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Lucas BellierLB

Lucas Bellier

Fullstack Developer Typescript 💙

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lucas

👋 Hello

I am a passionate and experienced Fullstack developer, specializing in JavaScript and TypeScript technologies. With a strong command of the JS ecosystem's frameworks, I strive to create high-performing, secure, and user-friendly web applications.

🔍 My approach:

I firmly believe in the power of clean, maintainable code. This translates into a strong focus on code cleanliness, modularity, and efficiency. I am committed to delivering optimal solutions, taking into account the specific needs of each project and proposing innovative ideas to overcome technical challenges.

💻 Technical Skills:

Frontend: React.js, Next.js, React Native
Backend: Node.js, Express.js, Nest.js, REST APIs
Databases: PostgreSQL, MongoDB depending on project needs
Cloud: AWS Cloud Practitioner certified, basics in GCP and experience with cloud architectures
Methodologies: Scrum PSM 1 certification, experience in agile teams

🛠 I am comfortable with:

Designing high-performance showcase websites
Creating responsive and intuitive user interfaces
Developing robust and efficient APIs
Collaborating with multidisciplinary teams and communicating with stakeholders

📈 Commitment to success:

My goal is to contribute to the success of your projects by leveraging my experience and Fullstack development skills. I am looking for new challenges and opportunities to help companies innovate and thrive in the digital age.

Feel free to contact me to discuss how I can bring value to your project. Looking forward to collaborating with you!
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • BAM Karaoke Box
    Fullstack Web Developer
    January 2026 - Today (5 months)
    Paris, France

    Main tasks:

    Full-Stack Development (New Features):

    • Design and implementation of new client-oriented features (e.g., booking flow, playlist system, notifications, user account management).
    • Development of reusable and performant UI components to ensure a smooth experience on desktop and mobile.
    • Integration of third-party APIs (payment, CRM, communication services) to enrich the sales funnel.

    Back-Office & Business Tools Management:

    • Development and maintenance of internal management tools (Back-Office) for operational teams (scheduling, booking tracking, room analytics).
    • Automation of internal workflows to reduce the administrative burden on on-site teams and facilitate activity management.

    Maintenance & Stability (Run):

    • Corrective and evolutionary maintenance: diagnosis, resolution of critical bugs, and refactoring of existing code to reduce technical debt.
    • Performance optimization: improving API response times, SQL queries, and client-side rendering to ensure high service availability, especially during peak periods.
    Typescript Amazon Web Services React.js NestJs
  • Predi.GG
    Co-founder
    September 2025 - Today (9 months)
    Hôtel de Ville, Paris, France
    Passion for esports turned into a real product. Predi.GG is a prediction platform built from scratch and shipped to the stores.
  • Favikon
    Fullstack Web Developer
    TECH
    September 2023 - September 2025 (2 years)
    Paris, France
    Development of an innovative SaaS to optimize influencer marketing strategies, including CRM management, campaign creation, email sending...
    Next.js React.js Express Express.js Typescript

Recommendations

Theo HeliasTH
MK
Miguel P.MP
Theo Helias and 2 other people have recommended Lucas

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Education

  • Master's Degree - Digital Engineering Manager
    IIM
    2025
  • Bachelor's Degree - Application Designer Developer
    Need For School
    2023

Certifications

Skill set

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