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Name and Contact

Qualifications

I started iOS application development when I was a high school student, and I have focused on iOS application area for about 10 years. I have not only iOS experiences, but also backend and web frontend experiences. I'm good at both conducting quick PoCs and diving into huge codebases.

  • Natural languages: Japanese (native), English (business level)
  • Focusing area: iOS, Swift, SwiftUI, Software Architectures
  • Other skills: Firebase, Fastlane, Golang, CI/CD, Git, GitHub
  • Experienced rolls: Architect, Team Lead, Scrum Master

Work Experiences

SmartNews, Inc. (2022/08 ~ Present)

Software Engineer (Individual Contributor, iOS Lead) - Fulltime (2023/02 ~ Present)

  • Working in a team about news reader foundation
  • Conducting several PoCs with a new client architecture developed by me and project structure
  • Leading iOS members in the team and facilitating development activities

Software Engineer (Individual Contributor) - Fulltime (2022/08 ~ 2023/02)

  • Worked on iOS application with Swift/Objective-C and UIKit
  • Worked in a team about first-time user experience
  • Implemented a new onboarding and introduction flow
  • Refactored several features to make it more testable
  • Facilitated several team activities like dogfooding session and documentation

Mercari, Inc. (2018/08 ~ 2022/08)

Software Engineer (Architect) - Fulltime (2020/04 ~ 2022/08)

  • Worked in client architect team
  • Maintained iOS project infrastructure, improving build time, updating iOS SDK and Xcode
  • Implemented internal libraries like Feature Flag client, Logging client, etc
  • Workd on tech experiments about SwiftUI and Combine
  • Revamped their iOS application with SwiftUI and Combine framework from scratch
  • Led iOS members and collaborated several teams
  • Interviewed students and mid-career candidates (with English)

Software Engineer (Tech Lead) - Fulltime (2019/10 ~ 2020/03)

  • Worked in a team about new business creation
  • Led and implemented new search features related to fashion items
  • Conducted several PoCs with PM to confirm feasibility
  • Conducted several scrum events and improved team productivity

Software Engineer (Individual Contributor) - Fulltime (2019/07 ~ 2019/09)

  • Worked in teams about customer experience improvement and new users acquisition
  • Led and implemented new flow of registration sequence
  • Conducted several scrum events and improved team productivity

Software Engineer Internship (2018/08 ~ 2019/02)

  • Rearchitectured their iOS app with MVVM architecture and Flux style store
  • Worked on overall UI changes for integrating financial functionality (Merpay)
  • Rearchtectured whole developer menu functionality

NOT A HOTEL (2021/11 ~ 2022/03)

iOS App Developer - Subcontractor

  • Conducted PoC about 3D object interactions
  • Worked on iOS application with SwiftUI and Combine framework
  • The Comopsable Architecture (a.k.a. TCA) was used as basic architecture

Cland, Inc. - A company about Japanese Sake (2020/5 ~ 2021/1)

iOS App Developer - Subcontractor

  • Developed iOS application with Swift and UIKit (App: camo)
  • Used PromiseKit framework for asynchorous processing
  • Only 2 iOS Engineers attended at that time, and I focued on business logics and UI implementations.

3-shake (2018/05 ~ 2018/07)

Software Engineer - Subcontractor

  • Worked on data pipeline service implementations (Service Name: Reckoner)
  • Implemented backend software by Golang
  • Implemented web frontend site by Javascript with React framework
  • Integrated several data sources into their data pipeline service

Education

Tokyo Institute of Technology, Tokyo - Japan, Graduated in 2018, Computer Science