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Didier DemangeDD

Didier Demange

Tech Lead Full Stack | AI-first Workflow

€500/day
Bussy-Saint-Georges, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Didier

I've been through the manager, DevOps, and tech lead phases, but I'm still a developer at heart. I code, I share, I learn, and I try not to break production.

After more than 15 years navigating the (not always calm) waters of IT – as a tech lead, application architect, DevOps manager, project founder… – I decided to return to my first love: development. Real lines of code, the kind that crash for good if you forget a curly brace.

🎯 Today, I'm focusing on what I truly enjoy: front-end development with Vue.js / Quasar and Svelte / SvelteKit, two technologies I've used in my recent projects (Envo & Kazelio) and am eager to explore further.

🛠️ My journey has taught me to be:
  • Proactive, without ever forgetting humility.
  • Pragmatic (I learned to do simple before wanting to do perfect).
  • Pedagogical and available (training, mentoring, and sharing are in my DNA).
  • Attentive and solution-oriented (including for those I don't know yet… but will learn quickly 😉).
If you're looking for a developer who loves coding as much as understanding business needs, and who can also tell you when an idea might not be great (with kindness 😄), let's chat!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Bussy-Saint-Georges (up to 10km)

Experience

  • Envo
    Creator & Developer
    January 2025 - Today (1 year and 5 months)
    I am currently providing a mobile and web budgeting application using the envelope method.
    I offer a simple, fun, and detailed application for all those who wish to use this budgeting method but prefer electronic currency to physical (and cumbersome) cash.
    Vue.js Quasar JavaScript Firebase Claude Code
  • Kazelio
    Co-founder
    January 2024 - January 2025 (1 year)
    Creation of kazelio.com, a reference and information sharing platform for professionals in the board game world.
    The goal is to provide a workspace and exchange of privileged information between professional players in this sector, which is gradually structuring itself. Reference data (directory, games, events...), a networking aspect to stay in touch and build relationships, key data and statistics to shape one's business.
    Svelte SvelteKit Supabase TailwindCSS Skeleton
  • EasyVista
    Global DevOps Manager
    February 2022 - October 2023 (1 year and 8 months)
    Noisy-le-Grand, France
    Co-management of the Link team: a DevOps team responsible for tools (CI/CD, documentation...) and methods used by development teams.
    - Team management, individual follow-up, and annual reviews
    - Relations with other teams and the management committee
    - Project management
    - Budget management

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Education

  • First Certificate of English (grade B)
    University of Cambridge
    2005
  • DUT Informatique, Software Engineering specialization
    Université Paris 8 (Montreuil)
    2004
    Réalisé en alternance

Skill set

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