Allons-y (ah-lo(n)-zee) is an idiomatic French expression meaning roughly, “Let's go!”
That's exactly the energy we bring to design systems work. We help organizations build front-end infrastructure that empowers teams—transforming design vision into production-ready code while establishing the workflows that make collaboration seamless.
With expertise from Adobe, Red Hat, and the W3C CSS Working Group, we deliver enterprise-scale solutions that balance innovation with accessibility, performance, and developer experience. In addition to our technical expertise, we have available an experienced project manager with extensive government and banking experience, managing projects large and small from start to finish.
Design systems
We have a deep understanding of design systems and how to create them. As a staff engineer and open source maintainer, Cassondra has worked with a variety of design systems and has a lot of experience with building them for complex use-cases at an enterprise scale.
Front-end development
From building custom design systems to implementing enterprise-level front-end solutions, Cassondra has expertise with the latest technologies and techniques to deliver high-performing, accessible web experiences.
Accessibility
We are passionate about accessibility and have a deep understanding of WCAG standards and requirements. Cassondra is experienced implementing accessible web components and setting up advanced testing frameworks to ensure compliance at the enterprise scale, while our project manager, Michael, has led government contracts with strict accessibility requirements.
Performance
Performance can make or break the user experience and validating your code is a critical part of the development process. Cassondra has experience with a variety of performance testing frameworks and tools to help you ensure your code is performing above and beyond the minimum requirements.
Open source
As a staff engineer and open source maintainer, Cassondra has worked with a variety of open source projects and has a lot of experience with building and managing communities around them. She is passionate about helping others learn and grow in the open source community.
Training
We offer training and workshops on a variety of topics, including design systems, front-end development, open source, and project management. We can tailor our training to your specific needs and goals.
Project management
We have recently added Michael Roberts, a project management expert, to our team. As an accredited project manager, he has worked with a variety of projects including large-scale enterprise software development and digital transformation initiatives.
Let's talk
To discuss how we can work together, please book a free call with us.
Available for full-time, consulting, speaking, writing, or workshops.

Posts
Introducing envoy: environment setup, handled
26 March 2026
Every project starts with the same tedious ritual — copy .env.example, track down the values, paste them in. In a monorepo, that ritual scales badly. Here's a tool I built to eliminate it entirely.
Performance monitoring for web components
23 November 2025
Web components are great for encapsulation and reusability, but how do you know if they're performing well? This post shows how to upgrade your components with the User Timing API to get actionable insights.
A Storybook format that scales
31 October 2025
Storybook is a powerful and flexible tool but with great power comes great responsibility...to architect a scalable and intuitive approach. In this post, I dive deep into techniques for building a Storybook your developers and users will love.
Presentations
Presentations or interviews I've given at various events, conferences, podcasts, and streams.
Connecting with individuals and organizations to share my knowledge and experiences is one of my favorite parts of my job. I'd love to hear about your event or podcast to see how we can work together. Grab a free call to discuss your needs.
CSS Day | 2023
Shining Light on the Shadow DOM
All about the Shadow DOM and how to use it to build better web components.
DrupalCon | 2019
Unlocking design in a design system with custom properties
A deep-dive on how to leverage custom properties to create a flexible and customizable design system.
DrupalCon | 2019
Make web development fun again, with web components!
A joint presentation with Penn State on how web components can make development workflows fun and efficient.