaaS solutions integrating AI
    - Deployment of self-hosted LLMs
    - Full-stack web development (React, Next.js, Node.js)
    - Digital marketing and process optimization

    Flagship Project:Development of PokerLab, a poker training platform using specialized LLMs to generate personalized curricula and offer AI-assisted coaching.
    LLM Langchain ChromaDB LangGraph LangFuse
  • SQI sqi.coop
    Web Development Engineer
    MEDICAL
    January 2018 - November 2023 (5 years and 10 months)
    Meylan, France
    Context:
    Specializing in supporting companies wishing to bring medical devices to market, SQI advises and trains companies to pass the necessary audits for CE and FDA marking, or to obtain various ISO standards required for market access.
    In this context, I had to work with particular rigor and development models such as the V-cycle. I also had to pay particular attention to the writing of documentation, automated tests, and test plans.

    Achievements:
    -IDBioriv (idbioriv.com):Project to optimize blood sample analysis to improve septicemia detection time, in partnership with the ISA laboratory and HCL in Lyon.
    -Corin Group (coringroup.com):Multiple pre- and post-operative applications for hip, knee, and shoulder. These applications aim to display DICOM (3D X-ray) in a 3D view to simulate and prepare surgery.
    -RTFlow (rt-flow.com):Radiotherapy service scheduling management tool.
    -Modjaw (modjaw.com):Dental care optimization tool.
    Symfony Angular docker Linux Microsoft Azure
  • norsys
    Web Development Engineer
    TECH
    September 2014 - December 2018 (4 years and 3 months)
    Région de Grenoble, France
    Mission carried out within a service company, with successive interventions at different end clients. Work on projects with varied technical and business contexts, particularly in the banking, insurance, training, engineering, research, and medical sectors. Demanding environments involving strong constraints in terms of security, reliability, performance, and software quality, with a strong capacity for adaptation to teams, methods, and the specific challenges of each organization.
    Symfony Angular PHP/MySQL Docker Elasticsearch

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Education

  • Higher Technician in Automation and Industrial Computing
    AFPA
    2007
    L'automaticien développe et teste des programmes informatiques industriels, monte et installe matériels, logiciels, applications, crée des outils de supervision, rédige la documentation technique, assiste les opérateurs.

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