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Victor SerainVS

Victor Serain

Supermalter

Senior Javascript Developer | Product Owner

€700/day
13 projects
Chambéry, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Victor

With over 6 years of experience in web development, I am a digital craftsman 🛠️, capable of acting as a fullstack developer, solutions architect, or product coach.

Founder of Loompas 🚀 and creator of Horns Watch 🕰️, I assist startups and SMEs in designing efficient, high-performing, and user-oriented web applications.

Core Competencies:
💻 Fullstack Development: JavaScript, Node.js, MongoDB, API creation, UX/UI design.
🧩 Architecture & Consulting: Business needs framing, technical choices, strategic guidance.
🧑‍🤝‍🧑 Project Management: Agile piloting, turnkey delivery, long-term partnership.

Why work with me?
🎯 Clear product vision: Creating useful, durable, and user-centric tools.
⚡ Entrepreneurial spirit: Dual experience in tech and brand creation.
🌍 Human approach: Supportive collaboration, active listening, and passion for innovation.

Available for remote assignments.
📩 Contact:– Let's build something amazing together !
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Chambéry (up to 50km), Paris (up to 50km), Lyon (up to 50km)

Experience

  • Loompas
    CEO & Web & Mobile Application Developer
    DIGITAL AND IT
    September 2023 - Today (2 years and 9 months)
    Chambéry, France
    At Loompas, we have been assisting medium and large companies for over 8 years 🛠️ in modernizing and optimizing their information systems 💻.
    Our mission: to make your infrastructures more performant ⚡, more secure 🔒, and more scalable 🔄, while ensuring optimal business continuity ✅.

    🔍The numbers speak for themselves:
    ➔ +25 to 40% productivity 📈
    ➔ -13% on maintenance costs 💸
    ➔ -24% on infrastructure costs thanks to the cloud ☁️

    At Loompas, we apply best practices to design tailor-made solutions 🎯, adapted to current technological challenges 🌐.

    Whether for:
    🔹 Cloud migration 🚀
    🔹 API integration 🔗
    🔹 Process automation 🤖
    🔹 Performance optimization ⚙️

    We help our clients stay agile and competitive in a constantly evolving environment 🌍.

    💬 Want to modernize your information systems to gain performance and reduce costs?
    👉 Loompas is your trusted partner for successful digital transformation!
    JavaScript Typescript Team Management Lean Startup Svelte CTO HR ERP Digital Transformation Change Management Agile Project Management
  • Beta.gouv.fr - DINUM
    Lead Fullstack Developer - Freelance
    PUBLIC SECTOR
    January 2022 - Today (4 years and 5 months)
    En télétravail (Europe)
    🚀 Data.Subvention is a state startup whose mission is to make information about associations accessible to various government services.

    👨‍💻 As the first developer on the team, I designed and implemented the entire service: from backend architecture to front-end development. I also participated in user interviews to fully understand their real needs.

    🛠️Technologies used:

    Back-end:Node.js + Express, with an "Onion" architecture to properly structure the API.
    Front-end:Svelte, also following an Onion architecture approach.
    Database:MongoDB, suitable for managing a large volume of data.

    👥 Today, the team consists of **9 people**, including **3 developers**.

    🔗To learn more:

    https://blog.datasubvention.beta.gouv.fr

    https://github.com/betagouv/api-subventions-asso
  • Solocal
    Fullstack Developer - Freelance
    DIGITAL AND IT
    June 2021 - December 2021 (7 months)
    Chambéry, France
    🚀 Development of the BRIDGE v3 application: multi-technology microservices architecture ⚙️

    🔹 Angular (front-end)
    🔹 Node.js, Python/Django (back-end)
    🔹 MongoDB (database)
    🔹 RabbitMQ (messaging)
    🔹 Docker/Kubernetes (deployment & orchestration)

    👥Multi-skill environment:

    Design & architecture 🏗️

    Development 💻

    Implementation of testing strategy ✅

    Documentation writing 📚

    Setup and maintenance of CI/CD pipeline 🔄

    Tracking and resolution of technical debt 🧹

    📦Main activities:

    New developments ✨

    Releases 🚀

    Bug fixes 🐛🔧

    Documentation 📖
    JavaScript Node.js Typescript MongoDB Angular Microservices RabbitMQ Symfony

Reviews

5.0

Out of 1 rating

A

Antoine

NesteP (948689054)

Reviewed on 3/18/2024

It's always a pleasure to work with Victor. Easy to interact with, he makes sure the information exchanged is clear and understood. Very attentive. Regular follow-up, top delivery. This mission involved starting a personal project to consolidate a database on French hip hop to feed a mobile game. Victor was responsible for designing the server architecture and collecting/integrating the initial datasets. He laid the foundation for the service's API. Regular video calls to track project progress. Task definition in Trello.

Recommendations

Romain MercierRM
AB
Marion GuittonMG
+2
Romain Mercier and 4 other people have recommended Victor

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Education

  • RNCP Level 3 (Bac + 2) Title
    Web@academie by Epitech
    2019
    🎓 La Web@cademie by Epitech est une formation dédiée aux réorientations professionnelles, spécialisée dans le développement web. Durant ces deux années, dont une en alternance, j'ai participé à de nombreux projets en mode "learning by doing" 🛠️. À l'issue du parcours, j'ai obtenu le titre RNCP niveau 5 (équivalent Bac+2) et suis sorti major national de promotion 🏆. 🔹 Compétences acquises : Développement PHP & SQL 💻 Maîtrise de frameworks PHP : Symfony, Laravel, CakePHP 🛠️ Programmation JavaScript 🚀 Front-end & mobile avec Angular, React Native et PhaserJS 📱🎮

Skill set

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