Modernization
Application Modernization
Big-bang rewrites are risky and slow to show value. We modernize step by step, putting tests and observability around what exists, then replacing parts in priority order so the system keeps running throughout.
Problems we solve
Sound familiar?
Incremental modernization of legacy applications: new platforms, architecture and user experience without stopping the business that depends on them.
- A business-critical application runs on an unsupported framework, runtime or server.
- Small changes take weeks because the codebase is fragile and poorly understood.
- Hosting costs are high and deployments are manual and risky.
- The user interface is outdated and slows staff and customers down.
Capabilities
What our modernization work covers
Codebase assessment
Architecture review, dependency audit, risk map and a prioritised modernization roadmap.
.NET Framework to modern .NET
Incremental migration of libraries, services and web apps to supported .NET releases.
Strangler-fig re-architecture
New services and interfaces introduced alongside the legacy system, replacing functionality piece by piece.
Cloud migration
Re-hosting or re-platforming to managed cloud services with infrastructure as code.
Database modernization
Schema clean-up, data migration and performance improvements with verified data integrity.
UX modernization
Rebuilding key user journeys with an accessible, modern interface on top of stable APIs.
Typical stack
- .NET
- ASP.NET Core
- SQL Server
- PostgreSQL
- Azure
- AWS
- Docker
- Terraform
- React
Delivery process
How the engagement runs
- 01
Assess
Understand the current system, its risks and the business priorities that depend on it.
- 02
Stabilise
Add tests, monitoring and automated deployments around the existing system.
- 03
Plan the path
Choose the migration strategy per component: retain, re-host, re-platform or rebuild.
- 04
Migrate incrementally
Deliver modernized parts in small, reversible releases.
- 05
Decommission
Retire legacy components once replacements are proven in production.
Use cases
Where this service fits
Unsupported platforms
Applications on end-of-life frameworks, runtimes or operating systems.
Monolith decomposition
Separating high-change areas of a large application so teams can move faster.
On-premises to cloud
Moving workloads to the cloud with improved reliability and deployment automation.
Examples
Related case studies
FAQ
Modernization questions
Do we need to rewrite our application from scratch?
Rarely. A full rewrite delays value and carries high risk. An incremental approach, stabilising first and then replacing components in priority order, usually delivers improvements sooner and keeps the business running.
Will users experience downtime during modernization?
The goal is to avoid it. We plan releases to be small and reversible, run old and new components side by side where needed, and schedule any unavoidable cut-overs with you in advance.
Related services
Often combined with
- .NET DevelopmentASP.NET Core APIs, background services and web applications built on current .NET releases, structured for testability, performance and long-term maintenance.Learn more
- Custom Software DevelopmentBusiness applications designed around your workflows, data and growth plans: web platforms, internal tools and customer-facing systems.Learn more
- API IntegrationsReliable connections between your applications, SaaS platforms and partners, with retries, monitoring and clear ownership of data.Learn more
Not sure which service fits? Describe the problem and we will tell you.
Ready to talk about application modernization?
Tell us about the problem. We will respond with questions, not a sales script, and an honest view of how we can help.
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