Simon Martinenq · Paris, France

Full-stack developer,business softwareand product.

Efrei engineer with a Master's 2 in information systems management. I combine technical rigour with an understanding of user needs, in agile delivery. I'm looking for a permanent full-stack developer position.

Download the CV (FR)CV (EN)
Specialities
React · Next.js · Symfony · Node.js
Education
Efrei engineer · Master's 2 GEM
Since 2023
Business software as a freelancer

01 · Background

Experience

2023 – 2026

Freelance Software Engineer

Self-employed · Paris, remote assignments

  • Custom software for ordering and product customisation, with an API-synced catalogue and a full backoffice.
  • CMS built with Next.js, TypeScript, Prisma and PostgreSQL: independent management of an agency's catalogue and administration.
  • Shopify stores: design integrated into a custom theme and store configuration.
  • ERP for craftspeople built with Symfony 5 and a REST API: 70 % of administrative tasks automated.
See the projects
2023 – 2024

Customer Success Manager

Campus Skills · Work-study

Team experience
  • ClickUp and GitHub Actions scripts to automate ROI and user feedback tracking, with bugs and KPIs automatically reported to a dashboard.
  • Documentation and tutorials for developers: API integration guides and best practices for technical clients.
  • Translating customer needs into technical specifications and following up on escalations.
Oct. 2022 – Mar. 2023

Software Engineer

The Keepers · Internship

Team experience
  • Rebuild of an internal business tool in Symfony 4.4 and Vue.js 3 from legacy PHP/jQuery code: analysis, reverse engineering, refactoring, back-end and front-end modules.
  • Agile delivery, end-user training and technical documentation used by more than 20 colleagues.

03 · Personal projects

Also, on the code side

2025GitHub ↗

Safe Share

Secure file sharing on the decentralised IPFS network.

IPFS (Helia) · Next.js · React · Tailwind CSS

2023 – 2024GitHub ↗

Percurus

A platform to track training and progress.

Next.js 15 · TypeScript · Prisma · PostgreSQL · NextAuth.js

04 · Skills

Tools

AdvancedIntermediate

Front-end

  • React
  • Next.js
  • TypeScript
  • JavaScript
  • HTML / CSS
  • Tailwind CSS

Back-end

  • Node.js
  • Express
  • Symfony (PHP)
  • Prisma
  • SQL / PostgreSQL
  • Python (Django)

Tools and DevOps

  • Git
  • API REST
  • Docker
  • CI/CD (GitHub Actions)

05 · Education

Studies

2019 – 2025

Computer engineering degree · Efrei Paris

Software Engineering major · graduated with honours of the jury

Software architecture, full-stack development and agile project management. International exchanges at ESSCA Budapest (2021) and UPC Barcelona (2025), double degree with GEM.

2023 – 2024

Master's 2 · Grenoble École de Management

Digital and information systems manager

IS strategy, steering digital transformation projects and managing multidisciplinary teams.

06 · More

Languages

LanguagesFrench · nativeEnglish · B2, TOEIC 875/990Spanish · A2
InterestsHorse riding, sailing, climbingOSINT · ethical open source intelligence