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Leon StankovicLS

Leon Stankovic

Full stack developer

€500/day
Toulouse, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Leon

Hello startup, SME, or agency,
Are you looking for a reliable full stack React Next.js developer to accelerate your web project, refactor a legacy application, or launch a high-performance MVP without breaking the bank on a team?
I help you design and deliver modern, scalable, and SEO-friendly web applications: optimized e-commerce sites, B2B SaaS, internal tools, data dashboards, or platforms with complex API integrations (payments, AI, CRM…).
What sets me apart: clean and maintainable code (modular architecture, automated tests), strong business orientation (I think product and end-user), strict adherence to deadlines, and ultra-responsive communication. No unnecessary technical jargon, just concrete results that boost your growth.
Usual projects:
MVP from A to Z in 4–8 weeks
Legacy refactoring / migration to Next.js 14+ / App Router
Full-stack development React + Node.js/NestJS + PostgreSQL
Performance / SEO / SSR optimization to increase your conversions
Immediately available remotely – Daily rate adapted based on duration/complexity.
Do you have an urgent need or an ambitious project? Contact me, we'll discuss it in 15 minutes, and I'll propose a clear roadmap.
You can also view my work at: Looking forward to boosting your product! 🚀
  • French

    Native or bilingual

  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • INFOCOLAB
    Full stack developer
    February 2024 - Today (2 years and 4 months)
    Hello,
    I am Léon, a freelance full stack developer with 12 years of experience in designing and developing modern, high-performance, and scalable web applications.
    I support startups, SMEs, and agencies on various projects:
    SaaS applications / internal tools
    Highly optimized e-commerce and showcase websites
    Complete refactoring of legacy platforms
    Rapid MVP deployment
    Complex API integrations (payments, CRM, AI…)
    My main stack in 2026:
    Frontend: React, Next.js, TypeScript, Tailwind / Shadcn/UI, Zustand / Redux Toolkit
    Backend: Node.js (Express / NestJS), Python (FastAPI / Django), sometimes PHP (Symfony / Laravel)
    Databases: PostgreSQL, MongoDB, Redis
    Infra & DevOps: Vercel, AWS / GCP (basic), Docker, CI/CD
    Strengths appreciated by my clients: clean and maintainable code, strong product orientation, on-time delivery, fluid and proactive communication.
    Immediately available for remote missions.
    PostgreSQL React.js Next.js Vite.js Front-End Development

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