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Yanyang Jiang

@yanyangjiang

Technical manager at Coupang who led logistics supply-chain engineering and built an A-share and Hong Kong stock screening platform.

China

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What I'm looking for

I'm seeking a Technical Manager, Senior Java Development Engineer, or Technical Expert role.

At Coupang, I led engineering delivery for logistics supply-chain modules covering packing recommendations and fresh bag returns. I defined SLI/SLOs for critical paths and chaired daily Operations Reviews.

I also worked on Coupang’s risk-control and membership systems. For fraud detection, I designed and implemented a scalable framework for real-time risk-variable computation, while helping move detection from batch processing to streaming.

In my independent projects, I built a Python financial data platform for A-share and Hong Kong market data, quantitative screening, and HTML reports generated from natural-language company queries. I also explored cross-border e-commerce as a Shopee seller, processing more than 500 orders.

Experience

Work history, roles, and key accomplishments

Independent E-commerce & Financial Data & Quant Screening System

Freelance / Independent Projects

Sep 2025 - Jun 2026 (9 months)

Explored cross-border e-commerce as an independent Shopee seller, processing 500+ orders and validating the full operational loop. Designed and built a full-stack financial data platform in Python for A-share and Hong Kong market data, and extended an open-source agent framework to generate HTML financial reports.

Python PostgreSQL SQLAlchemy Tushare Akshare Yfinance Jinja2 Plotly NodeJS Express OpenClaw AI Agents Quantitative Analysis Ecommerce Shopee Data Engineering REST APIs Caching Cron Feishu Unit Testing Integration Testing

Engineering Manager (Packing Recommendation & Fresh Bag Returns)

Coupang

Jan 2022 - Aug 2025 (3 years 7 months)

Led the engineering team and managed business delivery for core modules of the logistics supply chain. Defined SLI/SLO for critical paths, built automated incident escalation, and recruited and promoted team members.

Team Management SLOs OPR Incident Management Logistics Supply Chain Java MySQL Redis Spring Framework JPA Kafka AWS

Hybrid Dev & Management (Wow Membership Management)

Coupang

Jan 2021 - Dec 2022 (1 year 11 months)

Took over the core membership system, refactored code architecture to eliminate historical technical debt, allocated daily R&D tasks, and ensured system stability.

Java MySQL SpringBatch System Refactoring Technical Debt Task Assignment System Stability

Software Development Engineer (Risk Control System)

Coupang

Jun 2016 - Dec 2021 (5 years 6 months)

Responsible for core code development of the risk control variable/factor calculation framework, data service layer, and correlation services. Maintained CDH clusters on a daily basis.