SHAWN BAEK

+65-8751-7471
LinkedIn | GitHub
Blog
[email protected]

PROFESSIONAL SUMMARY

Dedicated iOS Engineer with exceptional problem-solving skills, API design expertise, and a robust UX foundation (6 years as a UX Engineer). Effective communicator and collaborative professional, adept at swiftly grasping new knowledge. Specializes in app architecture, user-facing UI development, specification (Requirement Analysis and Documentation), and iOS app performance tuning.

• Large Scale Mobile App Development
• Proficient in Object-Oriented Programming (OOP) Design
• Optimizing iOS App Performance
• High Quality UI Development (SwiftUI+UIKit)
• Unit Test (TDD), UI Test and Snapshot Test
• Deep knowledge of Objective-C and Swift

TECH STACKS

• Swift, Objective-C, Javascript, SwiftUI, iOS Development, Server-Side Swift, AWS, EC2, RDS, Cloud9, PostgreSQL, Core Data, Core Animation, Core Location, App Architecture, Clean Architecture, RxSwift, Combine

PROFESSIONAL EXPERIENCE

99 Group | 99.co (Singapore), PropTech iOS App, Mobile Lead + Senior iOS Engineer

Aug 2021 – June 2024

Product: 99.co iOS App (2nd most used Real Estate App in Singapore)

• Managing a regional team of 5 mobile engineers (iOS and Android)
• Achieved a remarkable 99.5% crash-free rate
• Improved Developer Experience:
  • Reduced build time by modularizing app using SPM from 0 module to 14 modules
  • Simplified git branch strategy
  • Implemented CICD using XcodeCloud, XcodeGen
• Delivered high quality services:
  • New Launch Project
  • Agent Tool
  • Smart Video Creation using AVFoundation

LINE FINANCIAL PLUS (Korea), Senior iOS Engineer

July 2018 – July 2021

Worked with over 100 iOS Engineers on products including LINE Messenger, LINE PAY iOS App, LINE Good Partners (No. 1 in Japan, Taiwan and Thailand)

• Led financial services development, including SplitBill, E-KYC, and UI modules for LINE Messenger and Pay iOS app
• Analyzed, optimized, and improved the codebase, reducing scrolling hitch count from 6 to 2 by improving rendering performance

SAMSUNG ELECTRONICS (Korea), UX Engineer Level 4

July 2012 – June 2018

• One Samsung Project - Content Management System, Design System for Android, Web and Smart TV
• Smart TV Prototypes using Swift
• Future Galaxy Preloaded Android Apps - Contact App, Photo App, and Content Sharing App
• Computer Vision based Multi-Touch Gesture SDK using C++

SAMSUNG ELECTRONICS (Korea), Software Engineer Intern, Scholarship

July 2008 – June 2012

EDUCATION

Masters of Computer Science, Yonsei University (Seoul, South Korea)

July 2010 – July 2012

Research Area: Computer vision based Human Computer Interaction and Augmented Reality (OpenCV, C++)

Bachelors of Computer Engineering, Tech University of Korea (South Korea)

Mar 2003 – July 2010

PROJECTS

• Travelcrumb iOS app: Travel Expense Tracker (CoreData, CloudKit, Swift Server - Vapor, SwiftUI)
• Table: A helper function to print tables, inspired by JavaScript's console.table

PRESENTATIONS

• letswift 2019 (Seoul, Korea): "Behind the scene of delightful experience using Core Animation" (Slide)
• LINE Fintech Summer 2021 Conference: "Integrating Apple Combine Framework Into the LINE Good Partners"

PATENTS

EP3306546A4: User terminal device, terminal for payment, and method and system for payment using said user terminal device and terminal for payment (1st Inventor)

Leetcode