Modernization & migration · Johannesburg
Application modernization services in Johannesburg
Mobile-first, low-bandwidth products with mobile money built in, from a senior team on overlapping hours.
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.
South African companies most often hire us for fintech, healthcare software and AI automation.
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.
Mobile-first and built for real conditions
African businesses need products that work on any phone and any connection, with mobile money and local payments built in.
Works on any connection
Lightweight apps and sites that stay fast on slow networks and older phones.
Mobile money and local payments
M-Pesa, Flutterwave, Paystack and card payments integrated.
Overlapping hours
Two and a half to four and a half hours from India, so most of the day overlaps.
Cost-effective delivery
Senior engineers at offshore rates with full code ownership.
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 Johannesburg teams
Time-zone overlap
South Africa is three and a half hours behind India, so our working days overlap for most of your morning and early afternoon.
The Protection of Personal Information Act (POPIA)
We design to POPIA's conditions for lawful processing: purpose limits, security safeguards and data-subject access, with data hosted in South African cloud regions when required. We sign NDAs before work starts.
Billing
Invoices in South African rand (ZAR) 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 Johannesburg
Johannesburg and Sandton companies in finance and insurance use us for platforms, integrations and AI automation, designed to POPIA.
Mining
Mines invest in safety, monitoring and automation systems. We design and ship iOS and Android apps for teams in this sector.
Financial services
Banks and insurers lead in mobile and digital channels. Customer and field apps are where we usually start here.
Retail
National chains expand e-commerce and loyalty programmes. Apps for customers, staff and partners, built on one codebase.
Tourism and wine
Operators and estates sell to international visitors online. We design and ship iOS and Android apps for teams in this sector.
How the hours line up
Our team's hours, in Johannesburg time
06:30–16:00
Monday to Friday
Overlap with your working day
09:00–16:00
About 7 hours every day
Daily stand-up
09:30
Johannesburg time, plus written updates every evening
What we set up for Johannesburg
Messaging channels
Local payments
Languages
Data hosting
AWS Africa (Cape Town), Google Cloud africa-south1 (Johannesburg) and Azure South Africa North, 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 Johannesburg
Do you work with companies in Johannesburg?+
Yes. Clarigo Infotech works with companies across Johannesburg, including Johannesburg, Sandton, Pretoria, as part of clients in 20+ countries. South African companies most often hire us for fintech, healthcare software and AI automation. We work remotely from India with one in-house team.
What time-zone overlap do we get from Johannesburg?+
South Africa is three and a half hours behind India, so our working days overlap for most of your morning and early afternoon.
How do you handle the Protection of Personal Information Act (POPIA)?+
We design to POPIA's conditions for lawful processing: purpose limits, security safeguards and data-subject access, with data hosted in South African cloud regions when required. We sign NDAs before work starts.
Which currency do you bill in, and what does it cost?+
We bill in South African rand (ZAR) 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 Johannesburg time?+
Our team works 06:30–16:00 Johannesburg time, so we overlap with your day from 09:00–16:00. Daily stand-ups are usually at 09:30 your time.
Can you build in English and Afrikaans and isiZulu?+
Yes. We build interfaces and content in English and Afrikaans and isiZulu, and test them with native speakers before launch.
Where will our data be hosted?+
Usually in AWS Africa (Cape Town), Google Cloud africa-south1 (Johannesburg) and Azure South Africa North, 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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