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Antonin Malzieu RidolfiAM

Antonin Malzieu Ridolfi

Backend Developer | Ruby · TypeScript · Rust

€500/day
Montpellier, FR
3-7 years
Rust
Ruby
Event-driven architecture
Clean Architecture
JavaScript

Average response time: 1 hour

Freelancer profile translated to English.
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About Antonin

Backend engineer with 7 years of experience, specializing in Ruby on Rails, Node.js, and TypeScript. Driven by software quality and its alignment with the product: daily practice of TDD, Clean/Hexagonal Architecture, BDD, and Event Storming. Particular taste for readable code and knowledge sharing. Specializing in Rust: web (Actix, Axum), systems, and open-source contribution. Active technical watch on generative AI applied to development. Seeking freelance assignments or a backend position in France, remote or relocation, in a small, autonomous team, ideally in an impact sector.

Skills

Languages: Ruby · JavaScript/TypeScript · Rust · C · Elixir · Python
Back-End: Rails · NodeJS · REST API · RabbitMQ
Craft: TDD · Behaviour-Driven Development · Mutation testing · Clean/Hexagonal Architecture · DDD · Event-driven Architecture
Front-End: VueJS · React · Redux · HTML/CSS · Tailwind
Data: PostgreSQL · MySQL · MongoDB · Redis · Kafka (studied)
DevOps: Docker · CI/CD · AWS · Heroku · OAuth/OpenID Connect · Terraform
Energy and Electricity
Environmental and Sustainable Development
Catering
Education Systems, Research, and Universities

  • French

    Native or bilingual

  • English

    Native or bilingual

  • Japanese

    Conversational

  • Spanish

    Conversational

Can work on-site
Montpellier (up to 50km), Paris (up to 20km)

Experience

  • Omnicité
    Software Cooperative Engineer
    March 2026 - Today (3 months)
    Juvignac, France
    Under a CAPE contract.
    - Seeking professional opportunities in web development
    - Currently contributing to Rust for Linux: Nova DRM and awaiting LKMP and potential contributions to Mesa
    Rust Clean Architecture TDD/BDD Mutation testing
  • Indépendant
    Personal Project & Rust Specialization
    August 2024 - April 2026 (1 year and 8 months)
    Intentional break to prepare for international immersion and technical specialization in systems and embedded engineering, continuing the C foundations acquired at École 42.
    • Intensive Japanese language immersion (~JLPT N3)
    • Elixir: deepening functional paradigms through Exercism and pair learning, small contributions to Mobilizon development
    • In-depth Rust learning: Rust Book, Exercism, Rust Pool, community events
    • LFD103 Certification, The Linux Foundation (April 2026): active preparation for Rust for Linux contribution
    Rust Elixir Clean Architecture Event-driven architecture Domain Driven Design
  • ilek
    Backend Engineer | Ruby • Typescript • React
    ENERGY AND UTILITIES
    December 2021 - August 2024 (2 years and 8 months)
    Nantes, France
    Progressive migration from a legacy monolith to a central API with independent services, in a context of strong growth (tech team x4, target 100k → 500k clients) and following a complete restructuring of technical management.
    • Leadership on TDD/BDD, ATDD, and mutation testing practices within the conversion and internal product teams: reduction of critical bugs from 75,000 to 5,000 per retention period (Sentry)
    • Automation of the call assignment system: 99% reduction in customer waiting time
    • Onboarding and upskilling of junior developers on hexagonal architecture, design patterns, and TDD/BDD practices through pair programming and code reviews
    • Facilitation of Event Storming workshops to align technical design and business needs
    • Redesign of the legacy subscription funnel: reduction of manual compensations, +35% customer conversion rate
    • Elimination of 95% of flaky tests through collective effort: CI/CD velocity multiplied by 4-5x
    Ruby on Rails Event-driven architecture TypeScript React.js Clean Architecture
Check out Antonin's experience

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Education

  • Digital Technology Architect
    42
    2019
    Formation d'environs 3 ans dans une des écoles d'informatiques les plus réputées de France. ‣ Plus de deux ans d’apprentissage en développement informatique. ‣ 1 Stage de 6 mois en entreprise. ‣ 3 formations intensives en Unity, C++ et PHP. ‣ Une dizaine de projets réalisés en C dont un shell complet, 3 projets pour découvrir le Sys/DevOps avec Docker, AWS et Google Cloud. ‣ Des projets personnels pour découvrir différentes techno : challenges Root Me, Python, NodeJS, Docker, Ruby on Rails, ... ‣ Deux Game Jam de 48h : développement de jeux en Lua et ReactJS from scratch. ‣ Une quarantaine de conférences, meet-up ou workshop autour de l’informatique et du numérique. ‣ Encadrement et membre du jury d'un hackathon.
  • Math - Computer Science
    University of Montpellier
    2016

Certifications

Skill set

Distributed Systems
Free Software
Web Development
Event Sourcing
C
Functional Programming
TDD
Git
Ruby on Rails
Software Architecture
QA Testing
Docker
C++
Agile Methodology
REST APIs
Node.js
DevOps
Serverless
MongoDB
PostgreSQL
MySQL
Python
Development
Backend Development
Heroku
Google Cloud
Amazon Web Services
RabbitMQ
Elixir
Domain Driven Design
CQRS
Event Storming

Categories