Rebuy

Overview

You'll join the team that owns Checkout, Post-Purchase, Smart Flows, and A/B Testing — what a shopper sees during and after checkout on Shopify, and the tools merchants use to run experiments on their stores. You will work across PHP services, a TypeScript API, MySQL, and a BigQuery event pipeline in an AI-first remote environment.

About Rebuy

At Rebuy, we’re on a mission to revolutionize shopping with intelligent, personalized experiences that wow customers around the globe. As a fully remote team, we power some of the fastest-growing DTC brands like Tecovas, Momofuku, Dime Beauty, Liquid Death, Magic Spoon, OLLY, and many more.

Requirements & Eligibility

• Proven track record operating with Staff-level ownership: minimal spec, driving a technical decision or migration end-to-end across multiple systems or teams, influencing engineering decisions outside your own team.
• Fluent daily use of AI coding tools, with the judgment to tell a plausible-looking result from a correct one.
• Strong troubleshooting in an unfamiliar codebase, reading a stack trace or failing test back to its cause in TypeScript or PHP.
• 8+ years building production web applications, with hands-on experience shipping and maintaining both PHP and TypeScript with React.
• Experience owning a revenue-critical, customer-facing system in production.
• Hands-on experience with BigQuery on Google Cloud or another columnar warehouse, plus comfort with MySQL schema design and migrations.
• Testing discipline across unit and end-to-end suites.
• Solid understanding of secure coding fundamentals including the OWASP Top 10.

Key Responsibilities

• Own Shopify checkout and post-purchase features.
• Rebuild experimentation reporting for Smart Flows and A/B Testing.
• Build robust REST APIs in PHP and TypeScript.
• Keep production healthy, investigate merchant-reported problems, and participate in on-call rotation.
• Work AI-first using Anthropic's Claude Code across development, review, and testing.
• Perform own quality assurance in unit and end-to-end suites and against real Shopify stores.
• Look beyond your own ticket to review code, weigh in on technical decisions, and mentor by example.