Resume

Fyncall - Remote

Multi-tenant AI customer service and commerce platform. Sole author of the AI service and lead backend engineer.

• - Architected a 9-node LangGraph multi-agent graph with an LLM supervisor and 56 AI tools via a dynamic registry
• - Built an early production MCP integration for Shopify Storefront, plus RAGFlow hybrid retrieval and multi-LLM orchestration with failover
• - Engineered the multi-tenant core across 122 data models and 5 services, with row-scoped tenant isolation, JWT, TOTP 2FA, and OAuth2 federation

Builderson Group - Hong Kong (Remote)

Lead technical strategy and forward-deployed delivery for international clients across fintech, AI, IoT, and systems.

• - PayAll: architected the FastAPI backend and a custom LoRaWAN payment protocol with an Ed25519-signed DAG ledger (cumulative-weight consensus) and CEMAC/COBAC compliance
• - Monduo Control: built solo a Windows tri-screen app with a custom IddCx kernel display driver and multi-API GPU interception in C++ and .NET 8
• - MMG Trading: delivered solo a multi-corridor FX back-office (14 corridors, 7-engine FX factory) that matched the client's Excel to 0.01 AED

Wavely - Remote

Self-initiated multi-tenant WhatsApp marketing SaaS, built solo across backend and frontend, live in production.

• - Built 165 endpoints across 27 tenant-isolated tables with JWT auth and Fernet-encrypted credentials
• - Migrated the platform from Twilio to the official Meta WhatsApp Cloud API without breaking the live send path
• - Shipped an async campaign pipeline (Celery, Redis) and a subscription and credit billing engine, with a React 19 admin console

Makan360 - Remote

Solo freelance build for a REGA-licensed Saudi real-estate advisory, live in production.

• - Built a six-locale (2 right-to-left) Next.js 16 / React 19 platform with 7,600+ parity-checked translated strings
• - Engineered a streaming, knowledge-base-grounded AI assistant on Azure OpenAI with per-language prompts and rate limiting
• - Implemented a credibility-first SEO layer with JSON-LD, localized metadata, and Zod-validated lead capture