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Olivier ColonnaOC

Olivier Colonna

FullStack TS | Next.js | Node.js | React.js

€550/day
Bidart, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Olivier

Full-stack JavaScript / TypeScript developer with over 15 years of experience, I help companies design, develop, and optimize modern, high-performance, and maintainable web applications.

I work on advanced front-end aspects as well as the overall product architecture: technical choices, code structuring, design systems, user experience, performance, CI/CD, and deployment.

Throughout my career, I have worked as Lead Developer, Senior TypeScript Developer, and Technical Architect on projects in various sectors such as finance, media, SaaS platforms, and high-traffic digital products. I am accustomed to working in demanding environments with product, design, and backend teams.

My main expertise:

Front-end & Product
React, Next.js, React Router, TypeScript, Tailwind CSS, shadcn/ui, design systems, complex interfaces, dashboards, content editors, responsive and internationalized applications.

Back-end & Architecture
Node.js, Hono, GraphQL, REST APIs, Supabase, PostgreSQL, Stripe, authentication, role management, business logic, and third-party integrations.

Cloud & Deployment
Vercel, Cloudflare Workers, Cloudflare Pages, R2, GitHub Actions, Docker, CI/CD, performance optimization, and infrastructure cost management.

I particularly enjoy working on products where the quality of the interface, clarity of the architecture, and speed of execution are essential. I can join an existing team to accelerate development, take over a complex technical base, or help lay the foundations of a product from scratch.

My approach is pragmatic: deliver quickly, cleanly, with a simple-to-maintain architecture designed for evolution.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Conversational

Can work on-site
Bidart (up to 50km), Paris (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km), Marseille (up to 50km)

Experience

  • Self employed
    Indie Hacker / Tech Entrepreneur
    February 2025 - Today (1 year and 6 months)
    Bidart, France
    I develop and launch my own digital products, primarily around web, SaaS, AI, content, and productivity tools. This activity allows me to explore the entire product cycle: identifying an opportunity, UX/UI design, technical architecture, full-stack development, deployment, SEO, monetization, and continuous optimization.

    I am involved in all stages of product creation, from prototype to production, with a very pragmatic approach: build quickly, measure, improve, and automate where possible.

    My projects lead me to regularly work with modern technologies such as TypeScript, React, Next.js, React Router, Node.js, Supabase, Stripe, Cloudflare Workers, Vercel, Tailwind CSS, shadcn/ui, and AI APIs.

    This indie hacker experience strengthens my ability to think like a developer, architect, product designer, and entrepreneur. It allows me to approach assignments with a global vision: technical quality, user experience, performance, infrastructure costs, SEO, acquisition, and business viability.

    I enjoy creating simple, fast, well-thought-out products that can evolve cleanly over time.
    TypeScript Next.js react-router Node.js Cloudflare
  • Cint,
    Staff TypeScript Developer
    April 2023 - January 2025 (1 year and 9 months)
    London, UK
    • Built 3 greenfield platforms: Cint Exchange, Developer Portal, and Admin Hub using Next.js, Tailwind CSS, and Radix UI
    • Architected internationalized, responsive applications with light/dark theme support
    • Major contributor to the Design System Core, ensuring scalable, reusable components
    • Improved CI/CD pipelines with GitHub Actions; Dockerized all applications for consistent deployment environments
    Next.js TailwindCSS Node.js GraphQL Design System
  • Lucid,
    Senior TypeScript Developer
    July 2020 - March 2023 (2 years and 8 months)
    London, UK
    • Developed and maintained a Node.js GraphQL middleware layer to orchestrate APIs
    • Architected React and TypeScript-based frontend solutions from the ground up
    • Advocated GraphQL best practices and efficient data modeling strategies
    Node.js GraphQL TypeScript Fullstack Next.js

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Education

  • Master's Degree
    ESGCI Business School
    2009
    Master's Degree
  • Bachelor's Degree
    INSEEC Business School
    2003
    Bachelor's Degree

Skill set

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