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De-risk your legacy system modernisation journey with AI

AI is redefining legacy modernisation. By unlocking system knowledge and enabling step-by-step transformation with AI support, organisations can modernise safely, reducing risk and reliance on scarce experts.

For many organisations, legacy modernisation has become a critical priority as outdated systems and architectures can no longer support today’s demands for speed, resilience, regulatory compliance, and innovation.

Ageing mainframes and codebases are no longer just technical challenges, they are structural constraints that limit scalability, slow change, and increase operational risk. At the same time, critical system knowledge often sits with a small number of long-tenured specialists, creating concentration risk as succession gaps widen. The cost of waiting now outweighs the cost of acting.

We combine over 50 years of engineering heritage with AI-augmented techniques to deliver application modernisation services that start from your unique systems, uncover what’s really there, and enable continuous, low-risk change through iterative delivery. With our team of data engineers, cloud specialists, and cybersecurity experts, you can modernise safely, continuously and with confidence.

Get in touch

Our approach to AI-powered legacy modernisation

We enable continuous, step-by-step modernisation through iterative delivery and seamless releases, applying AI as a holistic approach.

Deliver early visibility in weeks

We start small, working within a sandbox environment to make critical system knowledge transparent and accessible. This creates a reliable knowledge foundation of your unique legacy system.

Underpinned by AI-powered assurance

By gradually embedding AI into daily development and operational workflows, we help your teams work more efficiently and reduce dependence on a shrinking pool of legacy system experts.

Scale through staged integration

We help identify and automate critical test cases, ensuring stability throughout the transition. Modernisation happens incrementally, without disruption or downtime.

“A great project success: Significant added value created for our customers and employees in just a few weeks with AI support!”

Paul Brandstatter
Paul Brandstätter

Former Head of Pricing, Analytics & Claims Management, UNIQA

Our modernisation case studies

Cybersecurity

Swisscom's application modernisation leads to greater operational security

Read more
symbolic picture with cables for application modernisation
Cybersecurity

Cybernetic delivery: Modernising Legacy with AI

Read more
Cybersecurity

N Brown modernises Simply Be’s account portal

Read more
More case studies

How AI accelerates modernisation

AI turns legacy systems into transparent, explainable, and navigable assets, enabling faster and safer decision-making.

Reverse-engineering business requirements

Our AI-powered tools analyse your existing codebase to uncover embedded business logic and derive functional requirements. Documentation gaps are closed and legacy behaviour becomes explicit, creating clarity before change.

Intelligent test case generation

A cascade of AI-driven prompts leverages recorded data and business logic to autonomously generate test cases across unit, integration, and system levels.

Architecture analysis and discovery

A tailored set of AI prompts supports the analysis of existing architecture, creating visual models and uncovering business domains and service boundaries.

Use case modernisation

AI acts as a productivity accelerator when modernising code across existing use cases, while expert validation ensures compliance with quality, regulatory, and security standards.

Test data generation

AI generates realistic synthetic data for unit, integration, and load testing, enabling robust validation even when production data cannot be used.

Gain insights from our experts and peers

Explore our latest research, insights, and perspectives on the most important legacy modernisation trends across industries.

  • Future of banking: how to modernise for ecosystem success

    Banking professional looking at city skyline thinking about future
  • Composable commerce: Understanding retail’s new architecture paradigm

    Blocks concept
  • Zurich Airport’s data journey: From silos to a future-ready ecosystem

    Birdsview of an Airplane

Let's discuss your modernisation challenges!

Get in touch

Meet our legacy system modernisation leaders

  • Christian Heger, Group Head Software Excellence & Partner, Zühlke

    Christian Heger

    Group Head Digital Solutions & PartnercontentTeam.linkedinProfileOf Christian Heger
  • Björn Lehnhardt

    Björn Lehnhardt

    Managing Director Financial Services & Insurance, GermanycontentTeam.linkedinProfileOf Björn Lehnhardt
  • David Elliman

    David Elliman

    Global Chief of Software EngineeringcontentTeam.linkedinProfileOf David Elliman

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