GRADION

Backend Engineer

• Own the frontend of a high-traffic headless storefront and the Node.js services behind it
• Lead design and development of a multi-market storefront in Next.js and TypeScript
• Choose and justify rendering strategies based on traffic patterns and freshness needs
• Design end-to-end caching from CDN and edge through browser, including invalidation
• Own performance budgets and optimize bundle size, hydration cost, and time to first byte
• Build and maintain orchestration between storefront and commerce services using Node.js with REST or GraphQL
• Handle multi-currency and multilingual storefront experiences
• Implement and iterate on payment and checkout flows using gateways such as Stripe, PayPal, Klarna, Apple Pay, and Google Pay
• Support A/B testing and analytics tracking
• Maintain unit, integration, and end-to-end test coverage and healthy CI/CD pipelines
• Support observability through logging, monitoring, and rollback procedures using AWS where applicable
• Guide and mentor mid-level engineers
• Collaborate with Gradion and client engineering teams, including European engineers
• Experiment with AI developer tools including Cursor, Claude, and Copilot

Senior Fullstack Engineer – Frontend focus, Next.js, Node.js, AWS