◊ Station LD-001 — Besançon · 47.2378° N, 6.0241° E

Léo Deroin, Fullstack developer in Besançon

Does your team need a fullstack developer who can own a Symfony backend as well as a React or Next.js frontend? Two years of apprenticeship shipping production SaaS tools at Confluent Digital, a Master's in web engineering from ESGI: I'm available for a full-time role. 40+ projects shipped — browse the gallery and see what I bring to a team.

Get in touchView projectsDownload CV

◊ 02 — What I bring aboard

What I bring to a development team

Three areas where I'm productive from day one, honed over two years of apprenticeship on products running in production.

Web applications, end to end

The need
A feature or product to build, from the data model all the way to the interface.
What I do
Symfony, Phalcon or Node backend, React / Next.js or Vue frontend, MySQL, Docker deployment — I cover the whole chain.
The outcome
A developer who understands both sides and ships complete features.

Performance and modernisation

The need
Pages that are slow on mobile, code that's hard to evolve, a site that barely shows up on Google.
What I do
I take over the existing code, split what needs splitting and lay a sound base: performance, technical SEO, accessibility.
The outcome
A faster product that ranks better and is easier for the whole team to maintain.

Business tools and SaaS

The need
Teams juggling spreadsheets, copy-paste and repetitive manual tasks.
What I do
Back offices, dashboards, API integrations and automations — the SaaS tools I built for SMBs at Confluent Digital.
The outcome
Less manual entry, fewer errors, more time for the core business.

I'm looking for a full-time fullstack developer role. Browse projects already shipped or write to me — reply within 24-48h.

Discuss a role

◊ 03 — Pilot ID card

The fullstack developer at the controls

Léo Deroin

Léo Deroin

Développeur Fullstack

📡 Besançon, France

Download CV

Fullstack developer based in Besançon, hooked on interfaces that step outside the lines — the kind that make you stay on a page because something is actually happening. The 3D demos in the Lab are my playground.

I work mostly on the PHP/Symfony and JS/TS stacks (React, Next.js, Vue 3), from solid backends to polished frontend experiences. I like projects with a real reason to exist, not just a spec. My full toolbox lives on the setup page.

Two years of apprenticeship at Confluent Digital building SaaS tools for SMBs, a Master's in web engineering at ESGI completed in September 2026 — and still too much time spent animating shaders. I'm now looking for a full-time role: what I'm busy with is on the Now page, and what I learn ends up on the blog.

0

Years of experience

0+

Projects shipped

0

Technologies mastered

◊ 04 — Skills constellation

Fullstack skills: a star map

Each star = a technology. Lines = how they fit together. By default only my daily drivers are shown; "All technologies" reveals the rest. To see them in action, head to the projects.

ReactNext.jsVue 3TailwindReact NativePHPSymfonyNode.jsMySQLPostgreSQLPrismaDockerComposeLinuxNginxGitGitHub

◊ 05 — Orbital trajectory

A developer's journey, step by step

A computer science degree (BUT) in Grenoble, fullstack development apprenticeships, then a Master's in web engineering at ESGI alongside two years at Confluent Digital, both completed in September 2026. The projects built along the way are detailed in the gallery.

  1. ApprenticeshipAug 2024 — Sep 2026

    Fullstack Developer

    Confluent Digital · Lyon

    Fullstack apprenticeship at a digital agency: design and development of business web applications, project management, and teamwork on internal and client SaaS products.

    Next.jsSymfonyMySQLDockerTypeScript
  2. EducationJul 2024 — Sep 2026

    Master's in Web Engineering

    ESGI

    Master's degree on a work-study program, alongside the Confluent Digital apprenticeship. Specialized in modern web architectures.

    Next.jsExpress.js
  3. ApprenticeshipSep 2023 — Jul 2024

    Fullstack Developer

    ELIPCE Solutions · Valence

    Built a multi-sport mobile app (React Native + Expo, PHP backend), maintained the internal Datanalyz platform, shipped corporate website modules (Python, JS, HTML/CSS), wrote technical and functional documentation, and joined the website redesign committees.

    React NativeExpoPHPPythonJavaScriptSCSS
  4. EducationSep 2021 — Jul 2024

    BUT in Computer Science

    Université Grenoble Alpes

    University Bachelor of Technology in Computer Science. First serious dive into the web stack and software development fundamentals.

    Vue.js
  5. InternshipMar 2023 — Jun 2023

    Fullstack Developer

    ELIPCE Solutions · Valence

    End-of-program internship: maintenance work on Datanalyz, the internal platform deployed at client sites.

    PHP
  6. Student jobOct 2022 — Apr 2023

    Customer Service Agent

    La Poste Groupe · Valence

    Part-time student job: customer welcome and advisory in a postal branch, direct communication with a wide range of clients.

  7. EducationSep 2018 — Jun 2021

    High School Diploma

    LPO Monge

    General baccalaureate with Mathematics and Engineering Sciences — scientific groundwork before pivoting to computer science.

◊ 06 — Comms station

A fullstack developer role to fill?

Full-time offer, question about a project, collab or just saying hi: write me a few lines, I'll get back to you within 24-48h.

comms@leoderoin:~$ transmit