Full Stack Engineer, Shopify Apps (Part Time, Long Term Potential)

I run Trio Commerce, an Australian start up with Shopify apps that need ongoing support and enhancements. I'm looking for a collaborative, mid to senior level full stack engineer with strong technical knowledge who delivers results, works well as part of a team, and can build improvements based on my requests and merchant feedback. While Shopify is our primary focus, we also have app ideas outside of Shopify that we'd like to prototype, so strong app development skills are important. We'll start with a 3 month contract, and if it goes well, I'd love to bring you on longer term with more hours. Hours • 15 to 16 hours a week, ideally spread across 4 days, or 3 days of 5 hours. I'm happy to negotiate a schedule that works for you, as long as it balances app support with product development • A 15 minute call on each day you work, plus a short written update at the end of each session What you'll be doing • Deploying and supporting our apps (dev and production) • Handling merchant support tickets • Fixing bugs and monitoring errors • Building improvements based on my requests and merchant feedback • Keeping Shopify API versions and dependencies up to date • Building prototypes for new app ideas (not Shopify apps) What you'll need • Experience building Shopify apps (public App Store apps preferred, please share links) • Familiarity with Shopify APIs, including the Admin GraphQL API • Node.js and TypeScript with React Router or Remix • React and Polaris • Prisma and PostgreSQL • Hosting and deployment on Vercel • Fluent written and spoken English, and you let me know early when something's not right Nice to have • PHP with Laravel • Hosting and deployment on Heroku • Shopify Functions, theme app extensions and web pixels How it works • Short video call • Willingness to sign a non disclosure agreement and deed of confidentiality before starting • A 3 month contract at 15 to 16 hours a week, with the first week focused on getting set up and a starter task • Review at 3 months, with the option to move to a longer term role with same or more hours To apply, please send 1. A link to a Shopify app you've built 2. A real example of something you've built that had to handle a failure or edge case. What did you do, what worked, and what wouldn't have worked? 3. How you use AI tools in your work and how you check what they produce