App Modernization –
From Legacy Application to Secure, Cloud-Native Solution

Transform on-premise and legacy applications into secure, scalable cloud solutions with a proven four-phase approach that reduces risk, protects data, and delivers business value fast.

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Modernize Your Applications Without Stopping Your Business

Your critical applications carry years of investment, knowledge, and business logic. They are also often the systems that hold you back when you want to move faster, scale globally, or improve security.

 

Our App Modernization service helps you transform existing legacy or on-premise applications into cloud-based solutions on your preferred platform. We combine deep technical expertise with a structured four-phase framework so you get a predictable journey from “as-is” to “cloud-ready” and into production. You keep the value of your existing application. We remove the technical debt around it.

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Faster Innovation

Release new features and enhancements more frequently with modern cloud architectures.

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Lower Operational Overhead

Reduce the time and cost of maintaining aging

infrastructure and legacy platforms.




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Better Scalability
Scale up and down with demand and handle peak loads without over-investing in hardware.

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Clear Cloud Cost Control

Gain visibility into consumption and costs with tagging, monitoring, and budget controls.

Nicolas Albana

CEO of AppXite

“Our goal is to make every customer’s cloud journey faster, safer, and more predictable. With this service, organizations can migrate to their preferred cloud provider—whether Azure, AWS, or others—while modernizing their architecture, security, and operations through a structured, guided approach."

Four Phases of App Modernization Service

Assessment and Technical Cloud Blueprint

We start by understanding the application, the business it supports, and the environment it lives in today.

What we do:

  • Analyse the existing application, integrations, and infrastructure
  • Map dependencies, data flows, and operational processes
  • Clarify business goals and non-functional requirements such as security, performance, and availability
  • Select suitable services on your preferred cloud platform (Azure, AWS, or other)
  • Define the modernization approach for each component such as rehost, replatform or refactor

What you receive:

  • Application assessment with a clear overview of the current state
  • Technical cloud blueprint with target architecture diagrams and service choices
  • Recommended modernization and migration strategy with a realistic high-level timeline
  • Transparent view of key risks, assumptions, and options

This is where you get clarity on what it will take and what you will gain.

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Minimum Viable Product in the Cloud

Before committing to a full migration, we validate the design with a working MVP or proof-of-concept in your chosen cloud.

What we do:

  • Set up a controlled cloud environment for the MVP
  • Implement a representative end-to-end business flow in the target architecture
  • Integrate with identity, networking and key external systems
  • Establish infrastructure as code and a basic CI/CD pipeline
  • Validate performance, security and operability of the MVP

What you receive:

  • Working MVP of your application in the cloud
  • Updated technical cloud blueprint adjusted with real-world learnings
  • MVP validation report with results on performance, security and user experience
  • Refined implementation plan for production

This gives you evidence that the solution works for your application and reduces risk for the full implementation.

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Ready Cloud Environment and Implementation

With the design validated, we build a hardened, monitored production environment and implement the full application.

What we do:

  • Design and build dev, test, and production environments that follow best practices
  • Implement all agreed features, modules, and integrations in the cloud
  • Harden security, network, and access controls
  • Set up monitoring, logging, alerting, and dashboards for application and infrastructure
  • Implement and test backup, restore, and disaster recovery
  • Prepare operational runbooks and hand over to ongoing support

What you receive:

  • Production-ready cloud landing zone and environments
  • Fully implemented cloud version of your application under infrastructure as code
  • Monitoring and observability package with dashboards and alerting
  • Security and resilience documentation, including backup and DR tests
  • Operational documentation and runbooks for your teams and ours

Your application is now ready to host real users and data with enterprise-grade security and operations.

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Data Migration and Go-Live

Finally, we migrate your data and move your business users to the new cloud solution with a controlled, low-risk cutover.

What we do:

  • Plan the data migration in detail, including downtime and rollback options
  • Design and implement migration processes and scripts
  • Perform trial migrations to a staging environment and fine-tune the process
  • Execute the final cutover and switch users to the new application
  • Provide a defined hypercare period to stabilize and tune the platform
  • Support decommissioning of legacy environments where agreed

What you receive:

  • Detailed migration and cutover plan you can review and approve
  • Trial migration reports with measured timings and resolved issues
  • Go-live report with evidence of migration success and business validation
  • Hypercare support and a post-implementation review
  • Plan for decommissioning legacy systems and capturing cost savings

You move to the cloud with confidence, backed by a team that has done this before.

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Why AppXite

Benefits of Choosing Us for App Modernization

End-to-end ownership
From initial assessment to post-go-live hypercare, you work with one partner responsible for design, build, migration, and handover.

Cloud-agnostic, business-driven
We work with the cloud provider you prefer and design solutions around your business requirements, not around a specific technology for its own sake.

First-class security and operations
Identity, access, monitoring, and recovery are designed in from day one so your application is not only modern, but supportable.

Proven four-phase framework
Our approach is structured, transparent, and built to reduce risk, not add surprises late in the project.

Flexibility in Managing Service

Everything we build can be operated, monitored, and evolved efficiently, whether you run it yourself or let us manage it for you.

Is App Modernization Right for You?

This service is a strong fit if you:
  • Rely on a business-critical application that is currently on-premise or running on aging infrastructure
  • Need to strengthen security and compliance without rewriting everything from scratch
  • Want to move to Azure or AWS but need a realistic, low-risk plan for how to get there
  • See increasing maintenance costs and fewer people willing to support the existing technology stack
If this sounds familiar, a structured modernization program is usually safer and more cost-effective than a series of ad-hoc fixes.
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