Modernization & migration · Japan
Application modernization services in Japan
Detailed specifications, careful testing and reliable schedules, with a team overlapping most of your afternoon.
Clarigo Infotech modernizes and migrates legacy applications so they are secure, fast and easy to change again: PHP upgrades and migrations to modern stacks, Java 8 to Java 17 or 21 with current Spring Boot, .NET Framework to modern .NET, and monoliths split into services where it genuinely helps. We migrate step by step behind a safety net of automated tests, so your business keeps running while the software underneath gets better.
Japanese companies most often hire us for AI automation, enterprise systems and mobile apps.
10+
Years of delivery
600+
Projects delivered
20+
Countries served
25-30
Days to a live MVP
Get a free consultation
Tell us what you need. A senior engineer replies within one working day.
Quality, detail and reliability
Teams in Japan and Korea expect precise specifications, thorough testing and schedules that hold. We plan in detail, report regularly and treat quality as non-negotiable.
Detailed specifications
Written requirements, screen specifications and acceptance criteria agreed before development.
Thorough testing
Automated and manual testing with reports at every milestone.
Reliable schedules
Realistic plans, regular written progress reports and early warning of any risk.
Long-term partnership
The same team maintains and improves the product after launch.
What we modernize and migrate
PHP upgrades and migration
Old PHP 5 and 7 apps upgraded to PHP 8, or moved to Laravel, Symfony, Node.js or another modern stack.
Java modernization
Java 8 to Java 17 or 21, Spring to current Spring Boot, javax to jakarta, and old app servers to containers.
.NET modernization
.NET Framework and Web Forms to modern .NET, ASP.NET Core and cross-platform hosting.
Monolith to microservices
Split a large codebase into well-defined services, one piece at a time, only where it improves speed or scale.
Front-end modernization
jQuery, AngularJS and server-rendered pages rebuilt in React or Next.js with a modern, accessible UI.
Cloud-native refactoring
Containers, managed databases, queues and serverless, so the app scales and costs less to run.
How we approach Modernization & migration
Why modernize now
Unsupported language versions stop getting security fixes, hosting gets harder, and every new feature takes longer than it should. Modernizing removes that risk and makes the software cheaper to change, without throwing away the business logic that already works.
Rewrite or refactor?
A full rewrite is rarely the safest path. We assess the code and usually recommend an incremental approach: upgrade what can be upgraded, replace the parts that block you, and keep everything that still works. You get a clear recommendation and cost for each option.
No big-bang switchover
We put automated tests and monitoring around the existing system first, then migrate in small, reversible steps, often running old and new side by side. Your users keep working, and every step can be rolled back.
Documented and handed over
You get updated documentation, a CI/CD pipeline and a codebase your own team can maintain. The same engineers can stay on for support and new features.
Built for Japanese teams
Time-zone overlap
Japan is three and a half hours ahead of India, so our working days overlap for most of your afternoon, with a stand-up and same-day replies.
Japan's Act on the Protection of Personal Information (APPI)
We design to the APPI: clear purpose of use, security controls, rules for third-party and cross-border transfers, and data hosted in Japanese cloud regions when required. We sign NDAs before work starts.
Billing
Invoices in Japanese yen (JPY) or US dollars. Typical senior rates are $25 to $49 (USD) per hour, or a fixed price for a defined scope.
Industries we work with in Japan
Japanese companies value careful specifications, quality and reliable schedules. We work with detailed written specs, thorough testing and regular reports, and design to Japan's APPI privacy law.
Automotive
Carmakers invest in connected-car software and factory automation. We design and ship iOS and Android apps for teams in this sector.
Electronics and robotics
Hardware makers need companion apps and embedded AI. Customer and field apps are where we usually start here.
Gaming and anime
Entertainment firms reach global fans through apps and stores. Apps for customers, staff and partners, built on one codebase.
Retail and convenience
Chains run loyalty apps and cashless checkout. We design and ship iOS and Android apps for teams in this sector.
Your working day with us
Our team's hours, in Japanese time
13:30–23:00
Monday to Friday
Overlap with your working day
13:30–18:00
About 4.5 hours every day
Daily stand-up
14:00
Japanese time, plus written updates every evening
Local platforms and setup
Messaging channels
Local payments
Languages
Data hosting
AWS Asia Pacific (Tokyo, Osaka) and Google Cloud asia-northeast1 (Tokyo), in your own cloud account, so data stays where your rules require.
How it works
1. Free assessment
We review your code, dependencies, infrastructure and data, then give you a written migration plan, risks and a fixed quote.
2. Plan and safety net
We add automated tests and monitoring around what exists today, so every change can be checked against the old behaviour.
3. Migrate in small steps
Module by module, with both versions running side by side where needed. You see progress in a demo every week.
4. Cut over and support
A planned switch-over with a rollback path, then the same engineers stay on to fix, tune and keep it current.
See what we've built
Try it yourself, free
Free browser tools from our team. No sign-up needed.
Application modernization services: questions from Japan
Do you work with companies in Japan?+
Yes. Clarigo Infotech works with companies across Japan, including Tokyo, Osaka, Yokohama, as part of clients in 20+ countries. Japanese companies most often hire us for AI automation, enterprise systems and mobile apps. We work remotely from India with one in-house team.
What time-zone overlap do we get from Japan?+
Japan is three and a half hours ahead of India, so our working days overlap for most of your afternoon, with a stand-up and same-day replies.
How do you handle Japan's Act on the Protection of Personal Information (APPI)?+
We design to the APPI: clear purpose of use, security controls, rules for third-party and cross-border transfers, and data hosted in Japanese cloud regions when required. We sign NDAs before work starts.
Which currency do you bill in, and what does it cost?+
We bill in Japanese yen (JPY) or US dollars. Senior engineers typically cost $25 to $49 (USD) per hour, and fixed-scope projects such as an MVP in 25 to 30 days are quoted after a free consultation.
What time are your meetings in Japanese time?+
Our team works 13:30–23:00 Japanese time, so we overlap with your day from 13:30–18:00. Daily stand-ups are usually at 14:00 your time.
Can you build in Japanese and English?+
Yes. We build interfaces and content in Japanese and English, and test them with native speakers before launch.
Where will our data be hosted?+
Usually in AWS Asia Pacific (Tokyo, Osaka) and Google Cloud asia-northeast1 (Tokyo), or wherever your data rules require. Everything runs in your own cloud account, so you stay in control.
What is application modernization?+
Application modernization means updating older software so it runs on supported, secure and modern technology: newer language versions, current frameworks, cloud hosting and a better architecture, while keeping the business logic that already works.
Will our business be disrupted during the migration?+
No big-bang switchover. We migrate in small steps behind automated tests, often running old and new side by side, with a rollback plan for every change.
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