Yukihiko Sawanobori
代表社員 at HiganWorks LLC
Kobe, Hyogo Prefecture, Japan
Summary
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RockstarYukihiko Sawanobori is a seasoned DevOps and backend engineer with 13 years of experience building and automating infrastructure and cloud services from Kobe, Japan. As founder/partner at HiganWorks and OpsRock, he blends hands-on system engineering with business leadership, focusing on reliable, testable server environments. He is an active open-source contributor to prominent projects such as Chef, Ohai, and serverspec, with notable work supporting SmartOS/Joyent and improving package and service providers. His contributions to fog (SakuraCloud) and ngx_mruby demonstrate deep expertise in cloud APIs, build systems, and nginx extension mechanisms. Comfortable across scripting, Ruby tooling, and low-level platform integrations, he often surfaces pragmatic fixes that improve testing and deployability in heterogeneous environments.
13 years of coding experience
Japanese
Github Skills (33)
package-management10
apidoc10
scripting10
oai10
testing10
configuration-management10
ruby10
smartos10
chef-client10
automation10
script10
api10
solaris10
build-automation10
sh10
Programming languages (15)
Github contributions (5)
matsumotory/ngx_mruby
May 2016 - May 2022
ngx_mruby - A Fast and Memory-Efficient Web Server Extension Mechanism Using Scripting Language mruby for nginx
Role in this project:
DevOps Engineer & Backend Developer
DevOps Engineer & Backend DeveloperContributions:4 releases, 97 commits, 55 PRs in 6 years 1 month
Contributions summary:Yukihiko contributed to the ngx_mruby project by implementing and testing dynamic module builds for nginx. They modified build scripts and configurations to support dynamic module loading, improving the flexibility of the nginx extension. They also worked on integrating mruby-redis and ensured content-length checks after filter operations. Their commits suggest expertise in build systems, scripting, and backend server extension development.
nginxmechanismmemoryscriptingweb-server
mizzy/specinfra
Apr 2014 - Mar 2021
Command Execution Framework for serverspec, itamae and so on
Role in this project:Back-end Developer
Back-end DeveloperContributions:29 commits, 14 PRs, 25 pushes in 7 years
Contributions summary:Yukihiko primarily focused on enhancing the `get_package_version` functionality within the `smartos.rb` command module, suggesting a specialization in system administration or package management. Their contributions involved refining the command to accurately retrieve package versions and incorporating the `escape` function for security. Furthermore, the user implemented a configuration option to skip sending environment variables in ssh sessions and addressed an OS detection failure.
test-kitchenserverspecrubyserveritamae
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