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Flyosum
Solution

Legacy System Modernization

Escape brittle legacy technology — incrementally, safely — and unlock growth.

TrafficStrangler facadeLEGACY MONOLITHSearchBookingBillingMODERN SERVICESSearch serviceBooking serviceCloud · CI/CDlegacymigrated →
The business problem

Where it hurts

Legacy systems are a compounding liability: slow to change, expensive to maintain, risky to touch.

  • Brittle, undocumented code
  • High maintenance cost ($30k–$80k/yr typical)
  • Blocks NDC, scale and new features
Our approach

How we solve it

We modernize with the strangler pattern — standing up new capability alongside the old and migrating incrementally — so you escape legacy without a big-bang failure.

Business benefits

The payoff

  • Lower maintenance cost
  • Unblocked roadmap
  • Reduced key-person risk
  • A platform you own
Technology ecosystem

What it’s built on

CloudAPIsCI/CDData migrationObservability
How it works

The path

  1. 1

    Audit

    Map the estate, risks and dependencies.

  2. 2

    Plan

    Sequence a safe migration path.

  3. 3

    Strangle

    Replace incrementally, parallel-run.

  4. 4

    Cut over

    Phased cutover with rollback.

Illustrative scenario

What this looks like

Illustrative scenario: a travel business migrates off a legacy monolith in phases, cutting maintenance cost and finally enabling NDC.

Representative engineering scenario — not a specific client result.

FAQ

Questions

Is big-bang ever needed?

Rarely — incremental migration is safer and we default to it.

How do you de-risk cutover?

Parallel-run, phased cutover and rollback plans.

Start here

Make Legacy System Modernization real.

Book a Technology Audit and get a prioritised, costed plan.