Mitsufumi Kikyotani is a Staff Software Engineer based in Melbourne with 8 years of experience building cloud-native backend systems using Go, TypeScript, Python and Java. He has led teams and delivery at Deloitte and scaled platforms at Airwallex, designing Kafka-integrated Go services, real-time notification systems, and robust observability with Datadog. Comfortable across AWS/GCP, Kubernetes, Terraform/CDK and GitOps, he combines hands-on coding with infrastructure automation to shrink release times and improve reliability. An active contributor to open-source tooling, he fixed content-type handling and improved test coverage in the widely used express-openapi-validator project, showing attention to interoperability and edge cases. Trained in statistical political science and economics, he brings a data-minded approach to problem solving and mentoring engineers.
8 years of coding experience
9 years of employment as a software developer
Economics, Economics at California state university eastbay
Bachelor's degree, Statistical Political Science, Bachelor's degree, Statistical Political Science at Waseda University
🦋 Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.1.x or 3.0.x specification
Role in this project:
Back-end Developer
Contributions:7 commits, 1 PR, 2 comments in 1 day
Contributions summary:Mitsufumi primarily focused on improving the functionality and compatibility of the `express-openapi-validator` library. They addressed a bug related to character sets in the Content-Type header, enhancing the library's ability to handle diverse content types. The user also added test routes and improved test coverage. Furthermore, they ensured the library's compatibility with various content types beyond just JSON.
Contributions:1 release, 39 PRs, 75 pushes in 1 year 5 months
testingrelease-please
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Mitsufumi Kikyotani - Staff Software Engineer at Airwallex