Java modernization · London
Java modernization services in London
Senior engineers on your morning and lunchtime hours, UK GDPR built in, and a fixed price before we start.
Clarigo Infotech upgrades and modernizes Java applications: Java 8 or 11 to Java 17 or 21, older Spring and Spring Boot versions to current releases, javax to jakarta namespaces, and heavy application servers to lightweight containers. Where it helps, we split monoliths into services. Every step is covered by automated tests, so the application keeps working while it is upgraded.
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 our Java modernization covers
Java version upgrades
Java 8 or 11 to Java 17 or 21 LTS, including library and build-tool updates.
Spring Boot upgrades
Spring Framework and Spring Boot 1.x and 2.x to current versions, including the javax to jakarta move.
App server to containers
WebLogic, WebSphere, JBoss or Tomcat deployments moved to Docker, Kubernetes or managed cloud services.
Monolith to microservices
Carefully split large Java applications into services, only where it improves delivery or scale.
Build and CI/CD
Maven and Gradle cleanup, automated tests and pipelines that make every release safe.
Performance and security
Dependency and vulnerability fixes, JVM tuning and profiling for faster, safer applications.
How we approach Java modernization
Why move to Java 17 or 21
Newer long-term-support versions bring better performance, security updates and language features, and current Spring Boot versions require them. Staying on Java 8 means growing security and hiring risk.
Upgrade path, not a rewrite
We upgrade in stages (build tools, dependencies, language version, framework), testing at each stage, so you always have a working, releasable application.
How we work with London clients
Time-zone overlap
London and our team in India share four to five working hours every day, so stand-ups, calls and quick decisions all happen 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 London businesses most
London startups and service businesses work with us for senior product teams that design and build software, apps and AI with UK GDPR in mind, at a cost that makes it possible to build more and launch sooner.
Financial services and fintech
London banks and challengers need secure, FCA-compliant digital products. From internal tools to customer platforms, built and supported by one team.
Professional services
Law and consulting firms automate document-heavy workflows. We build the platforms, integrations and internal tools this sector relies on.
Retail and e-commerce
High online shopping adoption makes store performance decisive. Custom software that fits how these teams already work.
Creative industries
Media and agencies adopt generative AI for content production. From internal tools to customer platforms, built and supported by one team.
Your working day with us
Our team's hours, in London 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
London time, plus written updates every evening
Local platforms and setup
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.
Java modernization services: questions from London
Do you work with companies in London?+
Yes. Clarigo Infotech works with companies across London, including London, Canary Wharf, Shoreditch, 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 London?+
London and our team in India share four to five working hours every day, so stand-ups, calls and quick decisions all happen 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.
What time are your meetings in London time?+
Our team works 04:30–14:00 London time, so we overlap with your day from 09:00–14:00. Daily stand-ups are usually at 09:30 your time.
Can you build in English?+
Yes. We build interfaces and content in English, and test them with native speakers before launch.
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.
Who owns the code and data?+
You do. All source code, configuration and data stay yours, in your own repositories and cloud accounts.
Do you sign an NDA?+
Yes. We sign an NDA, and a data processing agreement where needed, before any work starts.
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