---
title: "PlayKeyboard"
description: "iOS Engineer"
canonical: https://portfolio.skyline23.com/en/works/playkeyboard
language: en
content-signal: ai-train=no, search=yes, ai-input=yes
---

# PlayKeyboard

> iOS Engineer

## Overview

Multi-year iOS keyboard engineering spanning product launches, extension performance, architecture modernization, CI/CD, and measurable conversion improvements.

## Highlights

- Raised keyboard stability from the low 60% range to 98-99% with PinLayout and FlexLayout.
- Shipped a web-input flicker mitigation and resource-conscious keyboard features.
- Introduced Swift Concurrency, Combine, OneWay, and Pure DI while reducing legacy dependencies.
- Improved build speed by 20% and delivered flows that increased activation and purchase conversion.

## Metadata

- Type: Work experience
- Category: Work
- Years: 2022 - 2023 - 2024
- Stack: UIKit, SwiftUI, Keyboard, iOS

## Language versions

- [EN](https://portfolio.skyline23.com/en/works/playkeyboard/index.md) · [KO](https://portfolio.skyline23.com/ko/works/playkeyboard/index.md) · [JA](https://portfolio.skyline23.com/ja/works/playkeyboard/index.md)

- [Portfolio index](https://portfolio.skyline23.com/en/index.md)