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Julien CastrieJC

Julien Castrie

Computer Science Engineer specializing in AI

€778/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Consultant – Executive - I support the design and deployment of strategic IT projects, combining expertise in machine learning, IT architecture, and operational management, in international contexts.
My achievements cover smart buildings, energy, automotive, and retail.
I have business expertise in marketing and supply chain, reinforced by field operational experience.
I have recognized expertise in risk anticipation, team coordination, and adapting communication to each stakeholder.
  • English

    Native or bilingual

  • Spanish

    Conversational

  • Dutch

    Basic

  • Swedish

    Basic

  • Portuguese

    Basic

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • AGL
    POC Microsoft Azure IoT Hub (Development & Architecture)
    LOGISTICS AND SUPPLY CHAIN
    October 2025 - January 2026 (3 months)
    Puteaux, France
    o Context: POC Azure IoT Hub, carried out in vibe coding, to centralize and manage AGL's IoT flows
    o Technical Environment: Azure IoT Hub, Azure Storage Account, Azure Functions, Azure Event Grid, Azure Stream Analytics, Power BI, VS Code, C#

    Results:
    Þ Design and documentation of a POC integrating vehicle tracking flows
    Þ Data standardization and alerts (geofencing, signal loss)
    Azure IoT Hub Azure Storage Azure Functions Azure Event Grid Azure Stream Analytics
  • GIE AXA
    Smart Building & Workplace Solution Architect
    BANKING AND INSURANCE
    September 2022 - July 2025 (2 years and 10 months)
    Paris, France
    o IT/OT Architecture Manager: renovation of AXA's global headquarters (3 buildings, 20K sqm, 1.4K visitors/day)
    o OT Network Design/Deployment: video surveillance (CCTV), access control, PSIM, and BMS
    o IT Network Design: corporate Wi-Fi, meeting rooms, IWMS, building mobile app, and audiovisual network
    o RFP defense jury member
    o Technical Environment: AD DS, PKI, EAP-TLS, VMware, HyperV, Capsule OS, Veeam Backup, Cisco Switches (NAC), Palo Alto Firewalls, Evolynx, Milestone, EcoStruxure, Modbus

    Results:
    Þ Design phase: requirements gathering (functional and cybersecurity), and enterprise architecture documentation at the network level for all site applications
    Þ Implementation phase: supervision of about ten service providers in the implementation of OT applications on segmented networks according to cybersecurity requirements
    Windows Server / Active Directory PKI Routing & Switching Firewall IT Architecture
  • SOLOMCO
    Machine Learning Engineer (Engineering Thesis)
    SOFTWARE PUBLISHING
    May 2023 - May 2025 (2 years)
    Neuilly-sur-Seine, France
    o Development of a sales forecasting model (15 days) integrating weather data and time series by item and location
    o Technical Environment: PyTorch, Pandas, Scikit-Learn, Matplotlib

    Results:
    Þ Cleaning and consolidation of time series data for a supervised learning dataset
    Þ Autoencoder model with attention mechanism inspired by NLP
    Pytorch Pandas Scikit-learn Matplotlib Machine learning

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Education

  • Computer Science Engineering Degree specializing in
    CNAM
    2025
    Diplôme d'Ingénieur Informatique Spécialisé en
  • Certificate in Production and Inventory Management
    APICS
    2016
    Certificate in Production and Inventory Management

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