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Xavier G.XG

Xavier G.

Back-end Developer | Python | Golang | Go

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Xavier

Passionate Backend Developer, I specialize in Golang and Python. With 8 years of personal experience in the Python ecosystem and 3 years in a corporate environment, I work on robust, scalable, and maintainable API projects. My approach is focused on performance, code readability, and best practices (testing, CI/CD, documentation, versioning).

I have worked on data processing systems, complex API integrations (Airbyte, Stripe, etc.), and cloud architectures (AWS). I am also comfortable with Docker, PostgreSQL, Redis, message queues (like RabbitMQ), and command-line workflow automation.

I appreciate well-structured projects, but I also know how to get my hands dirty when it comes to auditing, refactoring, or optimizing an existing codebase. Curious, rigorous, and autonomous, I can provide punctual technical support or work on long-term assignments, alone or in a team.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Bene Bono
    Back-end Developer
    E-COMMERCE
    May 2023 - January 2025 (1 year and 8 months)
    Paris, France
    Golang – Python – AWS – PostgreSQL – Datadog – GitHub CI – Docker
    • Development and maintenance of a REST API for a food e-commerce platform, serving 35,000 users/month
    • Development of monitoring and diagnostics tools
    • Notification system for 15,000 users weekly
    • Design of a data extractor in Python for data analysis
    GO PostgreSQL SQL Python Docker
  • Adentis
    Consultant at OVHcloud
    DIGITAL AND IT
    March 2022 - April 2023 (1 year and 1 month)
    Bordeaux, France
    Golang – Perl – AngularJS – PostgreSQL – MariaDB
    • Development and maintenance of internal software for analyzing and updating IT infrastructure
    • Migration of legacy Perl code to Golang
    • Kanban management and ticket tracking
    • Gathering and translating business requirements into technical specifications for the development team
    GO Python MySQL Angular PostgreSQL
  • Thermofisher Scientific
    Developer Intern
    MECHANICAL ENGINEERING
    April 2021 - August 2021 (4 months)
    Bordeaux, France
    Python – Cython – C++ – Agile SCRUM – Jira
    • Development of an API in Python/Cython to extend Avizo-Amira functionalities, allowing users to automate their scientific workflows
    • Migration of features from C++ to Python
    • Redesign of Avizo-Amira's testing system in Python to replace TCL and enable the implementation of multi-threaded processing.
    C++ Python Agile method Atlassian JIRA Git

Recommendations

Miguel VictoriaMV
Audren Bouëssel Du BourgAB
Yannis FebvreYF
Miguel Victoria and 2 other people have recommended Xavier

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Education

  • Computer Science Master's Degree
    Bordeaux
    2021
    Master Informatique
  • Computer Science Bachelor's Degree Computer Science Specialization
    2019
    Licence informatique Coloration informatique

Certifications

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