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Dylan J. GerritsDJ

Dylan J. Gerrits

Full-stack Developer | Software Architect

€500/day
44 projects
Nantes, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Dylan J.

A true Franco-Swiss army knife with nearly a decade of experience, you can leverage my services to design, implement, maintain, and optimize IT solutions together.

I am very versatile, with a global vision of the development cycle of an IT project, from its architectural design to its implementation, including its organization and management. Due to my versatility, I can assist you with tasks at each of these stages. I can work on both the Front-End and Back-End.

Open to opportunities, I have a particular interest in pedagogy and am therefore also open to training and/or mentoring roles.

In terms of technological preferences, I have particular expertise in JavaScript, with or without TypeScript (or Flow), and particularly appreciate the MERN stack (Mongo DB, Express, React, and Node).

To date, I have primarily worked on JavaScript frameworks (React and React Native) and Node (Express), Java (Spring Boot), PHP (Symphony and Laravel), and C# (.NET Core), on which I would be inclined to work again. However, I wish to continue expanding my skills. My adaptability and rapid learning abilities are eager to take on new challenges, particularly by leveraging my software architecture skills in positions of responsibility.

I prefer to work as an independent contractor, 100% remotely, but I remain open to other opportunities.

I am currently available.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Nantes (up to 15km), St.-Herblain (up to 15km)

Experience

  • Hipay
    Senior Software Engineer
    BANKING AND INSURANCE
    March 2025 - Today (1 year and 5 months)
    Nantes, France
    ◉ API Design and Development
    ◉ Mobile Application Design and Development
    ◉ Automation of Processes via Artificial Intelligence
  • OpenClassrooms
    Web Developer and Integrator / Mentor and Evaluator
    EDUCATION AND E-LEARNING
    March 2023 - Today (3 years and 4 months)
    ◉ Evaluation of student projects via videoconference
    • Analysis of projects presented during online defenses
    • Review of technical skills, methodology, and learner presentations
    • Assessment of code quality, solution relevance, and understanding of concepts
    • Validation of acquired knowledge and guidance of professional development
    ◉ Weekly learner support
    • Personalized and in-depth learner follow-up.
    • Technical support including step-by-step debugging, with detailed explanations and concrete examples to facilitate understanding.
    • Proactive sharing of web development best practices through practical use cases and targeted recommendations.
    • Facilitation of individual sessions to clarify complex concepts, using relevant analogies and interactive demonstrations.
    🏆 This support has enabled a dozen students to successfully complete their training and obtain their professional title, marking a crucial step in their careers.
    Front-End Development Back-End Development Pedagogy
  • O'Clock,
    Application Designer and Developer / Training and Educational Tutor
    EDUCATION AND E-LEARNING
    March 2023 - March 2025 (2 years)
    ◉ Creation, updating, and delivery of courses on various modules
    • Delivery of courses on the following modules:
    - GraphQL API
    - Microservices Architecture
    - Design and Modeling
    - Containerization and Orchestration
    - Back-end Development
    - Front-end Development
    - Mobile Development
    - Project Management and Agile Methodologies
    - Continuous Integration and Deployment
    - Object-Oriented Programming
    - Security
    • Creation of numerous demonstration applications of varying complexity in containerized environments.
    ◉ Learner Support
    • Supporting learners throughout their training journey
    • Real-time technical assistance during classes, problem-solving, and sharing development best practices
    • Clarifying complex concepts and providing detailed explanations to facilitate understanding
    • Personalized advice during practical exercises and projects to overcome technical obstacles and improve code quality
    • Support in project management: work planning, deadline adherence, and adoption of development methodologies
    • Individual educational follow-up: feedback, progress reviews, personalized support, and regular exchanges
    ◉ Management of a cohort in collaboration with the educational team
    • Coordination of a learner cohort in close collaboration with trainers and the administrative team
    • Regular monitoring and provision of constructive feedback for continuous improvement of the training program
    Pedagogy Front-End Development Back-End Development

Reviews

5.0

Out of 18 ratings

L

Loic

Backend - FurNova

Reviewed on 5/23/2026

L

Loic

Backend - FurNova

Reviewed on 5/22/2026

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Education

  • Software Architect [RNCP Level 7 | Master's Degree]
    OpenClassrooms
    2022
    - Extraire les besoins d'un client au sein d'un cahier des charges - Faire l'audit d'une architecture existante - Chercher et présenter des solutions d'architecture - Analyser une dette technique - Créer la roadmap d'une architecture - Définir des tests orientés business et des frameworks de gouvernance de l'architecture - Développer une preuve de concept - Gérer les changements de direction et les besoins d'un projet pendant son cycle de vie
  • Web and Mobile Web Developer [RNCP Level 5 | Bachelor's Degree]
    ENI - School of Computer Science
    2021
    - Algorithmique - Initiation à la programmation avec Java - Développement web côté client Front-End (HTML, CSS) - Langage de requête SQL avec SQL Server - Procédures stockées avec PL-SQL - Programmation Orientée Objet (POO) avec Java - Développement en couches et la persistance des données avec Java SE - Développement web côté serveur Back-End avec Java EE (Projet 1) - Développement d'une application structurée en couches - Analyse et conception - Programmation côté client avec Javascript - Développement web côté serveur Back-End avec PHP et Symfony (Projet 2) - Développement d'une application web - Développement d'application à l'aide d'un CMS - Développement d'une application mobile avec Android

Skill set

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