Refactor when the data model and the core logic are sound and the pain is at the edges. Rebuild when the foundation is the problem. The audit answers this with evidence, not preference.

Can you take over an existing codebase?

Yes — including ones generated with low-code or AI tools, and ones whose original team is gone. We start with a read-only audit, then fix in priority order.

How long does a migration take?

A contained system: 8–14 weeks including shadow-running; the read-only sync alone is usually live in the first two. A multi-site network: one site fully through per week, so nothing is half-done.

Do we own the code and the accounts?

Yes. Everything runs on your GitHub, hosting, database and payment accounts from day one; we're collaborators, not gatekeepers.

Legacy modernization & rebuilds | KineticHex

Laptop on a desk with application code on screen

Legacy modernization & rebuilds

When critical software has become slow to change, expensive to run or risky to deploy, we create a modernization plan grounded in the system you actually have. That can mean replacing one failing layer, rebuilding the application around the existing data, or migrating in controlled phases with the old system kept as a fallback. We add the tests, interfaces and documentation that make future change safer.

What We Do: When critical software has become slow to change, expensive…

In this section

What it covers

Architecture audit — A read-only map of what you run today — components, data flows, dependencies, the parts nobody dares touch — with the risks ranked.
Incremental rebuilds — Strangler-style replacement one module at a time, the new and old running side by side until the numbers match.
Data migration — Schema mapping, dry runs, reconciliation reports against the source's own counts, and a rollback that's been rehearsed.
API modernization — A typed boundary in front of the legacy system so new front ends, integrations and agents can be built without touching it.
Automated tests — Characterisation tests that pin current behaviour before anything changes, then unit and end-to-end coverage on the rebuilt parts.
Cloud migration and cutover planning — Infrastructure on your accounts, sized for what you run; a numbered cutover plan with 'done when' checks and a maintenance window.

How we work

Audit first, then a written plan you approve — scope, phases, what stays, what goes, what's blocked on you. Migration in slices with shadow-running against the old system and the old system kept as a fallback until the team signs off. Weekly written updates listing exactly what changed and what we're waiting on.

Proof

In this section

What We Do

Frequently asked questions

Rebuild or refactor?+
Refactor when the data model and the core logic are sound and the pain is at the edges. Rebuild when the foundation is the problem. The audit answers this with evidence, not preference.
Can you take over an existing codebase?+
Yes — including ones generated with low-code or AI tools, and ones whose original team is gone. We start with a read-only audit, then fix in priority order.
How long does a migration take?+
A contained system: 8–14 weeks including shadow-running; the read-only sync alone is usually live in the first two. A multi-site network: one site fully through per week, so nothing is half-done.
Do we own the code and the accounts?+
Yes. Everything runs on your GitHub, hosting, database and payment accounts from day one; we're collaborators, not gatekeepers.

Let's talk

Ready to build something that lasts?

admin@kinetichex.com