Senior Fullstack Software Engineer, Content Experiences

Tapcart is the leading mobile app platform for the world’s fastest-growing Shopify brands. The Senior Fullstack Software Engineer on the Content Team will own the component library and UI blocks, delivering end-to-end solutions while collaborating with product, design, and engineering teams to enhance mobile app development.

Responsibilities:

• Design, ship, and maintain a reusable, type-safe React/Next.js component system
• Prototype new UI and features in weekly sprints, validate with live merchants, and iterate to release to thousands of apps
• Optimize bundle size, server-side rendering, client-side performance, and WCAG compliance
• Build tooling (CLI, CI pipelines, linting) that makes it easy for outside developers to extend our product without limits

Requirements:

• 5-7 years of experience in software engineering
• 3+ years of full‑stack development with React Native, React + Next.js (TypeScript)
• Experience building and maintaining design systems/component libraries
• Familiarity with cloud deployments and hosting
• Ability to ship production-ready code in a fast‑paced, cross‑functional environment
• Shopify or ecommerce experience
• GraphQL experience
• Background in UX, product or design critique
• Contributions to open‑source component libraries or design‑system tooling