Based in Singapore

Eugene Wu

Staff Software Engineer
ByteDance · International Payment Infrastructure

distributed systems payment infra global stability data center Singapore

About Me

I'm a Staff Software Engineer at ByteDance, where I own the global stability of international payment infrastructure and lead data center construction across multiple regions. My work sits at the intersection of reliability engineering and financial systems — keeping payments flowing at scale, across borders, around the clock.

Before ByteDance, I spent time at Ant Group architecting cross-border payment systems for Alipay International's European expansion (the Miravia project), and building high-concurrency financial messaging infrastructure at ANEXT Bank — handling SWIFT, MEPS, FAST, and PAYNOW protocols.

Earlier in my career at Citibank, I built microservice execution platforms for equity and FX trading, and managed end-to-end releases for a team of 30. I'm drawn to systems where correctness and reliability aren't optional.

Outside of work, I build products. Play United started as a side project in 2019 and now serves 30K+ users on iOS and Android.

locationSingapore
currentByteDance
focusInfra / Payments
educationNTU CS
languagesEN / ZH

Work History

Aug 2023 – Present
Staff Software Engineer
ByteDance · International Payment Infra

Responsible for global stability of ByteDance's international payment systems and leading data center construction across regions. Focused on cross-region failover, resilience engineering, and infrastructure scalability for high-volume payment workloads.

distributed systems data center global stability Java infra
Nov 2021 – Aug 2023
Senior Software Engineer
Ant Group · Alipay International & ANEXT Bank

Architect for Miravia cross-border payment system (3,000 man-days, team of 5). Designed the acquiring domain including multi-microservices architecture for payment, refund, fund back, chargeback, and merchant settlement. At ANEXT Bank, owned Fluxnet (SWIFT/MEPS/FAST/PAYNOW channel integration) and Opengw (high-performance gateway for financial institutions).

Spring Boot RocketMQ OceanBase microservices SWIFT PAYNOW
Jul 2019 – Nov 2021
Software Engineer
Citibank N.A. · Equity & FX

Developed microservice-based execution platform for Equity OneRisk. Built data reconciliation tooling and automated standard procedures, reducing operational risk by 35%. Release manager for FX STIRT — coordinating developers, QA, and support for a team of 30 across end-to-end releases.

Java Couchbase Solace MQ microservices
Jan 2019 – Jun 2019
Software Engineer
SAP Asia

Contributed to SAP Mobile Development Kit — frontend (iOS/Android) and backend (TypeScript/Node.js). Bug fixing and new reusable features for metadata-driven native mobile applications.

TypeScript NativeScript iOS Android

Side Projects

Play United

React Native app for Play United customers, staff, and admins. Online payments, inventory & stock management, token dispenser integration, loyalty points, location-based staff attendance, HR payroll, and real-time reporting.

30K+ users iOS & Android 2019 – present
React Native MongoDB Express AWS
Spa Management System

Web application for Sante Wellness with facial login, invoice management, and booking management. Built to streamline operations end-to-end for wellness businesses.

2019
React Express MongoDB Azure

Tech Stack

Backend
Java Spring Boot Node.js Python C#
Frontend
React React Native TypeScript JavaScript
Databases
MySQL MongoDB OceanBase Couchbase
Messaging
RocketMQ Solace MQ SWIFT MEPS FAST PAYNOW
Cloud
AWS Alibaba Cloud Azure
Domain
payments distributed sys fintech infra global stability

Let's Connect

Open to conversations about payment systems, infrastructure, and distributed systems engineering.