About

@soranoba (in Japan)
Software developer – Erlang, Objective-C, Swift, etc…

    
Please contact me by twitter

Professional Experience

DWANGO Co.,Ltd. Programmer — April 2014 – August 2018

Built VoD and Live broadcast delivery system
  • A full mesh cluster for Erlang with 100 nodes or more.
  • Designed and implemented many parts of delivery function.
  • Implemented multiplexing of audio and video, and conversion of movie container or streaming protocol in real time at deliver.
    • Supported to ISO-BMFF and FLV as video container formats, and HLS and RTMP as streaming protocols.
    • Many of the RTMP parts are not my implementation.
  • Initial designed and implemented of auto scaling, rebuild and failover of distribution tree.
  • Implemented of deployment tools which support to hot code update with Ansible, rpm, and relx.
  • Erlang, RabbitMQ, Ansible, etc…
Built a library for iOS of playing VoD and Live for iOS, which contained authentication
  • Designed of the library and implemented many parts.
  • Designed and implemented caching data and update of authenticate information with AVAssetResourceLoader.
  • Designed and implemented many tasks triggered by operation of AVPlayer.
  • Objective-C, Cocoapods, AVFoundation etc…
Maintained a iOS application, playing VoD and Live.
  • Introduced an integration using Fastlane and Jenkins.
  • Introduced an automatic generated error code.
  • Designed and implemented API clients, which support mocks for Swift.
  • Implemented part of at significant renewal of the UI.
  • Swift, Objective-C, GoogleAnalytics, etc…
Mainained a server application for the iOS application.
  • PHP, Java, etc…

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