Kodelinesoftware engineering
Legacy Modernisation

We stabilise mature software, prioritise technical debt, and modernise critical parts deliberately. Built for systems that must keep running while architecture, dependencies, data access, or release capability improve.

Rescue

When this service makes commercial sense

This service fits when a product must keep running, but releases are slow, bugs are expensive, and dependencies are outdated. Typical triggers are old frameworks, missing tests, insecure dependencies, single-person knowledge, store or platform pressure, hard-to-change data models, or a system that needs stabilisation before new features can move safely.

Project output

What you own after the project

You receive a defensible basis for reducing legacy risk deliberately instead of starting modernisation as an uncontrolled big bang.

Code-health and dependency assessment with prioritised risks
Stabilisation plan for critical paths and fast risk reduction
Modernisation roadmap with modules, migrations, and acceptance points
Handover notes on architecture, data, open risks, and next steps
Framework, dependency, plugin, and SDK lifecycle review
Regression tests, critical paths, and error classes
Data model, migrations, compatibility layers, and rollback options
Architecture boundaries, refactoring sequence, and team handover
Cost drivers

Pricing follows legacy risk, not code volume

Effort depends on production criticality, test status, data model, dependency age, platform pressure, and number of critical paths.

Age and state of frameworks, SDKs, plugins, and dependencies

Test coverage, release risk, and defect frequency

Data model, migrations, and compatibility requirements

Number of critical workflows and affected platforms

Legacy Modernisation

Specific delivery depth

We stabilise mature software, prioritise technical debt, and modernise critical parts deliberately. Built for systems that must keep running while architecture, dependencies, data access, or release capability improve.

Audit

Prioritise technical debt

We assess architecture, dependencies, tests, performance, security, and team handover risk with production impact and business impact in mind.

  • Code-health and dependency audit
  • Risk ranking by business impact
  • Immediate actions for critical paths
Migration

Modernisation without production standstill

Legacy stacks such as Ionic/Cordova, old Angular versions, or tightly coupled backends are renewed incrementally.

  • Ionic-to-Capacitor or framework migration where needed
  • Plugin, SDK, and dependency lifecycle upgrades
  • Strangler-fig, module, or API migration
Stabilisation

Restore delivery capability

Regression tests, release notes, documentation, and architecture boundaries make the system controllable again.

  • Regression tests for core paths
  • Release and rollback notes
  • Refactoring roadmap with acceptance points
Legacy Data

Database protected during modernisation

In mature systems, the existing database is often the most sensitive part. We modernise access layers, schemas, and migrations deliberately.

  • Schema audit and data-quality review
  • Compatibility layer for old clients
  • Incremental data migration with rollback option
Start your project

Tell us about your business logic.

We respond within one working day. The first call qualifies scope, constraints, budget, risk, and fit. Architecture decisions are handled in a paid discovery or audit phase.