Shopify Headless Developer (Shopify Plus | Next.js | React)
Location: Detroit, MI (Hybrid - 3 days/week onsite) or any Publicis Sapient office in CST/EST
Duration: Long term (possibility of extension)
Employment Type: Contract
About the Role
You will collaborate with Product, UX, and Engineering teams to deliver scalable, secure, and high-performing digital commerce experiences.
Responsibilities
- Build custom customer experiences including product discovery, product detail pages, shopping cart, checkout, customer accounts, and post-purchase functionality.
- Integrate Shopify using Admin API, Storefront API, Customer Account API, GraphQL, and Webhooks.
- Design and implement dynamic storefront content using Shopify Metaobjects and Metafields.
- Build integrations with enterprise platforms including ERP, OMS, CRM, PIM, payment gateways, inventory, pricing, and fulfillment systems.
- Develop custom commerce functionality using Shopify Functions and Checkout UI Extensions.
- Optimize application performance, API efficiency, Core Web Vitals, and mobile responsiveness.
- Participate in Agile ceremonies and collaborate with cross-functional teams to deliver high-quality solutions.
- Implement automated testing using Playwright or similar frameworks.
- Utilize AI-assisted development tools such as GitHub Copilot, Cursor, or Claude to improve engineering productivity.
Required Qualifications
- 3-5+ years of ecommerce development experience.
- Strong hands-on experience with Shopify Plus.
- Proven experience building headless commerce applications.
- Experience with Shopify Admin API, Storefront API, Customer Account API, GraphQL, and Webhooks.
- Strong understanding of Shopify Metaobjects, Metafields, and Markets.
- Experience with API-first and composable architecture.
- Solid understanding of ecommerce workflows including catalog management, cart, checkout, payments, promotions, fulfillment, and order lifecycle.
- Experience integrating Shopify with enterprise applications such as ERP, OMS, CRM, PIM, payment providers, or fulfillment platforms.
- Strong understanding of frontend performance optimization and modern web development best practices.
- Experience working in Agile development environments.
Preferred Qualifications
- Experience with Hydrogen and Oxygen.
- Experience integrating headless CMS platforms such as Contentful, Sanity, Builder.io, or Adobe Experience Manager (AEM).
- Experience with Shopify Functions and Checkout UI Extensions.
- Knowledge of MACH or composable commerce architecture.
- Experience with authentication solutions including Auth0 or Okta.
- Experience with Vercel, Datadog, Sentry, or similar developer tools.
- Experience implementing WCAG 2.1 AA accessibility standards.
- Automotive or large-scale Retail ecommerce experience is highly preferred.