Legacy Modernisation.
Bringing AI, and modern engineering discipline, into enterprise systems that already run, without allowing them to break while you change them.
What this practice is
Much of an enterprise runs on systems built decades ago: COBOL, older Java, aging codebases, and the business logic locked inside them. For communications providers, it's the CSP estate, the OSS/BSS stack, billing, provisioning, and order management built up over years and deeply entangled with the network. This practice brings AI and modern engineering into that estate. The work has a distinct shape: not a clean sheet, but mapping, documenting, and de-risking something that already runs, that the business depends on, and that can't be allowed to fail mid-change. It's also one of the largest, best-defined areas of demand in enterprise AI today.
What we do
- —Map the existing estate: what it does, what depends on it, and where the business logic actually lives.
- —Document the logic that is currently understood only by the system itself, so decisions can be made against a clear picture rather than a guess.
- —Modernise CSP platforms (OSS/BSS, billing, provisioning, order management) where age and entanglement have made change slow and risky, without disrupting live service.
- —Add AI where it earns its place: retrieval over legacy data, a judgment layer over established workflows, without replacing the parts that already work.
- —Modernise interfaces and integration around the estate, so newer systems can work with it on modern terms.
- —De-risk every change with the same guardrail discipline as a new build: clear limits, grounding, and tests, so nothing changes silently.
How we work
A modernisation engagement is a Build with a different starting point: the same senior team, guardrail discipline, and correctness monitoring, applied to a system that already exists. We work in your environment, alongside your team, because the people who run the legacy estate hold knowledge no document captures. We change what should change and leave intact what works. At the end, the modernised system and its documentation are yours.
Where this practice is strongest
Legacy estates are heaviest in regulated, long-established enterprises, where the buyer is usually a CTO or head of platform engineering carrying the modernisation risk, across Communications, Fintech, Healthcare, and Retail & Ecommerce. In Communications specifically, aging CSP and OSS/BSS platforms are a primary modernisation target.
Start with the estate, not the rebuild.
A modernisation engagement usually starts with an Architecture Review of the legacy estate: what it does, where the risk sits, and what should change first.