Modernization & migration · UK
Application modernization services in the UK
Senior engineers on your morning and lunchtime hours, UK GDPR built in, and a fixed price before we start.
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.
UK businesses most often hire us for AI automation for service businesses, logistics software and fast MVPs for startups.
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.
Value, clarity and no surprises
UK and Irish buyers want straight answers on cost, timelines and data. We give a written quote, weekly demos and plain-English reporting.
Fixed price, agreed up front
A written scope and quote after a free call, so the budget is settled before any work starts.
UK GDPR and data protection
UK or EU hosting, data processing agreements and privacy built into the design.
Weekly progress you can see
Working software every week and access to the code from day one.
Support after launch
The same team stays on with guaranteed response times, not a hand-off to strangers.
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.
Remote, but close to UK
Time-zone overlap
UK and Indian working days overlap by around four to five hours every day, so your team is online for stand-ups, calls and quick decisions during your morning and early afternoon.
UK GDPR
We design products to UK GDPR principles: data minimisation, clear consent, access controls, encryption and data stored in the UK or EU when you need it. We sign NDAs and data processing agreements before work starts.
Billing
Invoices in British pounds (GBP) or US dollars. Typical senior rates are $25 to $49 (USD) per hour, or a fixed price for a defined scope.
Where we help UK businesses most
Financial services and fintech
London banks and challengers need secure, FCA-compliant digital products. Apps for customers, staff and partners, built on one codebase.
Professional services
Law and consulting firms automate document-heavy workflows. We design and ship iOS and Android apps for teams in this sector.
Retail and e-commerce
High online shopping adoption makes store performance decisive. Customer and field apps are where we usually start here.
Creative industries
Media and agencies adopt generative AI for content production. Apps for customers, staff and partners, built on one codebase.
Meetings in your time zone
Our team's hours, in UK time
04:30–14:00
Monday to Friday
Overlap with your working day
09:00–14:00
About 5 hours every day
Daily stand-up
09:30
UK time, plus written updates every evening
What we set up for UK
Messaging channels
Local payments
Languages
Data hosting
AWS Europe (London), Google Cloud europe-west2 (London) and Azure UK South, 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 the UK
Do you work with companies in the United Kingdom?+
Yes. Clarigo Infotech works with companies across the United Kingdom, including London, Manchester, Birmingham, as part of clients in 20+ countries. UK businesses most often hire us for AI automation for service businesses, logistics software and fast MVPs for startups. We work remotely from India with one in-house team.
What time-zone overlap do we get from the UK?+
UK and Indian working days overlap by around four to five hours every day, so your team is online for stand-ups, calls and quick decisions during your morning and early afternoon.
How do you handle UK GDPR?+
We design products to UK GDPR principles: data minimisation, clear consent, access controls, encryption and data stored in the UK or EU when you need it. We sign NDAs and data processing agreements before work starts.
Which currency do you bill in, and what does it cost?+
We bill in British pounds (GBP) 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.
Where will our data be hosted?+
Usually in AWS Europe (London), Google Cloud europe-west2 (London) and Azure UK South, or wherever your data rules require. Everything runs in your own cloud account, so you stay in control.
Can you integrate Stripe or PayPal?+
Yes. We regularly integrate local payment methods such as Stripe, PayPal, Apple Pay, Klarna, Open Banking (Faster Payments), alongside card payments and subscriptions.
Do you support WhatsApp?+
Yes. Customers in the UK often prefer WhatsApp and SMS and LinkedIn, so we connect chatbots, notifications and support flows to them.
How long does a modernization project take?+
A focused upgrade (for example one PHP or Java application) often takes a few weeks to a few months, depending on size and test coverage. You get a timeline and fixed quote after a free assessment.
Do we have to rewrite everything?+
Usually not. Most projects are a mix of upgrading, refactoring and replacing only the parts that block you. We recommend the lowest-risk path for your situation.
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