Tech Lead - iOS Engineer
- Remote OK - Anywhere in Japan
- Full-time
- September 1, 2025
Job Details
Our team consists of many engineers who pursue " cutting-edge technology" to develop brand new services (iOS/Android apps and web services). We have both planning and technical expertise, and we take charge of everything from planning to the development of creative projects using O2O, machine learning recommendations, video streaming, and other technologies.
In a nutshell
You will be responsible for developing new web services and smartphone apps that are not yet available in the world and lead the delivery of these services as well as the full lifecycle development phase, taking into account quality and efficiency in development.
As a Tech Lead, You will be involved not only in coding, but also in design and technology segmentation, providing best-practice recommendations to the client.
Tech Stack
- Frontend: TypeScript, Javascript
- Backend: Golang, Ruby, Node.js, Java, PHP
- Mobile: Flutter, Kotlin, Swift
- Frameworks: React, Vue.js, Node.js, Ruby on rails, Laravel, Spring boot
- Public cloud: AWS, Azure, GCP
- Database: RDB, NoSQL
- Project management: JIRA, Confluence, Backlog, Redmine
- Code management: Github
- Communication tools: Slack, Zoom
- Design tools: Figma, Adobe XD, Zeplin, Sketch
What makes us stand out
- Develop products from scratch (0-1) opportunities
- We have delivered more than 2200 projects
- A wide range of technology, including MaaS/ Fin Tech/ IoT/ AI/VR
- A Diverse team
- As a global tech company, we share our knowledge across the world for the best practice.
- Full flex working hours
- You can work from anywhere in Japan
- We offer a variety of career paths based on your goal
Requirements
- At least 3 years of practical experience in iOS application system development in Swift/SwiftUI.
- Experience in developing and operating applications using modern architectures such as RxSwift, MVVM, etc.
- Japanese conversational skills
Nice to have
- Flutter (Dart) or Kotlin application development experience
- Familiarity with development environments such as CI and/or test automation and demonstrated experience in implementing improvements to these environments
- Firebase (A/B Testing / App Distribution / Remote Config / Dynamic Links) experience
- Familiarity with UnitTest
- Object-oriented design, API design, data structures, fundamental algorithm knowledge
- Business English skills
- Strong teamwork skills
- Development direction experience
- Experience in development with overseas offshore teams
About Monstarlab
Monstarlab’s mission is to harness diversity and transform the world through technology.
Together with their clients, Monstarlab drives digital innovation and supports business transformation through co-creation.
Monstarlab’s services span digital product development, enterprise system development, design, strategy and operations consulting, and AI-driven development — all aimed at enabling client success and accelerating digital transformation.
The company also places great value on empowering each employee to take on new challenges. In a constantly evolving world, Monstarlab employees are encouraged to embrace change, enjoy the process of taking on challenges, and grow through cross-functional collaboration at the individual, team, and organizational levels.
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