Design Technologist
& Systems

Hi, I’m Carmen Ansio, a Design Technologist crafting systems into interfaces to create better developer experiences at Stripe.

Scroll to explore

Experience

Stripe

Global payments infrastructure powering millions of businesses worldwide. Developer-first design platform handling billions in transactions.

Design Systems Sep 2025 - Present

Building UI components, patterns, and tools for Sail design system, enabling consistent, high-quality user experiences across all Stripe products.

LottieFiles

The largest platform for Lottie animations, providing tools and resources for motion designers and developers.

Design Engineer Apr 2024 - Sep 2025

Built core tooling for animation theming and interactivity, enabling scalable, developer-friendly workflows across teams.

Consultant

Partnered with startups and established tech brands to build design systems and elevate their digital experiences.

Design System Specialist 2022 - 2025

Created and implemented scalable design systems and workflows for tech companies, with hands-on training focused on accessibility and performance best practices.

CodelyTV

Premium platform for software development courses in Spanish, focusing on best practices and clean code.

UX Engineer Jun 2022 - May 2023

Created engaging user interfaces and implemented micro-interactions for web applications.

Mango

International online retailer known for modern fashion and accessories.

UX Engineer Jul 2021 - Jun 2022

Implemented and maintained the design system using Angular and Storybook, ensuring consistent UI patterns across the platform.

Holaluz

Renewable energy provider focused on solar and green electricity in Spain.

Product Designer Nov 2019 - Jul 2021

Managed and evolved the Design System, ensuring adaptability across various digital projects and facilitating efficient design.

Desigual

Spanish fashion e-commerce brand celebrated for its vibrant and distinctive designs, with a global presence.

UX Engineer Aug 2017 - Nov 2019

Created visually compelling and highly functional UIs, driving better customer engagement through data-backed design decisions.

Projects

CSS Speed Dating

Find your perfect match among 30 modern CSS features. You have 60 seconds to fall in love with each one!

AppCSS

Cosmic Patterns

A collection of stunning gradient patterns for your next project. Free and open-source.

GradientsPatternsCSS

Blog

View All Articles →

Featured

Talks

Watch All Talks →

Design meets Code: Interactive animations with Figma

Figma Config 2025 May 2025

Scroll-Enhanced Experiences

CSS Day 2024 Jun 2024

CSS Speed Dating: 30 Modern Features

DevFest Valencia Nov 2024

Design Technologist & Systems