Zhou X.

I build production software end to end — full-stack web applications and the AI automation that runs behind them. One project, one accountable engineer: React frontends, Python backends, PostgreSQL / Supabase, and self-hosted n8n workflows with LLMs wired in. From idea to live product, or from a manual process to a system that runs without you watching. === WHAT I DELIVER === 🚀 Full-Stack Development — SaaS MVPs & Internal Tools → React / Next.js frontends — clean, responsive, maintainable UIs → Python backends (FastAPI / Flask / Django) and Node.js services → PostgreSQL / Supabase, auth, role-based access, multi-tenant data, REST APIs → Admin panels, dashboards and back-office tools that replace spreadsheets and manual ops → Subscription billing, deployment, and iteration with real users — shipped in weeks, not stalled prototypes 🤖 AI Automation Engineering → Self-hosted n8n workflows (Docker / Nginx / Linux) — you own the stack, zero lock-in → AI agents and chatbots for WhatsApp / Telegram / Slack — 24/7 replies, human handoff → RAG knowledge search, lead scoring, summaries — answers and decisions from your actual data → OpenAI / Claude / DeepSeek integrations, cleanly wired into your product and workflows → Zapier → n8n migration, CRM sync (HubSpot / GHL / Airtable), PDF generation, calendar, lead-gen pipelines ⚙️ Production Engineering — The Part Most Builds Skip → Error handling, idempotency, retries and alerting from day one → Workflows that don't crash halfway, even on retries — systems that run at 3am without you → Dockerized deployment, logging, monitoring, and code your team can extend → Self-hosted by default — you own the code, the data, and the infrastructure === HOW I WORK === → Solo by default: you work directly with me — the person who architects and builds your product → Larger scope? I can assemble a small vetted team under my lead — you still get one accountable point of contact → Async-friendly across time zones: clear written updates, working demos, checkpoints at every milestone === WHY WORK WITH ME === ✅ Top Rated: $20K+ earned, 17 jobs, 1,300+ hours on Upwork ✅ One accountable lead: frontend, backend, database, automation, and deployment — from architecture to launch ✅ Both sides of the stack: I build the product and automate the business around it ✅ Production-ready: auth, error handling, retries and alerting from day one — not demos that work once ✅ You own the code and your data — self-hosted by default, no vendor lock-in I work with startups and small businesses that need software done right — a real product, plus the automation that keeps it running. Tell me what you want to build — or what manual process is slowing you down — and I'll outline how I'd take it from idea to launch. 📩 Message me and I'll send you a clear plan.