HIRING: iOS Engineer in Japan (No Japanese Required)
If you’re an iOS engineer looking for a role in Japan where you can work in English, use a modern Swift stack, and take real ownership of a product, this position is worth a look.
This opportunity is with a leading Japanese B2B SaaS and cloud security company developing enterprise identity and access-management products used by more than 2.8 million users.
You’ll join the team responsible for its iOS applications and work across the full development lifecycle, from technical design and architecture through development, testing, release, and ongoing improvement.
The role is based in Shibuya, Tokyo, offers a salary of ¥8M–¥10.5M, and Japanese is not required.
Quick Role Overview
| Position | Mobile (iOS) Engineer |
| Industry | B2B SaaS / Cloud Security |
| Location | Shibuya, Tokyo |
| Salary | ¥8M–¥10.5M annually |
| Experience | 3+ years of professional iOS development |
| Primary Technology | Swift 6 / SwiftUI |
| Language | English required; Japanese not required |
| Employment | Permanent |
| Work Style | Flexible hours / Hybrid |
| Core Hours | 11:00–16:00 |
| Office Attendance | Typically around twice per week |
What Does a Mobile iOS Engineer Do in This Role?
At a basic level, you’ll develop and maintain iOS applications used by enterprise customers to securely access cloud services.
But this isn’t simply a role where you receive specifications and implement screens.
You’ll be expected to take ownership of features from beginning to end.
That can include:
Understanding product requirements
Designing the technical solution
Breaking work into development tasks
Building features in Swift and SwiftUI
Writing and maintaining automated tests
Reviewing code
Managing releases
Monitoring applications after deployment
Improving architecture and removing legacy dependencies
You’ll work closely with backend, infrastructure, product, design, and customer-facing teams throughout the process.
What Will You Be Building?
The mobile team works on two main types of applications.
A Secure Enterprise Browser
One of the products is a secure mobile browser designed for companies that need more control over how employees access cloud services.
Administrators can apply restrictions based on factors such as authentication status, company policies, and access rules.
From an engineering perspective, this means working on areas such as:
Secure authentication
Enterprise access controls
Web application compatibility
WKWebView
Native-to-JavaScript communication
Cloud integrations
Security policies
Application performance and reliability
Because the browser is used within enterprise environments, changes need to be carefully designed and tested.
A Mobile Authentication Application
You’ll also work on a mobile authentication application used for secure login and push-based authentication.
This involves integrating the iOS application with cloud and identity systems while making sure authentication remains reliable and secure.
That can include technologies and concepts such as:
OIDC
MFA
Identity and Access Management
Push authentication
REST APIs
Client-server communication
You don’t need to be a security specialist before joining, but experience or interest in authentication and cloud security is useful.
What Is the Tech Stack?
The core iOS environment includes:
Swift 6
SwiftUI
Xcode
App Store Connect
WKWebView
JavaScript
REST APIs
AWS
CI/CD
Automated testing
You'll also be involved in improving the development environment itself.
For example, the team is modernizing parts of the mobile architecture and gradually replacing legacy dependencies.
That could include projects such as migrating dependency management from CocoaPods to Swift Package Manager, improving CI/CD pipelines, or strengthening automated testing.
What Makes This Role Different From a Typical iOS Position?
One of the biggest differences is the amount of technical ownership.
In some mobile engineering roles, the product or architecture decisions are made elsewhere and engineers mainly focus on implementation.
Here, you’re expected to contribute to technical decisions yourself.
You may be involved in:
Architecture discussions
Technical design
Code reviews
Release strategy
CI/CD improvements
Application monitoring
Migration planning
Engineering standards
The team operates with a high level of autonomy, so engineers have meaningful input into how the products are built.
What Experience Do You Need?
The main requirement is at least 3 years of professional iOS development experience.
You should also have experience developing production applications with SwiftUI.
You’ll ideally be comfortable with:
Swift and SwiftUI
Production mobile application development
Xcode
App Store Connect
Client-server communication
REST APIs
CI/CD
Automated testing
Code reviews
Technical documentation
Clean-code practices
The team is also looking for someone who can take ownership rather than waiting for every technical decision to be made for them.
Experience leading technical projects or mentoring junior engineers is therefore useful.
What Experience Is Nice to Have?
You don’t need all of the following, but they can make your background particularly relevant:
Large-scale iOS application development
B2B SaaS products
Enterprise software
App Store release management
TestFlight
Fastlane
CircleCI
WKWebView
Native-to-JavaScript bridging
Mobile observability
Application debugging
OIDC
MFA
Identity and Access Management
Web security
Android code review
Open-source contributions
Experience working on applications where security, reliability, or enterprise requirements are important is especially transferable.
Do You Need Japanese?
No.
Japanese is not required for this position.
English is the main working language within the engineering environment, and the wider team includes members from more than 20 countries.
You should be able to communicate professionally in English during:
Technical discussions
Code reviews
Planning meetings
Architecture discussions
Cross-team collaboration
The expected English level is approximately CEFR B2 or above.
For international engineers who want to build a career in Japan but don’t yet speak business-level Japanese, this is one of the major advantages of the role.
What Is the Engineering Culture Like?
The company has a strong engineering-led culture.
Its CEO comes from an engineering background and remains closely involved with technology and product development.
That has helped create an environment where areas such as the following receive significant attention:
Technical quality
Architecture
Maintainability
Engineering processes
Continuous improvement
Developer autonomy
Engineering teams are encouraged to contribute to decisions rather than simply execute requirements.
If you enjoy discussing why something should be built a certain way, this environment will likely suit you.
Who Would Be a Good Fit for This Role?
This position could suit you particularly well if you:
Have 3+ years of professional iOS experience
Have built production applications using SwiftUI
Enjoy taking ownership of features
Want to contribute to architecture and technical decisions
Are interested in cloud security or identity products
Want to work in an international engineering environment
Want to work in Japan without needing Japanese
Prefer product development over short-term project work
Enjoy improving existing systems as well as building new features
It may be especially attractive if you want to move from being mainly an implementation-focused engineer toward a role with broader technical responsibility.
Salary and Working Conditions
Salary
The annual salary range is:
¥8M–¥10.5M
The final offer depends on your experience and assessment during the hiring process.
Additional benefits can include:
Language allowances
Employee stock ownership plan
Transportation allowance
Technical certification support
Learning and development support
Domestic and international conference participation
Visa sponsorship
Relocation assistance
Japanese language support
Working Hours
The company operates a flexible working-hours system.
Core hours are:
11:00–16:00
Employees generally work eight hours per day, plus a one-hour break.
Work Location
The role is based in:
Shibuya, Tokyo
The work style is hybrid, with employees typically coming into the office around twice per week.
Can You Apply From Overseas?
Yes.
The company hires international engineers and provides relocation support for eligible candidates.
Support can include:
Visa sponsorship
Flight support
Relocation assistance
Japanese lessons
Onboarding support
This makes the role accessible to engineers who are currently living outside Japan as well as those already based here.
What Is the Interview Process?
The hiring process typically follows these stages:
CV review
Take-home iOS coding assessment
Casual interview with HR
Two or three technical interviews with engineers
Final interview
You should expect the process to assess more than just coding ability.
Because this role involves technical ownership, interviewers will also want to understand how you approach:
Technical design
Architecture
Debugging
Code quality
Collaboration
Problem solving
Decision making
Why Is This Position Interesting?
There are a few things that make this opportunity stand out.
First, you’ll be working on production applications supporting millions of users, rather than an early-stage product with limited usage.
Second, the role gives you ownership beyond coding. You can contribute to architecture, deployment, testing, and engineering processes.
Third, you'll be working on technically challenging products where areas such as authentication, security, reliability, and cloud integration are central to the product itself.
And finally, for international engineers, you can build your career in Tokyo in an environment where English is the working language and Japanese is not required.
Salary and Working Conditions
The expected annual salary range is:
¥7 million – ¥12 million
Final compensation depends on your experience, technical ability, and current salary.
The position is primarily office-based, so this is an important consideration if you are specifically looking for a fully remote engineering role.
Standard working hours are 9:30–18:30.
Frequently Asked Questions
Do I need Japanese to apply?
No. Japanese is not required.
You’ll need professional English communication skills, approximately CEFR B2 level or above.
How many years of iOS experience do I need?
The minimum requirement is approximately 3 years of professional iOS development experience.
Experience with production applications using SwiftUI is particularly important.
Do I need professional security experience?
No.
Security experience can help, but it isn’t a strict requirement.
An interest in areas such as authentication, cloud security, OIDC, MFA, or Identity and Access Management will be useful.
Do I need SwiftUI experience?
Yes.
The team specifically looks for engineers with professional experience developing production applications using SwiftUI.
Is this mainly a coding role?
Coding is a major part of the position, but the role goes beyond implementation.
You’ll also contribute to architecture, technical design, code reviews, CI/CD, releases, debugging, and other engineering decisions.
Is the role remote?
No. It is a hybrid position based in Tokyo.
Employees typically work from the Shibuya office around twice per week.
Can I apply if I live outside Japan?
Yes.
International applications are welcome, and visa sponsorship and relocation support are available for eligible candidates.
What is the salary?
The salary range is approximately:
¥8M–¥10.5M per year
Additional allowances and benefits may also apply.
Is this a management position?
No. This is primarily an individual contributor role.
However, you’ll be expected to take ownership of technical initiatives, contribute to architecture decisions, and potentially mentor less experienced engineers.
What should I expect from the coding assessment?
The hiring process includes a take-home iOS coding assessment.
You should expect the evaluation to look at not only whether your code works, but also factors such as structure, maintainability, testing, and the technical decisions you make.
