Sean Nguyen
Senior Software Engineer at TransferWise
Singapore
Summary
👤
Senior🎓
Top SchoolSean Nguyen is a Senior Software Engineer based in Singapore with 11 years’ experience building resilient backend systems in Java, Go, and Ruby on Rails. He has driven measurable impact at scale—cutting service memory footprints by 75% and saving tens of thousands in warehouse operations through custom WMS at honestbee, and eliminating race conditions and batch bottlenecks at PayPal to prevent significant payment loss and accelerate fulfillment. At TransferWise he continues to operate at the intersection of reliability and efficiency, bringing practical decisions about monorepos, service splits, and GraphQL adoption from prior leadership roles. Comfortable both leading small teams through hard deadlines and diving into performance tuning, he combines hands-on engineering with a knack for making high-impact architectural choices. An uncommon detail: he has repeatedly turned batch workflows into queue-driven systems to shave minutes down to seconds in production.
11 years of coding experience
4 years of employment as a software developer
Bachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at Newcastle UniversityBachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at National University of Singapore
English, Vietnamese
Github Skills (24)
cryptocurrency6
elasticsearch5
api5
kibana5
crypto5
nodejs4
sink4
cryptocurrencies4
rest4
rest-api4
aerospike3
trace3
ruby3
kafka2
rails2
Programming languages (4)
Github contributions (5)
seannguyen/domain-seeker
May 2017 - Jun 2021
A small script to find available domains that suit your need.
Contributions:15 pushes, 1 branch in 4 years 2 months
pythondomain-namephpsuittld
seannguyen/coin-tracker
Mar 2017 - Jun 2020
tracker for cryptocurrencies on various exchanges
Contributions:243 commits, 3 PRs, 230 pushes in 3 years 3 months
trackerexchangescryptocryptocurrencycryptocurrencies
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.