38233791883 - Senior Shopify Plus Full-Stack Engineer

Position: Senior Shopify Plus Full-Stack Engineer
Job Type: Full-Time - 100% Remote
Working hours: US Timezone (PT)

About Our Client
Our client is a fast-growing wellness brand on a mission to make high-quality, science-backed supplements accessible to families everywhere. Founded with a vision to reimagine the wellness industry, the company combines innovation, storytelling, and a relentless focus on customer experience. As the brand scales rapidly, its digital storefront plays a central role in driving growth—and they are seeking a Senior Shopify Plus Full-Stack Engineer to help elevate it to the next level.

About the Role
As a Senior Shopify Plus Full-Stack Engineer, you’ll lead the architecture, development, and optimization of our Shopify Plus storefront and checkout. You'll own everything from Liquid and Hydrogen builds to advanced integrations like Amazon SP-API for inventory synchronization. This is a high-impact, cross-functional role where your work directly supports our mission and growth.

Responsibilities

• Shopify Plus Architecture: Own the technical architecture and performance of our Shopify Plus storefront, including Liquid templates and Hydrogen-based builds.
• Custom Development: Build and maintain custom Shopify apps, checkout extensibility features, and backend integrations tailored to our unique business needs.
• Inventory Sync: Develop robust integrations with the Amazon Selling Partner API (SP-API) to align D2C and marketplace inventory.
• Performance Optimization: Monitor, test, and optimize site speed and performance for a seamless customer experience.
• Cross-Functional Collaboration: Work with Product, Marketing, Design, and Operations to launch new features, campaigns, and optimizations.
• Technical Leadership: Guide best practices in e-commerce engineering and Shopify innovation, making scalable architecture decisions.
• Maintenance & QA: Own the stability and reliability of your code through testing, debugging, and proactive maintenance.

Requirements

• 5+ years of full-stack engineering experience, including deep experience with Shopify Plus.
• Strong command of Liquid, Hydrogen, React, Node.js, and Shopify APIs.
• Familiarity with the Amazon SP-API or other complex marketplace integrations.
• Prior experience developing production-grade e-commerce systems.

• Excellent problem-solving, debugging, and architectural skills.
• Passionate about clean code, robust testing, and great user experiences.
• Proficient with Git and modern development workflows.
• Curious, self-directed, and comfortable working in a fast-paced, startup environment.
  

Nice to have

• Experience with headless commerce setups.
• Previous work in D2C wellness or consumer e-commerce brands.
• Familiarity with ERP systems, third-party logistics, or fulfillment integrations.