Crafting intuitive, user-centered interfaces that transform complex problems into seamless digital experiences

Célestin Rumo

Frontend Developer

Passionate about creating user-friendly interfaces

Modern Stack, Managed Well

Component-driven UIs, measurable performance, and proactive communication at every step.

Web Design

I develop a tailored website concept based on the business needs and audience, creating wireframes that set the design and functionality foundation.

I design a visually appealing, user-friendly interface and provide an interactive prototype for testing, ensuring the sites are optimized for the targeted audience before launch.

Development

I create responsive, lightweight, and modern websites using the latest technologies tailored to your needs.

My approach ensures your website is up-to-date, optimized for performance, and delivers a seamless user experience.

With a modular design system, I guarantee consistency and a professional, cohesive online presence that effectively represents your brand.

Audit

I perform comprehensive audits of your website to evaluate the user experience, using the latest studies and best practices as benchmarks.

After identifying areas for improvement, I provide a detailed report with actionable feedback and specific recommendations.

These insights help enhance functionality, usability, and overall user satisfaction—ensuring your site is optimized for success.

Portfolio Examples

In-depth analysis of select projects

Personal ski portfolio

A refined portfolio highlighting elite ski instruction and bespoke Zermatt guiding, with concise offers, elegant UI, and seamless inquiry for a premium clientele.

Célestin Skiing

Van Booking Site

Developed a dynamic, user-friendly website for van rentals, simplifying booking and availability with mobile-first UX.

Cruxy van

Climbing Team Portfolio

Designed and built a portfolio for a climbing team with galleries, member pages, and outing highlights.

Lucky climbing team

Technologies stack

Specializes in modern front-end development, with deep expertise in building dynamic and responsive user interfaces. Proficient in utilizing a range of cutting-edge tools and frameworks to deliver high-quality, scalable, and maintainable software solutions.

Equipped with a strong understanding of the latest technologies to craft seamless and efficient applications tailored to meet complex project requirements

Testimonials

What clients and peers say

“Highly motivated and emotionally intelligent, he blends innovation with practical UX problem-solving and consistently delivers beyond expectations.”

“His passion for UX is evident and his emotional intelligence sets him apart. He unblocks complex problems with an empathetic, collaborative approach.”

“Dedicated, creative, and calm under pressure. He supports and inspires teams while maintaining high standards in accessibility and performance.”

Hire a Frontend Who Ships

From spec to ship: accessible UI, performance, and predictable delivery.

Talk to me about a role