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Legacy Code Modernisation

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Legacy Modernisation

Legacy systems increase operational fragility, security exposure and audit risk. We modernise safely using AI‑assisted code analysis, feasibility sprints and structured phased rebuilds.

Illustrative Case Study
Trading Platform

Challenge: A trading platform built on unsupported .NET components created security, audit and resilience concerns.

Solution: Thebes ran a feasibility sprint, prioritised critical modules, and delivered a phased modernisation.

Outcome: 65% reduction in technical debt, fewer incidents, easier audits and lower long-term change and support cost.

Thebes Services

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Risks We Reduce

Unsupported legacy frameworks (Java 1.0, .NET 4.5)
Security vulnerabilities and CVEs
Single‑points‑of‑failure in monolithic applications
Audit and compliance exposure
High cost of maintenance and slow delivery cycles
More than automation. More than consulting. We provide a hybrid AI + expert engineering modernisation system: AI extracts accurate functional & technical requirements,AI generates clean, modern code, Our senior engineers validate logic, refine edge cases, and complete missing business rules, Predictable, consistent output at enterprise scale, Works even with poor documentation or unavailable SMEs, This hybrid approach combines the speed of AI with the precision of expert engineers.