Yasuharu Sawada
Software Engineer at Nstock
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolYasuharu Sawada is a Tokyo-based software engineer with 11 years' experience building reliable web and mobile systems, from C++/Cocos2d-x games at CyberAgent to co-founding FOLIO and owning its backend and SRE infrastructure. He blends hands-on backend work in Scala and cloud-native SRE practices—implementing observability with Prometheus, Grafana, Zipkin, and Datadog—with product instincts gained shipping mobile apps and payment/banking integrations like Zengin parsers. As an early-stage SRE at Alp he strengthened billing reliability for a SaaS revenue platform, and he recently contributed backend fixes and SSL handling improvements to the well-known DataDog serverless functions repo. Comfortable across mobile, backend, and infra, he has a research background in software-defined networking from Kyoto University, and a pattern of improving system maintainability through refactoring and better logging. Colleagues rely on him to bridge product needs and operational resilience when taking services from prototype to production.
11 years of coding experience
9 years of employment as a software developer
MS Informatics, Software-Defined Network, MS Informatics, Software-Defined Network at Kyoto UniversityBA Electrical Engineering, 電気電子工, BA Electrical Engineering, 電気電子工 at 京都大学
Chinese, Japanese
Stackoverflow
244reputation
23kreached
15answers
1question
Github Skills (13)
datadog10
aws-lambda10
python10
serverless9
logging9
ssl8
vector6
formatting6
code-translation6
qt6
cocos2d-x6
android6
pointer6
Programming languages (14)
Github contributions (5)
DataDog/datadog-serverless-functions
Aug 2018 - Oct 2018
Repo of AWS Lambda and Azure Functions functions that process streams and send data to Datadog
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits, 2 PRs, 8 comments in 2 months
Contributions summary:Yasuharu primarily focused on modifying AWS Lambda functions to integrate with Datadog. Their work involved fixing bugs, improving logging, and enhancing the connection implementation for Datadog. They refactored code to improve clarity and maintainability, changing global variable names and implementing a class for handling SSL connections. Furthermore, the user's changes included fixing an issue related to setting a default value for metrics.
azure-functionsserverlessaws-lambdastreamsaws
yasuharu519/dotfiles
Nov 2015 - May 2020
Repository for personal dotfiles.
Contributions:7 PRs, 51 pushes, 7 branches in 4 years 6 months
dotfilespersonal-dotfileszsh
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.