Xianwen Chen

CTO & Co-Founder, Netaro

17+ years shipping products end-to-end — backend, frontend, iOS, Android. Former Staff Engineer at Airbnb, previously Dropbox and RingCentral. Tsinghua University CS. Founded WriteTutor.ai in 2025.

Now building Netaro as founding CTO — a cross-border payments platform enabling businesses to move funds globally, faster and cheaper than traditional rails.

What I've Built

Netaro

Integrated Fireblocks, Circle, Coins.ph, and Persona into a unified system spanning transfers, treasury, KYC/AML, and fiat on/off ramps. Enterprise-grade infrastructure with bank-level security, pursuing SOC 2 compliance. Preparing for launch.

Visit site →

WriteTutor.ai

Built an AI-powered writing tutor for kids. Took it from zero to paying customers as a solo founder — product, engineering, design, and go-to-market.

Visit site →

AI-Powered Test Generation

Built a fully automated unit test generation pipeline using LangChain, OpenAI, and Claude at Airbnb. Generated tests outperformed tools like Copilot Chat.

6.7x iOS Build Acceleration

Cut iOS full build times from 33 to 5 minutes at Airbnb. Improved incremental builds by 50%. Saved thousands of engineering hours. Open-sourced as BuckSample.

GitHub →

iOS CI Migration to AWS

Technical lead for end-to-end migration of 300+ Mac CI machines to AWS EC2 at Airbnb. Designed the system topology with Terraform. Reduced macOS upgrade time from weeks to hours. Zero incidents.

Airbnb Engineering Blog →

Top 10 in App Store

Built Password Manager, an iOS app that reached the overall top 10 in Apple's App Store in 3 countries. 700k+ downloads across all my iOS apps before acquisition in 2013.

Skills

Payments & Crypto System Architecture Infrastructure Engineering AI/ML Systems
Backend Systems Mobile Development CI/CD AWS Terraform LangChain & LangGraph

Career

Dec 2025 – Present CTO & Co-Founder · Netaro
Apr – Nov 2025 Founder · WriteTutor.ai
2019 – 2025 Staff Software Engineer · Airbnb iOS Platform
2016 – 2019 Software Engineer · Dropbox Mobile Platform
2013 – 2015 Senior iOS Engineer → Mobile Platform Team Lead · RingCentral
2008 – 2013 Engineer → Technical Lead · Baidu, NetDragon, and startups

Education

2004 – 2008 B.S. Computer Software · Tsinghua University, Beijing