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Service

Legacy PHP & Java Modernization

Reduce risk in an older application through staged runtime, dependency, and maintainability improvements.

01The work

What this service solves

This service helps teams maintain and upgrade legacy PHP or Java applications without treating a full rewrite as the default answer. The work focuses on reducing concrete operational risk while preserving the business behaviour the system already supports.

02Signals

Typical symptoms

  • A PHP or Java runtime version is no longer supported or blocks infrastructure changes.
  • Dependencies are stale, incompatible, or difficult to upgrade safely.
  • Small changes take too long because the application is poorly understood.
  • A system works today but has no clear migration, rollback, or test strategy.
03Method

How the work is approached

  1. 01

    Assess runtime, dependency, framework, and compatibility constraints before proposing a sequence.

  2. 02

    Plan incremental upgrades with clear checkpoints instead of a risky all-at-once rewrite.

  3. 03

    Improve maintainability around the areas being changed: boundaries, tests, configuration, and documentation.

  4. 04

    Use migration and rollback planning to keep fragile systems stable while they evolve.

04Before we begin

What the client should prepare

  • Repository access and the current runtime or deployment details.
  • Known production constraints and maintenance windows.
  • A list of blocked upgrades, errors, or business-critical workflows.
  • Any existing test suite, architecture notes, or deployment runbooks.
05Handover

What a successful handover includes

  • A record of versions, compatibility decisions, and upgrade steps.
  • Validation and rollback guidance for the delivered changes.
  • A practical next-stage modernization roadmap.
06Boundaries

When the service is not the right fit

  • A promise that every legacy system should be rewritten immediately.
  • A request to upgrade production without a way to test or reverse a risky change.
  • A generic marketing site or greenfield build unrelated to an existing system.