Legacy System Modernization Services USA
We migrate, re-platform, and modernize legacy systems to cloud-native architectures — without downtime, without data loss, and without disrupting your business operations.
Our Modernization Capabilities
Assessment & Roadmap
Comprehensive audit of your legacy codebase, architecture, data models, and integrations to produce a prioritized modernization roadmap.
Strangler Fig Migration
Incremental migration using the Strangler Fig pattern — replacing legacy components piece by piece without a big bang rewrite.
Monolith to Microservices
Decompose monolithic applications into independently deployable microservices with clear domain boundaries and API contracts.
Database Migration
Migrate from Oracle, MSSQL, or legacy databases to modern PostgreSQL, MongoDB, or cloud-native databases with zero data loss.
Cloud Lift & Shift + Modernize
First lift your app to the cloud, then progressively modernize — containerize, serverless, managed services, auto-scaling.
UI Modernization
Replace outdated jQuery, ASP.NET WebForms, or legacy UIs with modern React or Angular frontends connected via new APIs.
Technologies We Migrate To
Modernization Process
Legacy Audit
Code quality analysis, dependency mapping, security vulnerability assessment, and performance profiling of existing systems.
Modernization Strategy
Choose the right approach: rehost, replatform, re-architect, or rebuild. Define phasing to minimize business disruption.
Parallel Development
Build new components while keeping the legacy system running — users never experience downtime during migration.
Data Migration
Schema design, ETL pipeline development, data validation, cutover planning, and rollback strategy.
Decommission & Optimize
Traffic cutover to new system, legacy decommission, post-migration performance tuning, and cost optimization.
What We Modernize
COBOL & Mainframe
Migrate COBOL-based mainframe applications to modern Java/.NET/Python platforms.
Legacy .NET & Java
Upgrade .NET Framework or Java EE monoliths to .NET Core, Spring Boot microservices.
PHP Legacy Apps
Modernize old PHP codebases — WordPress, CakePHP, CodeIgniter — to modern frameworks.
On-Premise to Cloud
Migrate on-premise Windows Server / SQL Server workloads to AWS, Azure, or GCP.
Old CRM/ERP
Replace custom-built CRM/ERP with modern, extensible platforms or entirely rebuild.
Desktop to Web
Convert Windows desktop applications (WPF, WinForms, Delphi) to modern web apps.
Frequently Asked Questions
What does legacy system modernization mean?
Legacy system modernization refers to the process of updating or replacing outdated software systems with modern alternatives. This can mean moving from on-premise to cloud, from monolith to microservices, from old frameworks to modern ones, or rebuilding the entire application while preserving business logic. The goal is to improve maintainability, performance, scalability, and security.
Can you modernize our system without downtime?
Yes. We use proven strategies like the Strangler Fig pattern, blue-green deployments, and feature flags to migrate incrementally. Users continue using the legacy system while we build and test the new one in parallel. Cutover happens with zero or minimal downtime, with a tested rollback plan ready.
How much does legacy modernization cost?
Costs vary widely by the size and complexity of the legacy system. Small applications can be modernized for $50,000–$150,000. Large enterprise systems with complex data migrations can cost $500,000+. We always start with a paid assessment phase ($5,000–$15,000) that produces a detailed roadmap and cost estimate before full commitment.
Will we lose data during migration?
No. Our data migration methodology includes detailed mapping, ETL development, parallel running periods, automated validation checks, and a tested rollback plan. We have migrated billions of records across hundreds of projects without data loss.
Modernize Your Legacy System Today
Free legacy assessment. We'll audit your system and give you a clear modernization roadmap.