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Principal UI Engineer, Design System

Job in Toronto, Ontario, M5A, Canada
Listing for: Equinix
Full Time position
Listed on 2026-02-16
Job specializations:
  • IT/Tech
    Systems Engineer, UI/UX Design, Product Designer, Product Engineer
Job Description & How to Apply Below

Who are we?

Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.

A place where tech thinkers and future builders turn bold ideas into breakthrough experiences, we welcome your unique perspective.

Help us challenge assumptions, uncover bias, and remove barriers—because progress starts with fresh ideas. You’ll find belonging, purpose, and a team that welcomes you—because when you feel valued, you’re empowered to do your best work.

Job Summary

We're looking for an experienced engineer to help build the next iteration of our design system. Our system powers applications spanning consumer products, B2B offerings, and internal tools, enabling cohesive, accessible, and scalable components across all touch points.

You'll bridge design and engineering, creating space to do great work supporting product teams, whether they need front-end expertise, accessibility knowledge, or help shipping features faster. You'll play a key role in evolving our design system to unlock the potential of AI, driving innovation and design coherence at scale.

Our Team

We champion the design system throughout Equinix. Our mission is to empower product teams to effortlessly create, share, and discover UI components, letting them focus on innovation by simplifying the complexities of development and management. Crafting exceptional digital experiences is at the core of everything we do.

Our vision is a future where product teams work at pace and with ease. To make this real, our team prioritizes craft and quality, continuously improving the system in ways that compound over time. Collaboration is key as we evolve and expand the design system, ensuring seamless integration of design and engineering.

The team is deeply rooted in human-centered values, which guide daily work and interactions. While code is important, the true impact extends beyond it by shaping how teams collaborate, create, and deliver exceptional user experiences.

Responsibilities

Innovation & Expertise

  • Define how we measure success and drive continuous evaluation of those metrics to prove impact and guide priorities

  • Guide architectural decisions on component design, modularity, scalability, and API patterns that work across the organization, contributing code to critical components and features while mentoring the team on best practices for code quality, documentation, and testing

  • Develop and ship high-quality components and tools that set the standard for performance, accessibility, and craft

  • Drive innovation by staying current with industry trends and investing in AI-driven capabilities like generative design, automation, and intelligent tooling that advance how teams use and contribute to the system

  • Establish governance, documentation, and contribution models that maintain quality, accessibility, and scalability as the system grows

  • Cross-Functional Collaboration & Stakeholder Engagement

  • Work directly with designers and cross-functional partners to understand requirements, navigate trade-offs, and build consensus on solutions that shape our digital experiences

  • Partner with leadership to define how we work, clarify ownership, and set clear expectations for the team

  • Help shape the vision, strategy, and roadmap for our design system

  • Own the technical vision and execution for the design system

  • Evangelize & Educate

  • Promote the design system through workshops, presentations, and documentation that helps product engineers ship features independently, telling the story of how it connects to business outcomes throughout the organization

  • Establish strong relationships with engineering, design, and product to understand their challenges, deliver solutions that help, and position the team as essential partners in shipping great products

  • Team Impact

  • Guide teammates through pairing, code reviews, and technical guidance that raises the bar for the entire team

  • Foster a collaborative environment where knowledge sharing and healthy debate lead to better solutions

  • Identify and solve complex technical challenges independently, knowing when to collaborate and when to drive forward with conviction

  • Qualif…

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