Ohyama Hiroyasu
Software Engineer Team Leader at DMM.com Group
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolOhyama Hiroyasu is a Tokyo-based Software Engineer Team Leader with 13 years of experience building reliable backend systems, DevOps services, and software infrastructure. He leads engineering teams at DMM.com Group while remaining a hands-on developer who contributes to open-source projects like MongoEngine and RabbitMQ, notably implementing ordered document support and practical STOMP examples. His work on StackStorm improved automation reliability through schema validation and comprehensive sensor tests, reflecting a strong focus on correctness and operational robustness. With a master's in computer science from Tsukuba University, he combines academic rigor with production-grade engineering. Colleagues appreciate that he pairs team-building and knowledge-sharing (documented in company articles and presentations) with a knack for fixing subtle data-handling and integration issues.
13 years of coding experience
11 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at 筑波大学
Github Skills (43)
schema-validation10
restructuredtext10
stomp10
messaging10
python10
json-schema10
api-design10
testing10
validation10
mongodb-database10
ruby10
rabbitmq10
json-validation10
orm10
aws10
Programming languages (10)
Github contributions (5)
StackStorm/st2docs
Jan 2017 - Mar 2019
StackStorm Documentation.
Role in this project:
Technical Writer
Technical WriterContributions:10 commits, 7 PRs, 1 comment in 2 years 1 month
Contributions summary:Ohyama's contributions primarily involve documentation updates and improvements within the StackStorm documentation repository. They modified the copyright information, added descriptions for parsing CLI parameters, fixed typos in existing documentation pages, and replaced specific product names with macros for consistency. These changes enhance the clarity, accuracy, and maintainability of the documentation.
stackstorm
StackStorm/st2
Dec 2016 - Apr 2019
StackStorm (aka "IFTTT for Ops") is event-driven automation for auto-remediation, incident responses, troubleshooting, deployments, and more for DevOps and SREs. Includes rules engine, workflow, 160 integration packs with 6000+ actions (see https://exchange.stackstorm.org) and ChatOps. Installer at https://docs.stackstorm.com/install/index.html
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:25 commits, 15 PRs, 42 comments in 2 years 4 months
Contributions summary:Ohyama primarily focused on enhancing the stability and reliability of the StackStorm project. Their contributions involved implementing and testing a function to validate the payload format against trigger schemas, ensuring data integrity. They also added comprehensive unit tests for sensor services, demonstrating a commitment to thorough testing practices. Furthermore, they corrected the implementation of array transformers to accurately parse the data of actions based on the action metadata, reinforcing their role in improving the software's functional correctness.
chatopsauto-remediationpythonexchangeevent-driven
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