Cloud Modernization Without Disrupting the Business
Move legacy .NET, SQL Server, and other business-critical applications onto AWS or Azure in controlled phases - assessed first, migrated in stages, with a rollback path at every step.
In short
- Moving a working legacy application to the cloud doesn't require rebuilding it from scratch - we assess it, stabilize what needs it, and migrate in controlled phases.
- We deploy to both AWS and Azure. The right migration approach - rehost, replatform, or refactor - depends on what the assessment finds, not a default we push regardless of your situation.
- Covers legacy .NET Framework and ASP.NET applications, SQL Server-backed systems, and the on-premises infrastructure underneath them.
- Real proof: an ASP.NET WebForms application on an on-premises IIS 6 server moved to Azure App Service with zero downtime, cutting dashboard load times from roughly five minutes to under five seconds.
- Every migration plan includes a rollback path and a validation step before the next phase begins - not just a project timeline.
Why Is Moving an Existing Application to the Cloud Rarely Just an Infrastructure Task?
A cloud migration sounds like it should be an infrastructure exercise - stand up new servers, point the application at them, done. In practice, the difficult part is understanding what the existing system actually does, what else depends on it, and what genuinely can't afford to break during the move.
Business Logic You Can't Afford to Lose
Years of undocumented rules and edge cases live inside the application. A rushed lift-and-shift can carry hidden assumptions about the old environment straight into the new one.
Downtime the Business Can't Absorb
If the application is business-critical, a single high-risk cutover window is rarely acceptable - the migration has to happen in phases the business can actually tolerate.
Cost Surprises After Go-Live
Moving a workload as-is onto cloud infrastructure without right-sizing it can leave you paying for capacity you don't need, or under-provisioned for the load you actually have.
When Does Cloud Modernization Actually Make Sense?
Not every application needs to move right now. These are the signals that usually mean it's worth an assessment.
On-Premises Hardware Nearing End of Life
A server or data center contract is coming up for renewal, and replacing it in place just delays the same decision.
Scaling Limitations Under Real Traffic
The current infrastructure can't absorb a busy season or a growth spike without manual intervention.
Disaster-Recovery and Backup Gaps
Recovery depends on a single physical location, with no tested failover if that server or site goes down.
Your Team Maintains Servers Instead of the Product
Engineering time goes to patching and rack maintenance instead of the application your business actually sells.
A Modernization Effort That Includes Infrastructure Anyway
You're already planning to modernize the application - the infrastructure move can be sequenced into the same phased plan.
Compliance or Geographic-Availability Requirements
A client or regulation now expects redundancy, defined data residency, or uptime commitments the current setup can't reliably provide.
What Are the Actual Migration Approaches?
We pick the approach based on the assessment, not the other way around.
| Approach | When we use it |
|---|---|
| Rehost | Move the application onto AWS or Azure infrastructure with minimal code changes - typically the fastest path, and the right call when the application itself is stable and the problem is really the hardware underneath it. |
| Replatform | Make targeted changes during the move - for example, onto a managed database or an App Service - without a full architecture rewrite. This is where most of our cloud modernization work actually lands. |
| Refactor | Restructure part of the application's architecture where the current design genuinely can't work well in the cloud, such as a monolith that needs to scale a specific piece independently. Reserved for where the assessment shows it's actually needed, not a default. |
Which Cloud Platform - AWS or Azure?
We deploy to both, and don't default to one regardless of your situation. Which one makes sense usually comes down to what your organization already runs, existing Windows Server or SQL Server licensing (which often favors Azure), and where your team already has operational experience.
Microsoft Azure
Azure App Service, Azure SQL, and managed infrastructure for .NET and SQL Server applications moving off on-premises hosting.
More on our Azure workAmazon Web Services
Serverless and containerized architectures on AWS, for workloads where that platform's services fit better than a lift-and-shift onto Windows-based hosting.
More on our AWS workDo We Need to Modernize the Application Before Moving It?
Not necessarily. A stable .NET Framework or ASP.NET application can often be rehosted or replatformed onto cloud infrastructure as a first step, with application-level modernization sequenced afterward if it's still needed. In other cases - particularly where the application's architecture itself is the constraint - it makes more sense to modernize the application and move it to the cloud as part of the same phased engagement. The assessment is what tells us which order actually applies to your system.
See how we approach Legacy .NET & SQL Server ModernizationWhat Happens to the Database?
A SQL Server database usually has its own migration path, separate from the application code - Azure SQL Database or SQL Server on Azure VMs, and Amazon RDS on the AWS side. We look at existing licensing, stored-procedure and query dependencies, and indexing before recommending a target, rather than assuming a managed database service is automatically the right move.
More on our SQL Server workWhat About Existing Integrations?
A cloud migration is often the point where brittle integrations get exposed - hard-coded internal network paths, credentials tied to on-premises infrastructure, or third-party connections nobody's mapped in years. We inventory these during the assessment so they're accounted for in the migration plan instead of surfacing as a production incident after cutover.
Discuss Integration RequirementsHow Do We Protect Production Continuity?
The same risk controls we use on any modernization engagement apply here, adapted to a cloud migration specifically.
Assessment First
Dependencies, data flows, and integrations are mapped before any workload moves, so the migration plan reflects what the system actually does.
Parallel Environments
New infrastructure is validated alongside the existing environment before it takes over any production traffic.
Defined Rollback Plan
Every migration phase has an explicit path back to the previous known-good state if validation turns up an issue.
Phased Cutover
Traffic moves in stages designed to reduce avoidable disruption, not as a single all-at-once switch.
Data-in-Transit Protection
Data moved during migration is encrypted in transit, with access scoped to what the migration work actually requires.
Cost & Performance Monitoring
Usage and spend are monitored after go-live so the environment gets right-sized based on real traffic, not the original estimate.
How Does the Engagement Work?
Six stages, each validated before the next one starts.
- 01
Assess
Review the application, its database, dependencies, and existing infrastructure before recommending an approach.
- 02
Choose an Approach
Rehost, replatform, or refactor - decided by what the assessment actually found, not picked in advance.
- 03
Plan the Phases
Sequence the migration into stages small enough to validate individually, with a rollback path defined for each one.
- 04
Migrate
Move workloads in phases, keeping the existing system live and serving traffic until each phase is proven.
- 05
Validate & Cut Over
Test functionality and performance in the new environment, then move production traffic over in a controlled cutover.
- 06
Monitor & Optimize
Watch cost and performance after go-live and right-size the environment - cloud cost control is an ongoing exercise, not a one-time setting.
A Real Cloud Migration, Not a Demo
A logistics client's internal operations dashboard ran on ASP.NET WebForms on an on-premises IIS 6 server, taking up to five minutes to load. As part of a broader modernization, we moved it to Azure App Service - removing the on-premises server entirely - alongside an application-layer and database rewrite, with zero downtime during the migration. Load time dropped to under five seconds.
Our Retail POS Modernization project also deployed onto AWS as part of its broader .NET Core migration - a smaller part of that engagement's overall scope, not a dedicated cloud-migration project on its own.
Frequently Asked Questions About Cloud Modernization
Common questions about moving a legacy business application to AWS or Azure.
Discuss Your Cloud Migration
Tell us about the application and infrastructure you're working with - we'll respond the same business day with next steps.