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Savannah H.

Fullstack Engineer - LLM Systems and conversational agents

    TJM
    À partir de 460 €/jour
    Localisation
    Strasbourg · Full remote
    Langues
    Français, Anglais, Espagnol

    Disponible immédiatement · 5 ans d'expérience

    Full-stack software engineer specialized in designing and shipping production AI systems: LLM applications (OpenAI, Anthropic Claude), agentic workflows with tool/function calling, and production conversational AI agents. Autonomous across the full development cycle: architecture, front and back end, third-party API integration, relational databases with security policies (RLS), CI/CD, and production deployment. Experienced in real-world debugging (APIs, WebSocket, database permissions) and writing clear technical documentation for both developer and non-technical audiences. Comfortable working with both engineering teams and business stakeholders, and quick to adapt to an existing stack or build a new one.

    Compétences

    • Azure3/5
    • CI/CD3/5
    • Docker4/5
    • Kubernetes3/5
    • LLM4/5
    • Next.js4/5
    • Node.js4/5
    • PostgreSQL4/5
    • Python3/5
    • REST API4/5
    • Supabase4/5
    • TypeScript4/5

    Spécialités

      Expériences

      1. Founder & Full-Stack software engineer

        2026 — Present

        • Designed and built a SaaS platform for AI conversational agents (AI- powered call center) using Next.js, Supabase, Twilio, OpenAI, and ElevenLabs. • Implemented agentic workflows with tool/function calling and LLM orchestration, including Row-Level Security (RLS) policies on Supabase for reliable production operation. • Diagnosed and resolved complex production issues: WebSocket routing, Twilio account restrictions, and data security. • Designed a 35-table relational database schema and built integration workflows (CSV import, campaign management, AI call pipeline).

        • Next.js
        • Supabase
        • ElevenLabs
        • WebSocket
        • LLM

      2. Full-Stack software engineer | Technical Lead

        2024 — 2026

        • Developed and maintained a SaaS platform using Node.js, React and PostgreSQL. • Introduced a Clean Architecture / MVVM structure to improve code maintainability, scalability and separation of concerns, supporting a mobile application for investment. • Designed and managed CI/CD pipelines with Vercel to automate testing, builds and production deployments. • Contributed to technical architecture, development standards and engineering best practices across the platform.

        • Node.js
        • React
        • PostgreSQL
        • CI/CD

      3. Mobile & IoT Application Developer

        2023 — 2024

        • Built a mobile application with Flutter while learning IoT principles. • Applied MVVM and Clean Architecture best practices. • Contributed to the design and implementation of the database infrastructure.

        • Flutter

      4. Web Developer

        2022 — 2023

        • Developed and maintained Wordpress websites, including custom features and integrations using PHP, JavaScript and WooCommerce. • Designed and developed responsive web applications using React.js from UI implementation to API integration • Developed cross-platform mobile applications using Flutter and React Native. • Created UI/UX mockups and prototypes with Figma, translating design cencepts into responsive and functional interfaces.

        • WordPress
        • PHP
        • JavaScript
        • WooCommerce
        • React
        • Flutter
        • React Native
        • Figma