Lee Teong Hoe (Mr Hoelee)
Full-Stack Developer · Production DevOps · AI Systems Architect (Malaysia, GMT+8)
Open to remote / hybrid engineering roles.
I build, ship, and operate production web systems from the application code down to the bare metal and Linux kernel. 162 containers across three self-managed hosts run client applications, an enterprise mail platform (SifuMail), CI/CD pipelines, and deterministic AI workflows. Every engineering post on this site is backed by real production telemetry.
By the numbers
How We Can Work Together
Choose the path that matches what you are looking for:
Custom Web Systems, AI Automation & Self-Hosted Infrastructure
Stop losing night-time leads or overpaying for fragmented per-seat SaaS tools. I build turnkey websites, automated customer pipelines, and private infrastructure that reduce headcount overhead.
What I Deliver:
- 24/7 AI Customer & Sales Bots: Telegram & WhatsApp agents connected to your live catalogue, CRM, and automated trial/order provisioning.
- Business Process Automation: End-to-end workflows (n8n, NocoDB, custom webhooks) that eliminate manual data entry and file delivery.
- High-Conversion Web & Mail Systems: Custom websites, WordPress deep engineering, and reliable enterprise email hosting (SifuMail).
- SaaS-to-Self-Hosted Migration: Cut recurring cloud bills by deploying secure, private open-source alternatives on dedicated infrastructure.
How Engagements Work:
- 15-Min Discovery: Send your bottleneck via WhatsApp/Email.
- Architecture & Fixed Quote: Clear scope, ROI estimate, and timeline.
- Build & Production Handover: Tested deployment with full ownership.
Full-Stack, DevOps & AI Systems Engineering Roles
Open to high-impact remote or hybrid roles where owning the entire lifecycle — from TypeScript/backend logic to Docker, reverse proxies, and LLM reliability — matters.
Why Bring Me onto Your Team:
- End-to-End Ownership: I don't throw code over the wall to ops. I write the application, configure the CI/CD runner, secure the ingress gate, and debug kernel OOM kills when traffic spikes.
- Pragmatic AI Engineering: I wrap LLMs inside deterministic state machines, strict payload contracts, and unit-tested retrieval — preventing hallucinations in production.
- Evidence-Based Debugging: Whether it's a silent CDP click failure, a double-ingress Forward-Auth bypass, or a cgroup memory ceiling, I verify root causes before shipping fixes.
- Bilingual Documentation Habit: Native-level technical communication in English and Mandarin (中文), with a strong culture of written runbooks and post-mortems.
Selected Proof-of-Work:
What I Actually Run in Production
Infrastructure & DevOps
Docker, Traefik, Cloudflare Tunnels, Authentik SSO, Gitea Actions CI/CD, Nginx, Prometheus, Grafana, Synology DSM, Unraid, Linux Kernel/Cgroup Tuning.
AI Agents & Automation
LiteLLM Gateway, Mem0 (PostgreSQL + pgvector), n8n Workflows, Telegram/WhatsApp Bots (grammY), Chrome DevTools Protocol (CDP), Local GPU Whisper/TTS, Remotion.
Backend & Systems Architecture
TypeScript (Node.js/Hono), Python, PHP (CodeIgniter/WordPress Core), Java (Spring), PostgreSQL, NocoDB, REST Webhook Contracts & Idempotent State Machines.
Frontend, Web & Digital Delivery
Astro 5, React, Vue, Technical SEO & GEO (Generative Engine Optimization), Bilingual i18n Architecture, Pagefind, Mailcow / SifuMail Enterprise Hosting.
My Engineering Guardrails
Never trust a raw prompt with pricing, permissions, or payments. I isolate deterministic business flows in code and use AI strictly for semantic understanding.
"I restarted it and it works" is not root-cause analysis. Every fix is verified against kernel logs, cgroup metrics, or automated regression tests.
By gluing battle-tested open-source components onto self-managed hardware, I help businesses avoid $500+/month SaaS sprawl without sacrificing uptime.
