Simon Colijn

Design System And React Frontend Development For Teams

Founded: Founded 2016
Locations: 1 location

Simon Colijn

Design System And React Frontend Development For Teams

Founded: Founded 2016
Locations: 1 location

About

Simon Colijn is a freelance frontend consultancy and engineering practice specializing in scalable design systems, component architecture, and modern React platforms. The practice helps multi-team engineering organizations eliminate design drift and accelerate product delivery through token-driven foundations, strict TypeScript contracts, and AI-assisted development workflows.

Services

Tech Lead

Delivers technical leadership for frontend engineering teams, covering architecture decisions, developer experience improvements, engineering standards, mentoring, code reviews, and cross-squad stakeholder alignment to ensure cohesive and scalable codebases.

React Development

Builds and optimizes robust React and Next.js applications with a focus on reliability, rendering performance, accessibility, predictable state management, and maintainable component-driven development for high-traffic environments.

Design Systems

Establishes scalable design systems encompassing design token foundations, multi-brand theming, accessible component libraries, documentation hubs in Storybook, governance models, and 3-day introductory kickstart workshops to drive adoption.