Resume

Sat, Mar 17, 2018

Japanese resume : https://guitarrapc.github.io/logs/resume/

Please refer linkedIn for the detail.

IKIRU Yoshizaki

• Email : resume@guitarrapc.com
• ID : guitarrapc
• Technical Blog : http://tech.guitarrapc.com
• Twitter : https://twitter.com/guitarrapc_tech
• LinedIn : https://www.linkedin.com/in/ikiru-yoshizaki/
• Wantedly : https://www.wantedly.com/users/35070975
• Github : https://github.com/guitarrapc (39 repositories)
• Github resume : https://resume.github.io/?guitarrapc
• Speakerdeck : https://speakerdeck.com/guitarrapc (10 slides)

Qualifications

• 10 years of C# Game Infrastructure development
  • C# : 5 years
  • PowerShell : 7 years
  • ShellScript : 10 years
  • Ruby, Python, TypeScript, Node.js, Swift, Go
• 5 years of Game Infrastructure Architect
  • AWS : 5 years
  • GCP : 3 years
  • Azure : 4 years
• Web Application Development
  • C#: ASP.NET MVC, SignalR, Owin, ASP.NET Core MVC
  • Python: Flask
• Unity Application Development (VR/MR)
  • Planning/Leading/Develpoment(TechLead) : 1 years
  • HTC VIVE, Oculus, Google Cardboard (iOS/Android), HoloLens
  • C#/Unity
• iOS Application Development
  • Planning : 3 monthes
  • Develpoment : 6 months
  • Swift, TypeScript, Node.js
• Other Experiences
  • CLI Tools (Windows, C#, PowerShell / Linux, Ruby, Python, ShellScript)
  • Windows Application (Win32API, C#/.NET Framework)
  • Git (GitHub)
  • CI (Jenkins/CircleCI/TravisCI/VSTS/AppVeyor/AppCenter)
• Total 10 years experiences of C#, PowerShell, Swift, VB.NET, Ruby, Python, Perl
• 2 years experiences of Team Leading
  • New Project’s Technial Lead, Architecture Lead and Project Management.
  • Existing Project’s Architecture change (ASP.NET MVC -> ASP.NET Core MVC) with Technial Lead, Architecture Lead and Project Management.
• 8 years Non Engineering lead and 7 years expeience of proffesional trainer.
• OSS
  • Multiple C#、PowerShell、Serverless implementations.
  • Github PowerShell Ranking : Worldwide ¹¹⁴⁄₁₃₃₈₁, Japan ¹⁄₉₅ (15 Repositories, 222stars)
  • Github C# Ranking : Worldwide ³¹³⁵⁄₂₂₃₈₈₄, Japan ⁴⁹⁄₁₅₈₄ (8 Repositories, 92stars)
  • http://git-awards.com/users/search?login=guitarrapc

Professional Experience

Grani, Inc. Tokyo Japan. (2013/04〜2018/04)

Responsibility

• Joined early state as an Infrastructure Engineer, promoted to Senior Engineer to lead tech and architecture(VR/MR/Infrastructure).
• Technical architect for game titles, implementation of infrastcture.
• Repoponsibility for Game Service stability.
• Chaging architecture for high traffic game plays and user increasement.
• New technology proposal, discussions, implementation and DevOps.
• Performance tunig for DB/Redis, Query tuning and migration.
• CDN Architecture and deployment.
• Realtime communication with SignalR, gRPC.

Accomplishment

• Valhalla-Gate
  • 2013/April/1～
  • Create Infrastcture from ealy stage.(AWS)
  • Live migration from Linux/PHP to Windows/C#.
  • Live migration of running ASP.NET MVC to ASP.NET Core MVC.
  • Dockernize with ECS. (Windows Server Container/Linux Container)
  • Implement ,onitoring, profiling environment. (NewRelic/BigQuery/SumoLogic/Librato/Jupyter Notebook)
  • Performance tunig for DB/Redis, Query tuning and migration.
  • Multi CDN implementation(Akamai/CloudFront/Fastly)
  • Select Terraform and implementation.
  • Git and CI/CD implementation.
  • Technical Lead for Infrastructure.
• Monsterhunter roar of Cards
  • 2014/Feb/19～2017/Jan/31
  • Architecture and infrastructure implemenation.
  • Websocket chat implementation with SignalR and DynamoDB.
  • Technical Lead for Infrastructure.
• MammonRun
  • 2014/Dec/15～
  • Unity Client/API Server Infrastructure implementation
  • Technical Lead for Infrastructure.
• Black Knight and White Devil
  • 2015～
  • Unity Client/gRPC Server Infrastructure implementation. (AWS/Azure)
  • Bland new monitoring system implementation with Datadog on 1week.
  • Technical Lead for Infrastructure.
• Grani VR Office Tour
  • 2016/9/15～2016/11/8
  • VR Application development for HTC VIVE with Unity.
  • Technical Lead, Project Management.
  • Manage outsource Modeling quality and scheduling.
• Project Sonata
  • 2017/1/20～2017/3/2
  • MR Application development for HoloLens with Unity, and infrastructure implementation(GCP).
  • Serverside implementation with gRPC and Unity (UWP) Application Development.
• Black Knight and White Devil
  • 2017/1/10～
  • VR Application for iOS/Android development, Sound, Movie and infrastructure.
  • Mobile VR Application development with Google Cardboard SDK.
  • Technical Lead, Project Management and Team management for 3D/2D Model artists, Animation artists and Desiners.
• Non published iOS Application
  • 2017/10/1～
  • Application development with Swift4.0.
  • Serverless development with FireStore and CloudFunctions.
  • Implement movie streaming, RTMP+HLS, with Wowza within 5sec latency. (GCE Container)

Container Development

• Prepare Container development environment Windows/Mac/C#.
• CI/CD and containerze development environment. (Amazon ECS)

Serverless Development

• Infrastructure and aplication serverless backend with AWS Lambda/AzureFunctions.
• iOS Application’s Serverless backend with Firestore.

Micros-Fidelio Japan (Current:Oracle) (2008/09〜2013/03)

Responsibility

• Implementation consultant for Hotels and restaurants.
• Customer operation analytics, implement application for the customer, customer trainings and support.

Accomplishment

• Sybase Central DB, SQL Server, Oracle, MySQL.
• Develop Perl application for plugin and batch operation.
• PowerShell automation for phisical servers and batch applications.
• Develop VB.NET application.

Solare Hotels & Resorts (2006/10〜2008/8)

• Reservation supervisor.

Manten Hotel (2004/04〜2006/9)

• 1 year experience of Restaurant staff.
• Convert ti reception staff.