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Lead Tech MobileParis · React Native & Expo

I lead mobile teams — and ship my own apps to the App Store.

Nine years building for the web and mobile. By day I set the technical direction at FDJ, on Nirio. On the side I design, build, release and price my own React Native apps — solo, end to end.

Dylan Dufay, Lead Tech Mobile
9 yrs
Of professional experience
20+
Projects delivered with a team
3
Solo apps on the App Store
3
Developers mentored

Approach

How I work

01

Structure before code

Understanding the problem and shaping the architecture come before implementation. Boundaries, naming and data flow are decided on purpose, so the system stays readable and predictable as it grows rather than being untangled later.

02

Collaboration is part of the job

Good software comes out of teams that talk to each other. Sharing context early, listening to product, design and QA, and unblocking people quickly weighs as much as the code that gets written.

03

Building together

Shared coding standards, reviews used to spread knowledge rather than to gate it, pair programming on the hard parts, and meetings kept short and useful. What the team learns stays with the team.

Experience

Career

2017 — today

  1. Lead Tech Mobile

    FDJ — Nirio

    February 2025 — today

    Technical lead on mobile for Nirio, across the React Native app, its web side and the services behind it. I set the technical direction, own the architecture decisions and the release path, and keep the codebase something a new developer can pick up.

    React NativeExpoNext.jsNestJSFirebase
  2. Lead dev Full-Stack

    Mentalworks

    February 2021 — January 2025

    Led full-stack projects and the developers on them: architecture reviews, technical direction, and bringing juniors up to autonomy. Ten projects delivered with the team, three developers mentored.

    SymfonyReactNext.js
  3. Full-Stack developer

    Nodevo

    August 2019 — January 2021

    Web projects for large French groups, including TF1 and Arte.

    ReactJSSymfony
  4. Apprenticeship — Full-Stack developer

    Nodevo

    August 2018 — August 2019

    Learned to work inside a team of experienced developers and to ship code meant to be maintained by someone else.

    ReactJSVueJSSymfony
  5. Apprenticeship — Web developer

    Mentalworks

    September 2017 — August 2018

    First years of PHP and Symfony, on client projects.

    SymfonyPHP

A mobile product, or a team to structure?

Write to me directly. I answer faster to a message that says where the project stands and what is blocking than to a ten-page brief.