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Guillaume AllioGA

Guillaume Allio

Project Manager / Backend Developer

€300/day
Marseille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Guillaume

With over 10 years of experience in web development and IT project management, I support companies in the design, development, and optimization of their digital solutions. From creating e-commerce platforms to migrating complex systems, including writing specifications and Agile project management, I master the entire project cycle, from idea to production.


What I offer:

- IT Project Management
- User Experience (UX/UI) Optimization
- Maintenance in Operational Condition (MOC) and ticket management

Why work together?
✔️ Strategic vision & technical expertise
✔️ Autonomy, rigor, and adaptability
✔️ Ability to simplify complex projects and deliver effective solutions

Let's discuss your project and see how I can help you make it a reality!


  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Planet Cards
    Migration Project Manager / Backend Developer
    January 2019 - January 2023 (4 years)
    Configuration and selection of e-commerce modules: Gathering requirements from managers (marketing, IT...), researching and evaluating the most suitable modules, setting up and configuring adjustments.
    Steering Magento 1 → Magento 2 migration: Monitoring deployment, executing tests, managing tickets and bug reports, writing functional and technical specifications.
    Layout and sitemap: Creating a clear and coherent sitemap, aligned with requests from different departments (marketing, retail...).
    Development, testing, and deployment on AWS: Module updates, configuration, unit tests, and continuous integration before production.
    Marketing data management: Writing SQL queries to extract/export data requested by the marketing team, re-importing updated data for mass operations (promotions, targeting...).
    Maternity Module: Designing specifications, developing, and testing a module for accessing maternity photos for creating photo objects, in collaboration with a third-party provider.
    Agile / Scrum Methodologies: Using Product Owner practices (backlog prioritization, sprints, reviews) and tools like Jira, EasyProject for development steering.
  • Kaporal
    Full Stack Developer / Project Manager
    January 2010 - January 2016 (6 years)
    Complete creation of e-commerce tools: No automated solutions existed upon my arrival. I had to design and deploy intranet software covering customer service, management of customer returns, logistics, and in-store delivery.
    Writing specifications: Close collaboration with technical and functional teams (customer service, logistics, accounting, marketing) to precisely define needs and constraints (technical, operational).
    Customer Service & Returns: Developing an intranet connected to customer orders, managing returns via scanning, calculating amounts (products, discounts), generating and automatically sending return forms, accounting integration for refunds.
    Logistics: Implementing an intranet to view the warehouse (shelves, racks), associating barcodes with each location, stock management, order preparation (picking), generating shipping labels, conducting full inventories.
    In-store merchandise reception software: Designing a tool to scan and validate product reception, with information fed back into the ERP.
    Sales Management: Mass updating prices in the database according to marketing strategies, managed via specifications approved by the marketing department.
  • Retroetgeek.com
    Blogger and Videographer
    September 2016 - Today (9 years and 9 months)
    Creation of educational content in electronics, programming, and DIY. Project prototyping, video tutorial and blog post production. Complete management of a dedicated server for website hosting and continuous optimization.

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Education

  • Degree in Software Design, Internet, and Networks
    2008
    Du conception logiciel internet et reseau
  • Techno-Commercial BTS (Higher National Diploma)
    2005
    BTS technico-commercial

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