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Julien BarbierJB

Julien Barbier

Backend & Cloud AWS Developer

€400/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Thalès
    Integration, Verification, Validation, and Qualification Engineer
    DEFENSE AND MILITARY
    October 2023 - December 2025 (2 years and 2 months)
    Gennevilliers, France
    Within the Defense teams at Thales, I was responsible for IVVQ on complex tactical radiocommunication systems.

    Verification & Validation: Drafting and execution of test plans to ensure the reliability of transmissions in critical conditions.

    Automation: Development of test scripts to optimize qualification cycles.

    Technical Environment: Python, Wireshark, Jira, Linux environments.
  • NEXA forward
    Fullstack Developer (Angular / NestJS) & Data Visualization
    January 2021 - January 2023 (2 years)
    Paris, France
    At an AI-specialized startup, I designed and optimized complex data visualization tools for end-users.

    Fullstack Development: Conception of responsive interfaces with Angular and development of robust APIs with NestJS.

    Data Visualization: Creation of interactive dashboards (graphs/charts) for displaying data from AI models.

    Performance & Big Data: Optimization of complex SQL queries on massive data volumes (BigData) to reduce latency.

    Cloud & DevOps: Deployment and management of resources in an AWS environment.

    Environment: Agile/Scrum, Git, TypeScript, PostgreSQL.
  • Ezus (Start-up événementielle)
    Full Stack Developer (React / Serverless)
    January 2021 - June 2021 (5 months)
    Paris, France
    During this 5-month internship, I participated in the complete development of a business web application within a dynamic startup.

    Frontend: Development of modern and responsive user interfaces with React.

    Backend & Cloud: Implementation of a Serverless architecture on AWS with a MySQL database.

    Software Quality: Implementation of automated functional tests with Cypress to ensure code robustness.

    Methodology: Work in a startup environment with rapid delivery cycles.

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Education

  • Expert in Information Technology
    Epitech
    2023
    Spécialité IA/BIG DATA

Certifications

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