Quentin Lemaire

Front-end developer · Full-stack developer · DevOps · Systems & network admin

React, Next.js, TypeScript, every day. At Xefi, a full rebuild of a leave-management app's interface, sole owner of the front end, through to release. Enough back-end to ship a whole product: Next.js, Prisma and Supabase power my own projects, plus daily API integration paired with the back-end team at Xefi. The full cycle on GitLab: merge-request reviews, automated test pipelines, deployment across three separate environments, containers running on Docker. My own infrastructure, run by hand: a NAS on CasaOS, containerised services, a reverse proxy as the single entry point. Linux every day.

What I can do

Front-end, full-stack, DevOps, systems: the same craft seen from four sides. Pick one and the toolbox rearranges itself around it. The levels are the ones I will stand behind — five dots is daily work, one dot is a first look.

Pick a hat

From daily use to first contact. Two years at Xefi holding a leave-management application end to end — code, tests, pipelines, release — and three personal projects built alone, from the database schema to the deployment.

The core of the job. At Xefi, a full rebuild of the web interface of a leave-management application, on my own: code structure, faithful implementation of the designer's mockups, unit and functional tests on the critical flows, release to production. React, Next.js and TypeScript daily for two years.

Enough back-end to ship a whole product, not just its screen. Budget Template runs on Next.js, Prisma and NextAuth with its data seeders; GeoLearn on Supabase, with its leaderboard and its real-time 1v1 challenges. And at Xefi, daily API integration, paired with the back-end team.

The full cycle on GitLab: merge request reviews, automated test pipelines, deployment across three separate environments — dev, demo, prod. Containerised environments with Docker. It is also half of my applications design and development degree, built around project management and deployment.

My own infrastructure, administered by hand: a NAS running CasaOS, containerised services, a reverse proxy as the single entry point. Linux daily rather than in theory — this is where I knowingly break things, and repair them.

  1. 5Daily driver
  2. 4Advanced
  3. 3Confident
  4. 2Working
  5. 1Basics

My projects

Three that run

Built, deployed, open to anyone. Each one runs online, nothing to install.

Where I come from

The road here

  1. May 2023

    Digital Systems diploma

    Two-year technical degree

    Electronics, networks and systems. The technical groundwork — and the point where code became the ground I wanted to stay on.

  2. August 2023 → May 2025

    Front-end developer, work-study

    Xefi, Lyon — Dailyapps

    Rebuilt a leave-management interface single-handedly, from code structure through to release. Next.js, React, TypeScript. Merge-request reviews, three environments, automated pipeline tests, Docker.

  3. August 2024

    Application design & development programme

    EPSI Lyon

    Studied alongside the placement. Secure multi-layer design, project management and DevOps deployment.

  4. October 2025 → May 2026

    Six months in Australia

    Australia

    Uber Eats courier, then a construction site. English every day and a lot of adapting. Back with B2.

  5. Since May 2026

    Looking for a role

    France

Shall we talk?

Available

Available right now, and glad to talk through a professional project.