Shopify Plus Architect - Enterprise Storefronts

MSP Corp; Montreal (administrative region); On-site; CAD 90,000 - 130,000; Full time

Job summary

MSP Corp is seeking a Shopify Plus Developer to join our East team as we re-platform and scale our enterprise eCommerce capabilities. You will own the technical build—from a full theme rebuild to custom apps, checkout extensibility, and deep platform integrations.

You’ll collaborate closely with brand, marketing, and agency partners to deliver on an ambitious roadmap. Reporting to the eCommerce Digital Director, you’ll work hands-on across the full stack, ensuring SEO and content strategy are

Qualifications

• Experience with Shopify Plus and enterprise-scale eCommerce builds.
• Strong REST/GraphQL experience and backend logic.
• Proficiency in Liquid, HTML/CSS/JS and theme development.
• Experience with CI/CD pipelines and Git workflows.
• Ability to collaborate with brand, marketing, and agency partners.

Responsibilities

• Build and maintain Shopify functionality across the full stack — themes, custom apps, and platform extensions.
• Lead the Shopify Horizon theme rebuild with a mobile‑first, performance‑first approach.
• Develop on Shopify Plus surfaces: Checkout Extensibility, Checkout UI Extensions, Shopify Functions, and Customer Accounts Extensibility.
• Implement and maintain integrations with core stack — Skio, LoyaltyLion, Yotpo, Georgias and Klaviyo.
• Own product data architecture through metafields and metaobjects.
• Ensure store performance under high‑traffic events such as drops and promotions.
• Participate in agile sprints with cross‑functional teams.

Tools

Shopify Admin API

Storefront API

Webhook management

REST API

GraphQL API

Liquid

HTML/CSS/JS

Figma-to-code

CI/CD pipelines

Job description

MSP Corp is seeking a Shopify Plus Developer to join our East team as we re-platform and scale our enterprise eCommerce capabilities. You will own the technical build—from a full theme rebuild to custom apps, checkout extensibility, and deep platform integrations.

You’ll collaborate closely with brand, marketing, and agency partners to deliver on an ambitious roadmap. Reporting to the eCommerce Digital Director, you’ll work hands-on across the full stack, ensuring SEO and content strategy are