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Discover
Dependency mapping, code profiling, and interviews with the teams maintaining the system.
Output: documented current-state architecture, including undocumented behavior.
Legacy Modernization
Modernize what you can't turn off
Systematic assessment followed by phased refactoring and re-architecture, delivered against live production environments.
What Is Legacy Modernization?
Legacy modernization is the process of updating existing software that has become expensive, slow, or risky to change. It covers assessment, refactoring, re-architecture, re-platforming, and selective replacement.
Unlike a rewrite, it preserves accumulated business logic and restructures around it, in stages, with the system live throughout.
What Legacy Systems Actually Cost
80%
US federal IT budget, exceeding $100 billion annually, is spent maintaining systems that already exist.
US Government Accountability Office
80%
Technology leaders report a business-critical project delayed or cancelled in the past 12 months as a direct result of technical debt.
Morning Consult
20%
Annual compounding rate of technical debt left unaddressed, doubling in under four years.
Industry analysis
Signs You Need Legacy Modernization
- Maintenance Consuming Most of Engineering Capacity
- System Knowledge Held by a Small Number of People
- Frameworks and Runtimes Past End of Life
- Disproportionate Effort Required for Minor Changes
- Recruitment Constrained by an Obsolete Stack
- Compliance and Security Requirements the Architecture Cannot Meet
What Legacy Modernization Covers
Dependency mapping, code profiling and complexity scoring across the estate, producing a documented current state and a disposition recommendation for each component.
Structural rebuild of components where refactoring cannot achieve the required outcome, with behavior preserved and verified against the original.
Internal restructuring to reduce coupling and improve maintainability, with external behavior unchanged and regression coverage in place.
Redesign of system architecture, including service boundaries, data ownership and integration patterns.
Migration to support runtimes, frameworks, and databases, with compatibility validated before cutover.
Debt inventoried, quantified and prioritized by cost of delay rather than engineering preference, then remediated in sequenced waves.
Decomposition into independently deployable services, sequenced by business domain and validated at each boundary.
API layers and integration patterns that expose legacy capability to modern systems without requiring immediate replacement.
How We Modernize Legacy Systems
Legacy Modernization runs Discover, Define and Design on The Pivot.
Delivery of the resulting roadmap runs through Product Engineering, with delivery automation through DevOps Engineering.
What You Walk Away With
A system that still runs the business and no longer resists change.
Current-state architecture documentation- An application disposition matrix with effort estimates
- A phased roadmap sequenced by business risk
- A technical debt register ranked by cost of delay
- Modernized components in production, with test coverage
- Runbooks under your ownership
Our Technology Landscape
Languages and runtimes
- Java
- .NET
- Python
- Node.js
- COBOL interop
- PHP
Architecture and integration
- REST
- GraphQL
- gRPC
- Apache Kafka
- API gateways
Infrastructure
- Docker
- Kubernetes
- Terraform
- AWS
- Microsoft Azure
- Google Cloud
Data
- PostgreSQL
- MySQL
- Oracle
- SQL Server
- MongoDB
Quality and analysis
- SonarQube
- Playwright
- Jest
- static analysis tooling
Common Questions
Usually modernizes. A rewrite discards years of accumulated business logic, much of it undocumented, and large-scale rewrites fail at a high rate. Rewriting makes sense when the business capability itself has changed, not when the code has simply aged.
The assessment typically takes 3 to 5 weeks. Delivery waves run 8 to 12 weeks each depending on scope. Sequencing by business risk means value arrives during the programme rather than at the end.
Yes. Work is executed in waves behind automated tests, with production traffic maintained and defined rollback points at every wave boundary.
That is common and it is what the assessment phase addresses. Dependency mapping and code profiling reconstruct behavior that was never documented.
No. Modernization and cloud migration are separate decisions. Modernizing the application first usually reduces the cost and risk of migrating afterwards.
By the cost of delay. Components are ranked on how much they constrain the business, not on how much they irritate the engineering team.
Start With an Assessment
A dispositioned view of every component, with the sequence to modernize it.
Book a legacy assessment