NGHIA LUONG

iOS/macOS Engineer

SIDE PROJECTS

JOB EXPERIENCES

Senior iOS Engineer @Automattic (Tumblr & Day One)

Remote | Jul, 2022 - Apr, 2025

Tumblr

  • Successfully merged 2 networking modules, which is projected to reduce app size and improve launch time.
  • Participated in the Swift migration project by migrating 2 key modules to Swift, reducing 9% of Objective-C codebase.
  • Classified Core Data operations (insert/update/remove), resulting in an 8% reduction in Main thread congestion.

Day One

  • Enhanced the Paywall experience for users at device limits, resulting in a 12% uplift in premium upgrade conversions.
  • Implemented App Center integration for streamlined prototype distribution via QR code, reducing internal testing time by 31%. This enabled team members to install prototype apps via QR code without needing Xcode building.
  • Benchmarked key app metrics including app hang detection, slow response areas, and energy consumption. Identified several scenarios contributing to hang rate.
  • Ensured team Xcode compatibility by proactively addressing issues with new Xcode versions, minimizing development disruptions.
  • Migrated to a more stable version of the Stripe SDK, resulting in 5% increase in successful payment completions.
  • Collaborated within the AI squad to implement features including entry summaries, multi-entry summaries, and image caption generation.
  • Utilized Cursor AI and Claude chatbot to accelerate development tasks such as code generation and debugging.

Senior iOS Engineer @LINE

Ho Chi Minh, Vietnam | Aug, 2021 - Jul, 2022

  • Collaborated closely with the team to enhance the quality and user experience of the chat app serving 200 million active users.
  • Responsible for Chat list experiences, worked on a project that improved the smoothness by 8%
  • Actively participated in knowledge sharing and internal learning initiatives to foster team growth and expertise.

Senior iOS Engineer @National Australia Bank

Ho Chi Minh, Vietnam | Sep, 2020 - Aug, 2021

  • Contributed to the development and maintenance of the app serving 9 million users, ensuring high reliability and performance.
  • Collaborated within an Agile/Scrum team to translate client requirements into implementable user stories.
  • Improved product quality through thorough code reviews and the development of effective unit and UI tests.
  • Served as a first-round interviewer in the hiring process.

iOS Tech Lead @Planday

Copenhagen, Denmark | Oct, 2013 - Jul, 2020

  • Responsible for Technology decisions in the team
  • Develop an app with 300k users, rating 4.3 on AppStore
  • Setup and work with Bitrise as a CI/CD system
  • Work and support team working with Scrum process
  • Part of the interview process: being an interviewer

CERTIFICATE

Professional Scrum Master 1
From Dec 2018, no end date