Roger Antonell

Frontend developer who designs.

For 7 years I’ve taken features from first sketch to production code. At Sunweb Group I was the main frontend developer on moving the customer account area to Next.js across 10 travel sites, and I designed parts of it, including booking details and the sign-in flow.

Earlier, at Algrano, my redesign of key pages led to six times more messages between users.

Work

Rebuilding My Account for 10 travel sites

Sunweb Group, 2025–2026

Migrated Sunweb Group’s customer account area to Next.js, market by market, and redesigned booking details.

Redesigning the auth flow

Sunweb Group, 2026

Redesigned and rebuilt sign in, account creation, verification and password reset for Sunweb Group’s 10 sites, then released it through a 50/50 canary.

Experience

Sunweb Group, Frontend Developer

to Present

Migrated the customer account area from Sitecore MVC to Next.js, one market at a time across 10 sites, as its main frontend developer. Designed and built its booking details page and sign-in flow. Case studies: rogerantonell.com/work/my-account and rogerantonell.com/work/sign-in.

Algrano, Frontend Developer

to

Designed and built features, including a redesign of key pages that led to six times more messages between users. Started its design system in Figma and Storybook.

Sunweb Group, Frontend Developer

to

Built user-facing features across the product in small, cross-functional teams. Helped build the multi-platform design system, working closely with designers to turn ideas into reusable components.

Skills

Frontend

HTML, CSS, JavaScript, TypeScript, React, Next.js, Tailwind CSS, REST APIs, Jest, Git

Design

Figma, Design systems, Storybook, Accessibility

Languages

English (professional), Spanish (native), Catalan (native)

Education

Professional Certificate in Web Application Development

Fundació Mil·lenari, Vic, Spain, to