ZhiYong Z.

Top Rated Platform Architect | Next.js / Supabase / Node.js | AI App | AI-Augmented Delivery | 9 Yrs I architect and build the systems that brands and agencies actually run on — multi-tenant SaaS platforms, B2B admin tools, e-commerce, and high-impact Web3D / WebAR experiences. Top Rated on Upwork. 9 years of production work. Most of my agency work is whitelabel and under NDA, so the engagements below are described by architecture and outcome rather than by brand. Happy to walk through technical decisions in detail on a call or in writing. ⚫️ RECENT SENIOR ENGAGEMENTS — Multi-tenant Campaign SaaS Platform. Lead architect + ~92% of commits over six months. A central CMS that programmatically spawns isolated Supabase + GitHub + Vercel deployments per client campaign, with full rollback. 20+ campaigns live on it today. (UK agency, under NDA.) — Wine Club Loyalty Admin. Full-stack admin for a four-surface loyalty platform: CRM, orders, points, gamification, audit log, role-gated access, unified Supabase + Sanity + Klaviyo dashboard. Live in production. (Drinks group, via UK agency.) — Luxury Watch & Jewellery E-commerce. Lead frontend on the foundational Next.js + Sanity build for a UK retailer carrying multiple Swiss luxury watch brands. (Under NDA, via UK agency.) — Tiki3d (Soarscape). Sole developer on a production 3D Gaussian Splatting authoring + playback platform. Browser scene editor, point-cloud measurement, timeline-eased guided tours across 10+ scenes. — Aladia Online Learning (Italy). ~800h on the consumer course experience: detail pages, Stripe checkout, ratings, on-demand + live class flows. 2,000+ registered students. — Consumer Electronics Campaign Platform. Full-stack H5 + serverless with a Unity-to-Web QR bridge. Hit Vercel's in-process FFmpeg limits and pivoted to a managed rendering API in hours. (Global audio brand, via UK agency.) — Sports x FMCG WebAR Activation. Browser-based AR sports mini-game for a beverage brand's football sponsorship, distributed via on-pack QR in APAC. Diagnosed and solved a critical in-app-browser block on iOS at launch. (Under NDA, via UK agency.) — WebAR Brand Activation Rescue. Took over a stalled WebAR build and rebuilt the multi-touch interaction layer in days. 10,000+ players. (Under NDA, via UK agency.) ⚫️ WHAT I DELIVER Multi-tenant SaaS & Platform Engineering Next.js · Supabase · TypeScript · Cloud orchestration (Supabase + GitHub + Vercel APIs with rollback) · RBAC · GDPR · Audit logging For internal platforms, B2B admin tools, agency ops systems, founder-stage SaaS. Full-Stack Web Next.js · React 19 · TypeScript · Node.js · Supabase / Postgres · Sanity · Stripe · Resend · Klaviyo For e-commerce, EdTech, dashboards, complex admin UIs. Interactive Web3D & WebAR Three.js · WebGL · React Three Fiber · PlayCanvas · 3D Gaussian Splatting · WebXR · commercial WebAR platforms For brand activations, product configurators, immersive FMCG / luxury / sports / culture experiences. All three delivered with AI-augmented workflows (Claude Code, Codex, agent harnesses) for faster ramp and tighter iteration loops — without compromising architectural quality. ⚫️ WHY SENIOR BUYERS COME BACK — 9 years shipping production. Every engagement above is live, with agency and client teams running on my code today. — Top Rated on Upwork. — Architect-level decisions, not just execution. I made the calls on multi-tenant data architecture, vendor pivots under deadline, legacy-ERP scraping, and rescue situations. That's the work that decides whether your platform is maintainable in a year. — AI-fluent delivery. Claude Code, Codex, and agent harnesses are part of my daily stack. I build reusable skill packs and tune harness configurations for multi-tenant scaffolding, legacy codebase exploration, and PR review. Architecture decisions stay mine; the tools compress execution, not judgment. — NDA-disciplined. I work whitelabel for agencies and treat client confidentiality as a delivery requirement, not an afterthought. Your work stays yours, and it stays off my portfolio unless you tell me otherwise. — Async-first. Written specs, daily updates, Loom walkthroughs at every milestone. No scheduled calls required for most projects. — Cross-cultural delivery. UK, US, Italian, and Chinese clients with clear written English documentation. ⚫️ HOW I WORK Free 30-min written feasibility analysis. Send me your brief, codebase, or half-built project, and within 24h I'll respond with timeline, key risks, and recommended approach. Milestone-based delivery with live preview links and Loom walkthroughs. AI tooling on your terms. If you have constraints on what tools touch your codebase (IP, compliance, NDA), we agree up front. Default is Claude Code / Codex with your repo; fully manual when projects require it. Clean handover. Full docs, repo access, deployment guides at end. No lock-in. Your code is yours from day one. Have a SaaS or internal tool that needs an architect?