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Android Engineer

Job ID: #

This is an Android Developer position for the app “SpeakBuddy”

Annual Income:7 million yen〜12 million yen

【What you’ll do】

・Design (architecture), develop, test, and deliver SpeakBuddy app

・Support the members inside and outside Android team

・Work with design, backend, iOS, growth & other teams

・Check, discuss, and install new & useful libraries / technologies

・Find and fix bugs from analytics tools or/and testing

【What you’ll have】

・Be part of developing an AI app that will change the industry

・You will  engage a frontend position, so you can get feedback directly from users

・No matter where you're from you can be part of a diverse team

・You can develop using the latest architecture and library like Compose, Material3, Modularization 

・Our CEO has development experience and wants to create an engineer friendly environment

【Tech stack & environment】

Language: Kotlin

IDE: Android Studio

Architecture: App Architecture (MVVM), Clean Architecture, Modularization

DI: Hilt

Kotlin: Flow, Coroutine, Serialization

Design: In-house design on Compose Material3 (Moving from Material2)

Other Tools: GitHub Actions, Firebase Crashlytics, Jira / Confluence, Slack, Figma, AWS

【Selection Flow】

Casual Interview(Online)

Coding Test

Formal Interview 2 Times(Online)

Reference Check

Final Interview(Offline)

【Nice to have】

・Experience developing a in-house product or having equivalent ownership mindset

・Experience releasing an app on Google Play Console 

・Experience of the latest Android development (Jetpack Compose, Kotlinx, etc)

・Knowledge and experience of a feature / app / system with voice recognition

・Knowledge and experience of UI testing

・Strong knowledge of Material Design (Material 3, especially)  

・Business level conversational Japanese

【Ideal Candidate】

・Loves learning new things

・Keen on both UI / UX and architecture / business logic

・Has a strong interest in English or/and other language education & learning

・Enjoys a rapidly changing environment

・A good communicator

Work Location:Nihonbashi 1-chome Mitsui Bldg. 5F, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 

Remote work also available.

Work System:

The work schedule is to arrive at the office between 8:00 and 11:00 and then work 9 hours.

*There is a one-hour break in between.

Trial Period: 3 months


Commuting Allowance

Health Insurance

Employee Pension Insurance

Unemployment Insurance

Workers' Accident Compensation Insurance


Speak Buddy


Tokyo, Japan or Remote

Company Size:

30-60 Employees

Job Type:

Full Time


26 Oct 2023


・3+ years of Android & Kotlin development, or equivalent skills

・Experience or understandings of App Architecture, MVVM, and unit testings

・Experience troubleshooting complex applications and data structure

・Knowledge and understanding about testing

・Business level English language proficiency 

・Motivation to learn Japanese (current Japanese skill is not required)

Apply Now 

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