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Sébastien GalvagnoSG

Sébastien Galvagno

Software Engineer

€350/day
Antibes, FR
15+ years

Average response time: 1 hour

About Sébastien

Senior Software Engineer with 20+ years in low-level systems development across Linux and legacy UNIX environments.
Strong expertise in C, runtime internals, and cross-platform infrastructure tools.
Experienced in debugging, agent deployment, and rewriting legacy runtime systems for modern DevOps.
Adept at collaborating across design and product, with a background in supporting open source tooling and automation workflows.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Sorbonne Université / Institut de la Mer de Villefranche (LOV) Villefranche
    Software Engineer & DevOps
    RESEARCH
    June 2023 - August 2025 (2 years and 2 months)
    Villefranche-sur-Mer, France
    ZooProcess - (Future-Obs & iMagine projects)
    • Designed and developed a web application to manage and process scienti]c images acquired from Jatbed scanners: Zooscan.
    • Integrated AI-based segmentation through the Imagine-wp3 module.
    • Frontend built with React/Next.js, featuring dynamically generated JSON-based forms.
    • Image processing handled in Python using FastAPI, OpenCV, and scikit-image.
    Cytosense - (ANERIS Project)
    The cytosense is a device build by Cytobuoy

    Pipeline from RAW data to Ecotaxa
    • Developed a pipeline for importing Cytosense flow cytometry data into Ecotaxa, the reference tool for plankton classification.
    • Pipeline based on JSON schema to process data.
    • Set up CI/CD to integrate Cyz2JSON tools and package the full pipeline with an installation script.
    Cyz2JSON – a converter for transforming RAW Cytosense data into JSON format.
    • Refactored and merged C# codebases from two separate laboratories.

    • Implemented CI/CD workflows to build the C# application and ensure multi-platform support (Linux, macOS, Windows).

    EcotaxoGuide
    • Handled production deployment of EcotaxoGuide, a taxonomic guide platform.
    • Packaged and deployed the service using Docker containers.
    Server Administration
    • System administration of Dell servers: iDrac, shell scripting, user/group management, Samba, sudoers, NFS, RAID, and LVM.
    • Implemented a watchdog to automatically recover from application crashes.
    • Implemented file system monitoring and developed a Google Chat bot to alert users about their disk usage and remaining space.
    • Installed and managed the Bacula backup system.
    • Managed NGINX configuration and TLS certificate deployment for web services.
    • Zabbix

    Technologies: Python, JSON, C#, CI/CD, Docker, GitHub Action

    JavaScript Typescript Python Docker DevOps
  • Clavis
    Freelance Software Engineer - Freelance Software Engineer - Freelance Software Engineer
    DIGITAL AND IT
    January 2025 - January 2025
    Antibes, France
    Clavis is a translation and localization agency.

    Modification of the proprietary ERP system to handle new analysis file formats provided by clients. WinDev.

    Development of automation tools for cross-checking and verifying the consistency of purchase orders and invoices. Python.

    Website maintenance: www.clavis.fr (WordPress)
    ERP Python Wordpress Automatisation WINDEV
  • Azoth Systems
    Freelance Software Engineer
    MECHANICAL ENGINEERING
    September 2021 - September 2021
    Ollioules, France
    Upgraded backend to newer versions before the old ones became obsolete.
    Node.js and MongoDB.
    Security
    JavaScript Node.js MongoDB Développeur Back-End Upgrade

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Education

  • Artificial Intelligence for Everyone!
    CNAM
    2020
    MOOC Fun
  • From Neurons to Psyche, Introduction to Biological and Artificial Neural Networks.
    MOOC Fun - Université Grenoble Alpes
    2019

Skill set

Categories