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YK Développement

Services

Everything I build, and what it takes.

Eight ways to work together, from a single feature to a complete product. Every service ships production-grade, with a clear starting price and a direct path into a tailored quote.

  • Premium website

    A bespoke, fast, accessible web presence that reflects your brand and converts, from a sharp one-page site to a structured multi-page showcase.

    What you get

    • Custom design, never a template
    • Responsive down to 320px, AAA accessibility
    • SEO foundations, sitemap and metadata
    • Contact form and privacy-friendly analytics

    Typical stack

    • Next.js
    • TypeScript
    • Tailwind CSS
    • Framer Motion
    • Vercel
  • E-commerce

    Fast storefronts with secure payments and catalogue management, built for conversion and effortless day-to-day operation.

    What you get

    • Catalogue, cart and checkout
    • Secure Stripe payments
    • Order and inventory management
    • Performance and SEO tuned

    Typical stack

    • Next.js
    • Stripe
    • PostgreSQL
    • Tailwind CSS
  • Web app / SaaS

    Robust dashboards, back-offices and platforms built to scale: typed end to end, tested, and ready for real users and real data.

    What you get

    • Typed architecture, front to database
    • Authentication and role management
    • Business logic and third-party integrations
    • Automated tests and continuous integration

    Typical stack

    • Next.js
    • TypeScript
    • PostgreSQL
    • Prisma
    • Redis
  • Mobile app

    Cross-platform iOS and Android apps with a native feel, a shared codebase and offline-ready data.

    What you get

    • iOS + Android from one codebase
    • Native navigation and gestures
    • Push notifications and deep links
    • App Store and Play Store submission

    Typical stack

    • React Native
    • Expo
    • TypeScript
    • React Navigation
  • Full turnkey project

    Strategy, design, build and deployment: one partner from the first sketch to production, across web, mobile and back-end.

    What you get

    • Discovery and scoping
    • Design and development
    • Web, mobile and back-end
    • Deployment and handover

    Typical stack

    • Next.js
    • React Native
    • PostgreSQL
    • Rails
    • Vercel
    Priced togetherEstimate this service
  • Development à la carte

    A specific feature, a component, a front-end integration from Figma or a back-end API, dropped cleanly into your existing product.

    What you get

    • Feature or component build
    • Pixel-accurate Figma-to-code
    • REST or GraphQL API
    • Auth, payments and notifications

    Typical stack

    • TypeScript
    • React
    • Node.js
    • GraphQL
    Priced togetherEstimate this service
  • Audit & consulting

    A clear, actionable read on your performance, SEO, accessibility or architecture, with a prioritised plan you can act on.

    What you get

    • Performance and Core Web Vitals
    • Technical SEO
    • Accessibility against WCAG 2.2
    • Architecture and tech-choice review

    Typical stack

    • Lighthouse
    • axe-core
    • Core Web Vitals
  • Maintenance (SLA)

    Corrective, evolutive and security upkeep on a monthly plan: your product stays fast, safe and up to date.

    What you get

    • Bug fixes and monitoring
    • Dependency and security updates
    • Small evolutions each month
    • Plans: Essential / Pro / Premium

    Typical stack

    • Sentry
    • GitHub Actions
    • Dependabot
    from €400/moEstimate this service

The full catalogue

Every service groups into eight families. Open any one to understand the choice and start your quote in a click.

  • Web & online presence

  • Web applications

  • Mobile applications

  • Development à la carte

  • Turnkey project

  • Consulting, audit & optimisation

  • Maintenance & support

  • Design & UX

Ready to go from idea to product?

Get an estimate in under 4 minutes. No commitment.