Senior Front-End Web Application Developer for Custom Shopify Slot Machine Feature

The Pearler Girl Shirt Machine™ Turn shirt shopping into entertainment. I am looking for an experienced front-end web application developer with Shopify experience to build the signature feature of my fashion website. This is not a standard Shopify website project and not a graphic design project. The goal is to build a realistic vintage-style slot machine where customers pull a working lever (on both desktop and mobile), the reels spin like a real mechanical slot machine with authentic movement, sounds and lighting, and three random shirts from my Shopify catalogue are revealed. Customers can then KEEP one, two or all three shirts, select their preferred fabric and size for each shirt, and add them to their cart. The shirts are manufactured and drop shipped by Contrado, so the feature must integrate seamlessly with Shopify products, variants, checkout and the Contrado fulfilment workflow. A full detailed technical specification is attached: Pearler Girl Shirt Machine Technical Specification & Developer Proposal Brief Version 1.0 Please read the attached document carefully before applying. ⸻ Stage 1 – Initial Technical Review (US$200 Fixed Fee) I am not awarding the full development project immediately. The purpose of Stage 1 is to find the right long-term technical partner. The successful applicant will: * Read and review the attached technical specification. * Recommend the best technical approach. * Identify any potential issues or improvements. * Prepare a detailed proposal outlining how the project should be built. * Provide estimated costs and timeframes for the remaining phases. If we are both happy to proceed, the project will continue with: * Phase 1: Functional Shirt Machine * Phase 2: Jackpot animations, pearl fireworks, rewards, discounts, social sharing and future features. * Ongoing support and future development. ⸻ Please Include In Your Proposal * Examples of similar interactive web applications you have personally built. * A brief explanation of how you would approach this project. * Estimated cost for Phase 1. * Estimated cost for Phase 2. * Estimated timeframe. * Confirmation that you are available for ongoing support after launch. ⸻ What I’m Looking For I’m not simply looking for someone to build a feature and disappear. I’m looking for a long-term technical partner who enjoys solving interesting problems and takes pride in building something unique. Communication, honesty and reliability are just as important to me as technical ability. If we work well together, there will be ongoing opportunities to continue developing the Pearler Girl website as the brand grows. ⸻ Important To confirm you have read both this job post and the attached technical specification, please begin your proposal with the words: Pearls Before Breakfast Applications that do not begin with these words will not be considered. Concept artwork and additional visual references will only be supplied to shortlisted applicants.