iOS/SwiftUI · Python/FastAPI · Multi-agent AI systems — 12 years shipping apps. Shenzhen, China (UTC+8, flexible overlap with US/EU hours).
- 📱 iOS apps — SwiftUI/UIKit, from MVP to App Store submission (I've shipped apps to both CN and US storefronts, solo, end to end)
- 🐍 Backends & data pipelines — Python/FastAPI, async, SQLite/Postgres, deployment & monitoring
- 🤖 AI agents & LLM integrations — multi-agent pipelines (LangGraph-style), tool use, RAG, prompt engineering at production scale
- 🌐 Web & cross-platform — TypeScript, WeChat Mini Programs, landing pages
| App | Store | What it is |
|---|---|---|
| 深研 DeepInsight | 🇨🇳 CN App Store | AI multi-agent stock research — SwiftUI + FastAPI + 13-agent pipeline, IAP subscriptions |
| StockAgents | 🇺🇸 US App Store | Global edition — same codebase, dual-target, independent listing |
50+ PRs across 7 major repos (36k–375k stars). 13 merged, 10 in review. All found, root-caused, fixed and tested by me.
| Repo | Stars | Merged PRs | Open PRs |
|---|---|---|---|
| Vibe-Trading (HKUDS) | 36k | 12 — data loaders, backtest engine, agent runtime refactors | — |
| OpenMontage | 71k | 1 — video path bugfix | — |
| TradingAgents | 113k | — | 5 |
| rea | 375k | — | 3 |
| ComfyUI · scrapy · litellm | 62k–142k | — | 1 each |
Previously: iOS engineer on apps that served tens of millions of users (fitness, fintech).
iOS · Python backend · AI agent development — zigenhan@gmail.com