Sean K.

I’m a full-stack developer based in Manchester. I plan, build, repair, and maintain production web platforms from the database and infrastructure through to the user interface. My main stack is Nuxt 4, Vue, Supabase, PostgreSQL, Node.js, and Vercel. I designed and built a complete platform for my own business on this stack, including the architecture, backend, frontend, database, security, and production deployment. The platform handles bookings, payments, customer accounts, a custom CMS, secure files, automated emails, and a live video classroom with a realtime collaborative whiteboard. It also runs automated post-class workflows for lesson files, transcription, reporting, and controlled recording access. I built the native iOS app against the same backend and took it through TestFlight and Apple’s review process. I also plan and build systems for clients. Recent work includes a custom WordPress ticketing platform for a live events company that previously had no reliable way to track ticket sales, capacity, deposits, payments, attendees, receipts, or waivers. I mapped the business workflows, designed the data structure, integrated Stripe, and released the system in stages without interrupting active sales. I regularly work with: • Nuxt, Vue, Supabase, PostgreSQL, Node.js, and Vercel • WordPress, PHP, MySQL, Oxygen Builder, and WooCommerce • Stripe payments, deposits, webhooks, reconciliation, and refunds • Authentication, Row-Level Security, secure links, and private files • Realtime systems, video, transactional email, cron jobs, and AI transcription • SwiftUI, TestFlight, and App Store submission • Existing platforms that are incomplete, unreliable, or difficult to maintain Because I run production systems myself, I also handle the less visible work: database migrations, security reviews, failed webhooks, payment discrepancies, deployment problems, scheduled jobs, data cleanup, and restoring services after failures. I take projects from unclear business requirements to a practical technical plan, working software, testing, deployment, and continued maintenance.