I help startups and businesses build exceptional digital experiences with modern web technologies.
With over 10 years of experience in web development, I specialize in building high-performance, scalable applications using modern technologies like React, Node.js, and TypeScript.
I’ve worked with startups and established companies to deliver exceptional digital experiences that drive business growth and user engagement.
Name:
Julien Karst
Email:
hello@julienkarst.com
Location:
Paris, France
Availability:
Open to opportunities
Companies and projects powered by my code
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Delivering measurable results through technical expertise and strategic innovation.
A proven methodology for delivering exceptional results
Understanding your business, goals, and requirements to create a solid foundation.
Developing a strategic roadmap with clear milestones and deliverables.
Building your solution with regular updates and opportunities for feedback.
Launching your project with thorough testing and ongoing support.
Ready to start your project?
Get StartedExpert development solutions that accelerate your business growth
Designing resilient, scalable back-end systems that power your products and grow with your traffic.
Comprehensive analysis of your codebase to identify issues, improve quality, and implement best practices.
Crafting high-performance iOS & Android apps—native or cross-platform—tailored to your business goals.
Crafting intuitive, visually engaging interfaces that delight users and achieve business goals.
Providing expert advice on technology stack selection, architecture design, and development workflows
Custom web applications and websites built with modern technologies and best practices
Thoughts on technology, development, and digital innovation
A selection of projects that showcase my expertise in building scalable, user-friendly applications.
Organizations that rely on my expertise to build exceptional digital experiences
Find answers to common questions about my services and process
Ready to transform your ideas into reality? Get in touch and let's discuss your project.
