Ted Kassen
Backend Engineer at PayPay Corporation
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolTed Kassen is a backend engineer with 11 years of experience building reliable, scalable services across fintech, streaming, and consumer apps, currently contributing at PayPay in Tokyo. Comfortable across Clojure, Elixir, Go and the cloud, he has owned payment transfer systems, merch platforms serving tens of thousands of storefronts, and full-stack event apps while operating infrastructure with Terraform, ECS and CI/CD pipelines. He brings hands-on leadership from early prototyping through production, having led small teams and shipped popular Twitch extensions and mission-critical money-movement services. A self-described Clojure enthusiast and prolific tinkerer (github.com/bunker-inspector), Ted blends practical systems design with a playful curiosity that surfaces in thoughtful tooling and toy projects.
11 years of coding experience
7 years of employment as a software developer
Master’s Degree, Computer Science, Master’s Degree, Computer Science at San Diego State University
Japanese, English
Github Skills (77)
ecosystem10
golang10
ecto10
filter10
docker10
rust9
complement9
rocksdb9
pagination9
key-value9
moby9
assemble9
raspberry9
container9
go9
Programming languages (8)
Github contributions (5)
bunker-inspector/gourmet
Nov 2019 - May 2022
Contributions:20 commits, 36 pushes, 1 branch in 2 years 6 months
bunker-inspector/rs_taskflow
Apr 2019 - Oct 2020
Contributions:23 commits, 25 pushes, 1 branch in 1 year 5 months
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.