HQ: Tokyo, Japan · Team Communication & Collaboration · Est. 2004 · Hiring 2, 1 new
kubell is the Tokyo company behind Chatwork, one of the most widely used business messaging services in Japan. Its platform combines chat, task management and file sharing for small and medium companies, and the group has added back office outsourcing services. The company renamed itself from Chatwork to kubell in 2024 as it broadened beyond messaging.
No named decision-maker yet.
No careers mailbox known
In office (Tokyo, Japan) · Full-Time
Swift
Swift
Swift Concurrency
Databases
Snowflake
AI/ML
Claude Code
Frontend
GraphQL
Mobile
SwiftUI
Combine
MVVM
Realm
Firebase
XCTest
Crashlytics
DevOps
GitHub Actions
GitHub
Rest API
CI/CD
Design
Figma
Management
Miro
Confluence
QA
TestRail
+12
Tokyo · Job Boards & Aggregators · Freelance & Talent Marketplaces · 51-200 employees · Est. 1970 · Hiring 6, 1 new
CrowdWorks develops and operates Japan's largest crowdsourcing platform, CrowdWorks, and other online human-resources matching services that connect companies and individual workers. Its platform facilitates remote freelancing and task-based work and, as of the end of September 2021, had 4.7 million users and 760,000 clients and is used by more than 80 local governments and government-related organizations including the Cabinet Office and Ministry of Economy, Trade and Industry. CrowdWorks serves businesses, government agencies and independent professionals across Japan and has been listed on the Tokyo Stock Exchange Mothers market since 2014 (ticker 3900).
No named decision-maker yet.
Careers mailbox is known
$32k – $48k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Java
Java
RxJava
Gradle
Kotlin
Kotlin Coroutines
KSP
Mobile
Jetpack Compose
Realm
Room
Firebase
Fastlane
Deep Linking
ProGuard
Firebase App Distribution
DevOps
CircleCI
GitHub Actions
CI/CD
+9
HQ: Tokyo, Japan · Books · Blogging & Newsletter Platforms · Likely startup · Hiring 6
Teller Novel is a Japanese online fiction platform and entertainment IP company where users read and write novels for free. The platform hosts more than five million works for over six million readers, the company also runs the vertical short drama service Teller Drama and AI character products, and it hires Go, ML and LLM engineers, product managers and a CFO. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
$44k – $63k per year · In office (Tokyo, Japan)
TypeScript
JavaScript
AI/ML
Claude
Frontend
Next.js
Storybook
React.js
Mobile
React Native
Firebase
Expo
DevOps
gRPC
GitHub Actions
GitHub
+4
HQ: Tokyo, Japan · Digital Government · Trust C · Hiring 29
GovTech Tokyo is a foundation that drives the digital transformation of the Tokyo Metropolitan Government and the municipalities of Tokyo. It develops official Tokyo apps and a generative AI platform and leads cybersecurity support for 62 local governments, hiring security consultants, security engineers and corporate IT engineers. The foundation is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
$32k – $49k per year · In office (Tokyo, Japan)
Claude Code
Mobile
MVVM
Clean Architecture
MVP
DevOps
Rest API
gRPC
$41k – $62k per year · In office (Tokyo, Japan)
Rest API
Cybersecurity
OWASP
HQ: Tokyo, Japan · Baby Products · Marketplaces · Est. 2014 · Hiring 2
KIDSLINE is a Tokyo marketplace company founded in 2014 that books babysitters and childcare online. Its platform vets sitters and handles scheduling and payment, and it distributes heavily through employer childcare benefits. The company operates across Japan.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago
3 months ago
Long shot · 10%
iOSアプリエンジニア
In office (Tokyo, Japan) · Full-Time
Swift
Swift
RxSwift
Alamofire
Mobile
UIKit
SwiftUI
MVVM
Bitrise
DevOps
GitHub
Design
Figma
+1
HQ: Tokyo, Japan · E-commerce Platforms · Likely startup · Trust D · Hiring 23
Kauche is a Japanese e-commerce startup whose shopping app combines social buying with games such as Kauche Farm, where crops grown in the app can be received as real products. The app passed 7 million downloads in July 2026 with heavy daily use, and the company hires principal mobile and backend engineers, product managers, QA engineers and a chief data officer. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
≈ $45k – $123k per year (Estimated) · Lead · In office (Tokyo, Japan) · Full-Time · Staff
Kotlin
Swift
Databases
Firestore
Google BigQuery
Google Cloud Spanner
AI/ML
Gemini
OpenAI Codex
Cursor
Claude
Copilot
LLM
Mobile
Jetpack Compose
SwiftUI
MVVM
Crashlytics
Bitrise
DevOps
gRPC
Google Cloud Run
GitHub Actions
GitHub
Terraform
GCP
CI/CD
Analytics
Looker
Design
Figma
+17
$34k – $51k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Databases
Firestore
Google BigQuery
Google Cloud Spanner
AI/ML
Gemini
OpenAI Codex
Cursor
Claude
Copilot
LLM
Mobile
Jetpack Compose
SwiftUI
MVVM
Crashlytics
Bitrise
DevOps
gRPC
Google Cloud Run
GitHub Actions
GitHub
Terraform
GCP
CI/CD
Analytics
Looker
Design
Figma
+17
$46k – $99k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Databases
Firestore
Google BigQuery
Google Cloud Spanner
AI/ML
Gemini
OpenAI Codex
Cursor
Claude
Copilot
LLM
Mobile
Jetpack Compose
SwiftUI
MVVM
Crashlytics
Bitrise
DevOps
gRPC
Google Cloud Run
GitHub Actions
GitHub
Terraform
GCP
CI/CD
Analytics
Looker
Design
Figma
+17
HQ: Tokyo, Japan · Streaming & OTT Platforms · Creator & Fan Platforms · Likely startup · Trust B · Hiring 6
OPENREC is a Japanese entertainment platform company that runs mellow-fan, formerly OPENREC.tv, a service connecting fans with creators. The platform offers fan communities, original shows, live events and merchandise, built on its own low-latency live streaming infrastructure supporting around 300,000 concurrent viewers. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
HQ: Chiyoda, Japan · Books · Streaming & OTT Platforms · Est. 2013 · Trust B · Hiring 6
MechaComic is a Japanese digital content company that runs the e-comic distribution service Mecha Comic for mobile phones and smartphones. Established in October 2013, it is preparing for a future IPO and hires backend, native app and cloud engineers, data scientists, UI and UX designers and legal staff. The company is headquartered in Chiyoda, Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
AI/ML
Claude
Mobile
Jetpack Compose
SwiftUI
DevOps
GitHub
Design
Figma
HQ: Kanazawa, Japan · Cloud Consulting & Migration · Enterprise Apps Implementation Partners · IT Consulting & Digital Transformation · Custom Software Development · 1001-5000 employees · Trust D · Hiring 102
System Support is a Japanese IT services company headquartered in Kanazawa, Ishikawa, that provides IT consulting, system design and development, cloud integration and operations support built around AI and cloud platforms. Part of the listed System Support Holdings group, it implements ServiceNow, SAP, Oracle, Snowflake, Microsoft Azure, AWS and Google Cloud solutions, sells its own products such as Smart Generative Chat and a public SaaS vacant-house database used by municipalities, and has offices in Tokyo, Nagoya and Osaka. It hires cloud, infrastructure, data platform, backend and frontend engineers, ServiceNow consultants and project managers, ERP engineers and security engineers.
No named decision-maker yet.
No careers mailbox known
$342k – $494k per year · In office (Tokyo, Japan) · Full-Time
Java
Python
DevOps
AWS
Management
ServiceNow
$418k – $836k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
DevOps
AWS
Management
ServiceNow
$350k – $684k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
DevOps
AWS
Management
ServiceNow
HQ: Tokyo, Japan · Likely startup · Trust D · Hiring 20
No named decision-maker yet.
No careers mailbox known
$51k – $76k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Swift
Swift Concurrency
AI/ML
Cursor
Claude Code
Mobile
Jetpack Compose
UIKit
SwiftUI
Combine
Firebase
CocoaPods
DevOps
GitHub Actions
GitHub
CI/CD
Design
Figma
Management
Confluence
+8
$38k – $57k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
AI/ML
Claude Code
Mobile
Jetpack Compose
DevOps
GitHub Actions
GitHub
Design
Figma
Likely inactiveVerified live · 2 hours ago
3 years ago
Long shot · 2%
ソフトウェアエンジニア（iOS）
$38k per year · In office (Tokyo, Japan) · Full-Time
Swift
Swift
Swift Concurrency
AI/ML
Cursor
Claude Code
Mobile
UIKit
SwiftUI
Combine
Firebase
CocoaPods
DevOps
GitHub Actions
GitHub
CI/CD
Design
Figma
Management
Confluence
+6
HQ: Tokyo, Japan · Media & Entertainment · Mobile Games · Streaming & OTT Platforms · Likely startup · Trust D · Hiring 18
Mirrativ operates Mirrativ, a Japanese smartphone-first live streaming platform focused on mobile games and avatar-based creators. The platform lets users broadcast gameplay directly from a smartphone and offers integrated avatar creation, real-time voice changing and interactive features so creators can stream without a PC or capture hardware. Mirrativ is the leading mobile game streaming and avatar (VTuber/virtual-being) platform in Japan, serving a large community of streamers and mobile gaming viewers.
No named decision-maker yet.
Careers mailbox is known
In office (Tokyo, Japan) · Internship
Kotlin
Swift
Perl
C#
Mobile
Jetpack Compose
SwiftUI
Clean Architecture
Likely inactiveVerified live · 2 hours ago
2 years ago
Long shot · 2%
iOSエンジニア
In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Perl
C#
Swift
SwiftLint
Databases
Google BigQuery
Mobile
MVVM
VIPER
Clean Architecture
Fastlane
Bitrise
DevOps
CI/CD
Game Dev
Unity
Analytics
Looker
+6
Likely inactiveVerified live · 2 hours ago
2 years ago
Long shot · 2%
Androidエンジニア
In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Perl
C#
Databases
Google BigQuery
Mobile
MVVM
VIPER
Clean Architecture
Fastlane
Bitrise
DevOps
CI/CD
Game Dev
Unity
Analytics
Looker
+5
HQ: Tokyo, Japan · IT Consulting & Digital Transformation · Machine Learning · 51-200 employees · Startup · Trust B · Hiring 6
Zen Intelligence is a Japanese startup that applies physical AI to core industries, starting with construction. Its B2B SaaS product zenshot captures and processes 3D images of building sites, it is launching zenshot AI for enterprises, and it hires full stack and ML and computer vision engineers, designers, customer success and deployment leads. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
Careers mailbox is known
Open 136 daysVerified live · 1 hour ago
4 months ago
Long shot · 6%
モバイルエンジニア
In office (Tokyo, Japan, 10am - 7pm)
Kotlin
TypeScript
Python
JavaScript
Databases
PostgreSQL
Frontend
React.js
Mobile
React Native
Expo
DevOps
GitHub
AWS
Wi-Fi
Design
Figma
Management
Miro
+5
HQ: Chūō, Japan · Collectibles & Trading Cards · 1-10 employees · Est. 2023 · Startup · Trust B · Hiring 8
Japan Trading Card Center (JTCC) is a Japanese startup that runs one of the largest online trading card pack services in Japan. It combines trading cards and technology in an e-commerce platform that brings Japanese pop culture abroad, including expanding overseas shipping, and hires senior mobile, full stack and SRE engineers, product managers, product designers and data analysts. The company is headquartered in Chūō, Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
In office (Tokyo, Japan, 10am - 7pm) · Full-Time
Kotlin
Dart
Swift
Dart
Riverpod
Bloc
AI/ML
Cursor
Model Context Protocol
Claude Code
Claude
LLM
LangChain
RAG
Mobile
Flutter
Firebase
Fastlane
Crashlytics
TestFlight
Core ML
ML Kit
DevOps
Vercel
Datadog
GitHub Actions
GitHub
GCP
CI/CD
AWS
+18
HQ: Tokyo, Japan · PC Games · Mobile Games · Trust D · Hiring 26
TENDA Games is a Japanese game developer that creates consumer games and entertainment for the Web3 era. It belongs to the Tenda Group, an AI and digital transformation company, which hires new graduate engineers, IT consulting sales staff and web developers in Tokyo and Sendai. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
$343k – $459k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Java
Dart
Mobile
Flutter
HQ: Tokyo, Japan · Digital Marketing · Advertising · Trust B · Hiring 5
GRAND is a Japanese advertising startup founded by University of Tokyo students that runs an office building media network. Its displays are installed at about 8,000 locations, mainly in large office buildings in Tokyo, it has raised over 2 billion yen, and it hires sales staff, frontend, server-side and Android engineers and graphic designers. The company is headquartered in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 147 daysVerified live · 4 hours ago
4 months ago
Long shot · 5%
Androidエンジニア
In office (Tokyo, Japan) · Full-Time
HQ: Tokyo, Japan · Sales Enablement · CRM Software · Likely startup · Trust D · Hiring 16
UPWARD provides a Sales Engagement Platform with a mobile application that uses precise positioning technology to automatically detect and record field sales activity data. Its platform is installed in over 300 companies and transforms individual customer contact data into company-wide assets while deriving optimized insights for sales teams. UPWARD accelerates strategic and timely sales planning by recommending targets and plotting accumulated customer profiles and interaction data on maps so salespeople know whom to approach and how to engage them.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago
5 months ago
Long shot · 4%
【122】モバイルアプリエンジニア
$32k – $76k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
JavaScript
Kotlin
Hilt
Dagger
AI/ML
Gemini
Google AI Studio
Claude
Copilot
Frontend
Apollo Client
GraphQL
Mobile
Jetpack Compose
Room
Firebase
XCTest
WorkManager
Crashlytics
CallKit
Bitrise
DevOps
CircleCI
GitHub
Design
Figma
+14
HQ: Tokyo, Japan · Streaming & OTT Platforms · Mobile Games · 11-50 employees · Trust B · Hiring 6
AnotherBall is a Tokyo-based entertainment startup. We build Avvy — the app that lets anyone become a VTuber in 1 minute with a custom avatar — and anime studio Mayflower. We're hiring.
No named decision-maker yet.
No careers mailbox known
Open 164 daysVerified live · 4 hours ago
5 months ago
Long shot · 6%
iOSエンジニア
$32k – $70k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Swift
Swift
Swift Concurrency
Mobile
SwiftUI
Combine
MVVM
Firebase
Kotlin Multiplatform
Fastlane
AppsFlyer SDK
DevOps
GitHub Actions
GitHub
CI/CD
Game Dev
Unity
+6
Open 164 daysVerified live · 4 hours ago
5 months ago
Long shot · 6%
Androidエンジニア
$32k – $70k per year · In office (Tokyo, Japan) · Full-Time
Kotlin
Mobile
Jetpack Compose
MVVM
Kotlin Multiplatform
Firebase
DevOps
GitHub
HQ: Osaka, Japan · E-commerce Platforms · POS Systems · Trust D · Hiring 66
Smaregi is an Osaka-based software company that develops Smaregi, a cloud point-of-sale system for iPad and iPhone used by retailers and restaurants, together with related cloud services for e-commerce, time and attendance and store management. The company is listed on the Tokyo Stock Exchange, runs development and sales offices in Osaka, Tokyo, Fukuoka and Fukui, and has set a goal of becoming the top POS provider in Japan by 2031. It hires web, iOS and Android engineers, infrastructure and security engineers, UI/UX and web designers, art directors, project managers and customer success staff, including fully remote contract roles.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 1 hour ago
5 months ago
Long shot · 4%
Androidエンジニア（東京）
$25k – $51k per year · In office (Tokyo, Japan) · Full-Time
PHP
Mobile
MVVM
MVP
DevOps
GitLab CI
GitLab
Git
HQ: Tokyo, Japan · POS Systems · Trust B · Hiring 5
Ubiregi is a Japanese pioneer of iPad-based SaaS point-of-sale systems with the concept that simple is best, aiming to become the data infrastructure of the service industry. Its job ads cover frontend, infrastructure and SRE engineers, an iOS engineer and an enterprise project leader. The company is based in Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
Open 181 daysVerified live · 1 hour ago
6 months ago
Long shot · 4%
iOSエンジニア
In office (Tokyo, Japan) · Full-Time
Objective-C
Swift
Swift
Swift Concurrency
AI/ML
Cursor
Claude Code
Copilot
Mobile
UIKit
SwiftUI
Firebase
CocoaPods
XCTest
Bitrise
Swift Testing
DevOps
GitHub
CI/CD
Management
Miro
+8
HQ: Tokyo, Japan · Custom Software Development · Likely startup · Trust D · Hiring 13
Mantra Labs builds enterprise products, platforms, data flows, and intelligent workflows that help teams modernize systems and improve operating outcomes.
No named decision-maker yet.
Careers mailbox is known
$38k – $57k per year · Hybrid (Tokyo, Japan) · Full-Time · English: C1 · Japanese
Python
AI/ML
Machine Learning
DevOps
GitHub
Git
GCP
AWS
