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Mathias BragagiaMB

Mathias Bragagia

Senior Fullstack React / Node.js / Golang

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mathias

Senior Full-Stack Developer & Entrepreneur in Paris, expert in React.js, React Native, Node.js, and Golang. My mission? To transform innovative ideas into high-impact digital products.

My strength lies in my dual role as PM and CTO: I grasp both the strategic vision and the technical details of the code.

What I bring to your project:
→ Launch complex web & mobile apps (PWA, SSR, React Native) from zero to one, end-to-end.
→ Mastery of the modern technical ecosystem: Cloud (AWS, Vercel), CI/CD, Docker, databases (Postgres, NoSQL), Microservices, queues, comprehensive testing... and more!
→ Clear communication and excellent teamwork skills (perfectly bilingual French/English).

Ready to inject a dose of energy and solid technical and product expertise into your next project? Let's discuss!
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • Swan
    Software Engineer
    BANKING AND INSURANCE
    February 2025 - Today (1 year and 5 months)
    Paris, France
    At the heart of European FinTech at Swan (BaaS / Next 120 leader), I contribute to simplifying banking integration through an innovative API platform.

    Main focus:
    → High-performance and scalable back-end development (Node.js, TypeScript).
    → Reactive architecture, quality, and testing (Kafka, GraphQL, CI/CD, AWS, Docker).

    #Fintech #EmbeddedFinance #BaaS #NodeJS #TypeScript #Backend #API #Scalability #AWS



  • Splinar
    Chief Technology Officer - Co-Founder
    October 2023 - September 2024 (11 months)
    Paris, France
    Splinar | Your CRM hygiene companion Splinar automates the tedious task of deduplication and bulk merge operations in Hubspot, saving you time and effort. Every time your CRM changes, Splinar screens and cleans it. So long daily refresh, stay on top of your data 24/7. Put your data cleaning on autopilot today and join us in shaping the future of CRM hygiene.
  • Liberkeys
    Product Manager
    January 2021 - April 2023 (2 years and 3 months)
    Paris, France
    ️ Conception from scratch of a B2B SaaS in PWA to transform the work of real estate agents and multiply their capabilities. Responsible for half of the product's functional scope. Organization and conduct of user interviews. Design of major features, for example ️️ → A contract management tool with electronic signature to avoid unnecessary appointments at the agency → Generation of showcase websites for our client real estate agencies who want a simple and effective business card → Automated task management to avoid any omissions, improve customer satisfaction and simplify the agent's life. Implementation and evangelization of:
    - Slite.com to perpetuate knowledge throughout the company
    - Linear.app to finally replace Jira in the product team. Planning, monitoring, and communication of releases. In more detail:
    • Product research and design work in collaboration with the designer and the development team
    • Definition and prioritization of the roadmap with the Head of Product
    • Point of contact between different departments
    • QA management

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Education

  • Master en technologie de l'information
    Epitech
    2019
  • Certificat en technologie de l'information
    Université Laval
    2018

Skill set

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