KJKillian Jeuffroy

I'm Killian - web developer based in France. I design websites ✦ applications that boost conversions and facilitate customer acquisition.

Latest projects

Boost your business with a performant and captivating website!

Development

Custom, performant and optimized sites

I create personalized websites that combine attractive design, advanced functionalities and optimal performance, perfectly adapted to your specific needs.

  • Custom and unique themes
  • Performance optimization
  • Responsive and mobile-compatible sites

Website SEO

With my best practices and SEO knowledge

I optimize your site for search engines to improve its visibility, increase your organic traffic and ensure a better position in search results.

  • Complete SEO audit and personalized strategy
  • Content and meta-data optimization
  • Loading speed improvement
  • Compliance with Google best practices

Integration & features

This is where the fun begins!

I develop advanced features and integrate personalized solutions to make your site not only aesthetic but also powerful and functional.

  • API and third-party service integration
  • Secure forms and payment systems
  • Custom features according to your needs

Website maintenance & management

I offer you a complete maintenance service

I handle the technical maintenance of your site to guarantee its security, performance and availability, allowing you to focus on your business.

  • Regular security updates
  • Performance monitoring
  • Automated backups
  • Responsive technical support

Client support and free quote

I accompany you throughout the process

I offer you personalized support at each stage of your project, from initial design to online launch, with post-launch follow-up to guarantee your satisfaction.

  • Strategic advice and guidance
  • Regular follow-up meetings
  • Personalized assistance
  • Detailed free quote without commitment

What my clients say

Killian created my portfolio in record time while meeting my expectations. His professionalism and ability to adapt to constraints allowed us to obtain a validated result quickly.

Matteo Grelier

I highly recommend Killian's services. He was able to understand my needs and respond to them perfectly with a custom WordPress site.

Laurent Jeuffroy