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Written for the CTO who has to decide.
Considered writing on legacy modernization and the engineering behind production systems: what we are building, and what we are learning.
Modernization · Guide
Legacy application modernization: the step-by-step guide for CTOs
A practical roadmap for CTOs planning a legacy modernization: how to audit, sequence and de-risk the move without freezing the roadmap. Structured around the same four phases we run on every engagement: Discovery, Architecture, Build and Operate.
Read the guideNewest first.
Each one answers a decision a technology leader actually faces: whether to act, what to audit, how to change a live system, and when to stop.
Monolith to modular: when to refactor and when to rebuild
Refactor and rebuild are not the same decision, and picking the wrong one is expensive. A framework for deciding which your monolith actually needs.
The legacy code audit checklist: what to assess before you rewrite anything
Before committing to a rewrite, run the audit that tells you what you are actually dealing with: architecture, data, dependencies, and the people who understand it.
How to modernize a legacy system without stopping the business
Modernization does not require a freeze. A look at the patterns — strangler fig, parallel run, dark launches — that let you rebuild underneath a system that stays live.
Signs your legacy application is costing you more than you think
The quiet costs of an aging system rarely show up on a balance sheet. These are the signals that your legacy application has become a liability.
Written from inside the work, not ahead of it.
Every piece here follows the process we run on modernization engagements. The audit, the sequencing, the parallel runs and the cutovers are the work itself, written down.
Case studies
Request a briefing.
Tell us what you are trying to modernize or run in production. Here is exactly what happens after you get in touch.
- 1Within 48 hoursA senior engineer replies, not a sales desk. If we are not the right fit, we say so.
- 2NDA, then a working sessionWe sign first, then talk through the system, the constraint and the owners.
- 3A two-week, fixed-fee assessmentA written roadmap, ROI and build-versus-buy. No lock-in.