Hiroki Toyokawa
Senior Developer Support Engineer at Okta
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolHiroki Toyokawa is a Senior Developer Support Engineer with 13 years of software engineering and people-management experience, currently providing high-level identity and access management support at Okta (Auth0) from Tokyo. He combines an MS in Computer Science with hands-on coding—authoring the astro-notion-blog and contributing backend fixes to well-known Ruby projects like zendesk_api_client_rb and i18n-tasks—to bridge product engineering and customer outcomes. Recognized as a FY2026 Q4 “CSAT All Star,” Hiroki excels at diagnosing complex production issues, building internal tooling and automations, and quantifying support impact with data-driven insights. His background includes leading engineering teams at Mixi and scaling support operations at Autify, giving him a rare mix of leadership, developer empathy, and operational rigor. Comfortable communicating across cultures, he enjoys distilling intricate technical problems into actionable solutions and empowers teams through knowledge sharing.
13 years of coding experience
8 years of employment as a software developer
修士（情報システム）, 修士（情報システム） at 奈良先端科学技術大学院大学
Github Skills (25)
notion-api10
static-analysis10
rails-i18n10
apidoc10
css10
rspec10
typescript10
zendesk10
ruby10
notion10
regular-expression10
api10
ember-i18n10
typescript-types10
astrojs10
Programming languages (9)
Github contributions (5)
otoyo/astro-notion-blog
Jan 2023 - Mar 2023
🚀 Begin building your very own Notion Blog with Astro.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:17 releases, 17 reviews, 363 commits in 2 months
Contributions summary:Hiroki primarily focused on building the foundational aspects of a blog application using Astro and integrating it with Notion. Their contributions involved setting up essential server-side components, including server-constants, and defining interfaces for posts and other data structures. They also defined the styles and layout of the blog and implemented a Notion client to interact with the Notion API.
cmsnotionastrocloudflarenotion-blog
zendesk/zendesk_api_client_rb
Sep 2017 - Nov 2017
Official Ruby Zendesk API Client
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 commits, 7 PRs, 17 comments in 2 months
Contributions summary:Hiroki primarily focused on improving the Zendesk API client in Ruby. They made changes related to batch updates, specifically addressing the `update_many` endpoint. This included modifying the implementation of the `update_many!` method and adjusting the associated specs to ensure the functionality of the API client. Additionally, they made code refinements, including fixing a bug in a spec file and logging response bodies for debugging purposes.
api-clientapizendeskrubyzendesk-api
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.