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Download nowWhy modernizing applications pays off
By modernizing your legacy apps, you gain clear and measurable benefits that help your business stay competitive. Our application modernization services ensure that your applications are more scalable, secure, and future-proof. Here’s how modernizing your software can make a difference:
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Improved user experience
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Scales with your business
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Faster time to market
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Future-proofed applications
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Enhanced developer experience
Our capabilities
Application assessment
Start your application modernization with an in-depth review of your apps and infrastructure, based on established frameworks. Identify potential blockers early and get clear recommendations for a smooth modernization process.
- Well-architected review
- Modernization plan
- Define target infrastructure and data architecture
Lift and shift enhanced
Seamlessly transfer your legacy applications to a more efficient and cost-effective cloud environment, while modernizing selected parts for better performance.
- Stay up to date and secure
- Scale as required
- Modernize selected parts for quick wins
Rearchitect and rebuild
Redesign your application architecture and technologies using the latest best practices for scalability and performance.
- Container-based and stateless
- Standardized logging and monitoring
- Microservices cut by domain driven design approaches
Low maintenance technology
Our state-of-the-art technology stack reduces complexity and improves efficiency. Let’s explore how your apps can benefit from streamlined operations and reduced maintenance.
- Fewer unplanned updates
- Faster deployments
- Reduced attack vectors
Software maintenance
Ensure seamless operation of your modernized applications with our ongoing software maintenance services. We provide regular updates, monitoring, and security compliance.
- Regular updates
- Monitoring and metering
- Security and compliance

Tools & technology
At Cloudflight, we leverage modern technologies and frameworks to support scalable and efficient application modernization. Our approach ensures long-term maintainability, security, observability, and seamless cloud integration. Here are some of the key technologies we use:
- Frontend: Angular, Vue, React, HTMX with Alpine
- Backend: Spring Boot, Quarkus, .NET, Nestjs, Fastify
- Infrastructure: Terraform, Ansible, Operators
- Frontend: Typescript, Javascript
- Backend: Java / Kotlin, C#, Typescript
- Infrastructure: YML, HCL, Go
- CI/CD: Gitlab, Teamcity, Azure DevOps
- Monitoring: Prometheus, Grafana

Seamless app modernization
We guide you through the entire application modernization journey, ensuring minimal impact on existing functionality and users. Our process is designed to keep your systems operational while smoothly transitioning to modern apps.
Our design and build sprint, discovery phase, and application assessment lay the foundation for a successful modernization process. We ensure that no critical requirement or risk is overlooked.
A key step in application modernization is identifying which components can be moved independently. By carefully planning the decoupling process, we ensure that each part of the application is modernized efficiently, minimizing risk and disruption.
Step by step, features transition from the legacy system to the modern environment. Our agile modernization process allows continuous improvement, ensuring each phase builds on lessons learned.
In some cases, a successful application modernization project allows for the full decommissioning of the legacy system. This marks a key milestone, bringing your business fully into the modern era—and we’re here to support you every step of the way.
It’s easy to partner with us, here’s how
Kickstart your application modernization journey with three tailored approaches. Choose the one that aligns best with your business needs.
Workshop
Have ambitious goals but need expert guidance to start your modernization project?
- Align stakeholders
- Customized content
- Applicable outcome
Discovery phase
Lay the groundwork for a smooth and successful application modernization process.
- Aligned business objectives
- Concept creation
- Prototype and plan
Development
From MVP to full-scale modern application development, we provide comprehensive solutions tailored to your business.
- Strategic guidance
- Seamless execution
- Results as fast as possible
Why clients trust Cloudflight for application modernization services
Cloud certified
We hold advanced Cloud certifications, including Microsoft Azure Solution Partner for Digital & App Innovation and Kubernetes on Microsoft Azure Specializations, as well as multiple certificates for AWS and GCP.
Grows with your business
Modern approaches leverage Microservice architectures and integration capabilities through messaging, API Management or integration platforms ensuring flexibility.
Cost savings
Leverage serverless approaches and other benefits of modern cloud platforms for performance intensive tasks and save money. Our state of the art architectures and technology stack will open new possibilities.
Chosen application modernization development references

FAQ
Application modernization services help businesses upgrade legacy applications to improve performance, security, and scalability. This includes cloud migration, API integration, microservices architecture, and refactoring to align software with modern technology standards.
There are five key approaches, commonly known as the 5 Rs of application modernization:
- Rehost (Lift & Shift) – Moving applications to the cloud with minimal changes.
- Refactor – Optimizing code for better performance and cloud compatibility.
- Rearchitect – Converting monolithic applications into cloud-native microservices.
- Rebuild – Redeveloping applications using modern frameworks and architectures.
- Replace – Transitioning to an entirely new software solution.
The right approach depends on business goals, technical debt, and long-term strategy.
A common example is migrating a legacy ERP system to a cloud-based platform. This allows businesses to benefit from faster performance, easier integrations, lower maintenance costs, and improved user experience. Another example is breaking down a monolithic application into microservices, making it more agile and scalable.
The cost of modernization depends on multiple factors, including the complexity of the application, scope of changes, and chosen technology stack. Some projects involve minor optimizations, while others require a full architectural transformation. We tailor our approach to your business needs and budget, ensuring the best return on investment.











