Learn More About Our Company
Integrate Generative AI into your company
Transforming Banking with Cloud, Low-Code & Strategic Partnerships.
Move AI from pilots to production without losing control
The Journey of Independent Vendors to Ecosystem Leaders
Xebia and CAST combine CAST's software intelligence with Xebia Ace’s AI-Native engineering to help organizations modernize complex applications faster and with less risk. CAST provides a factual understanding of the application estate. Xebia Ace plans, sequences, and executes the modernization with human governance and full traceability.
Bringing software intelligence and agentic AI to legacy application modernization
Bringing software intelligence and agentic AI to legacy application modernization
Modernization starts with understanding your application estate
Organizations today face increasing pressure to modernize legacy applications while adopting AI-driven development practices. Yet many transformation initiatives struggle due to limited visibility into application architectures, dependencies, technical debt, and overall modernization complexity.
Xebia and CAST have partnered to close this gap by combining software intelligence, AI-Native engineering, and modernization expertise. CAST provides a factual understanding of complex application landscapes, while Xebia Ace transforms those insights into actionable modernization initiatives, helping enterprises move from analysis to delivery with greater speed, confidence, and business impact.
“Enterprise modernization often stalls because organizations don't have a reliable picture of the systems they're trying to transform. Combining CAST's software intelligence with Xebia Ace's agentic engineering moves clients beyond isolated AI coding productivity gains to modernization that is traceable, outcome-driven, and tied to measurable business value.”
“Just like people, AI agents need a map before they can safely change a complex application. CAST builds that map deterministically from the code itself, showing how components, dependencies and data flows actually connect. By building it into Xebia Ace, Xebia gives its agents facts to work from instead of assumptions, so modernization moves faster with fewer surprises.”
Our Expertise
Gain a clear, factual understanding of your existing application landscape, including systems, dependencies, and architecture.
Identify how proposed changes will affect interconnected applications, services, and business processes before implementation begins.
Turn insights into action with guided implementation, verification, validation, approvals, and controlled execution workflows.
Maintain full traceability throughout the delivery lifecycle while capturing knowledge and insights that improve future modernization efforts.
Solution
Xebia Ace is an AI-Native digital engineering solution for enterprise software delivery. Agentic AI connects enterprise knowledge, agents, engineering workflows and human governance into a single system, from new product development to legacy modernization.
CAST is built into Xebia Ace. Ace uses CAST’s analysis of an organization’s application portfolio to plan, sequence and execute modernization through agentic engineering. CAST helps teams understand what exists today, how everything is connected, and what a change might impact. Xebia Ace turns those insights into action—guiding implementation, verification, validation, approvals, and continuous learning while maintaining traceability throughout the delivery lifecycle. Together, they help teams move faster with greater confidence and fewer surprises.
Client Stories
The Challenge: The healthcare fintech company sought to accelerate software delivery using agentic AI but encountered high token consumption, extensive review and rework cycles, and rising costs, limiting the efficiency and scalability of its delivery process.
The Solution: By combining Xebia Ace with CAST, the organization grounded AI-driven delivery in structural intelligence, enterprise context, governed workflows, and end-to-end traceability.
The Benefits: The organization delivered the same production change 8.5× faster while reducing delivery costs by 90%. Token consumption decreased by more than 99%, and review and rework cycles were reduced from 11 to 3, enabling faster delivery without compromising production-quality standards, governance, or end-to-end traceability.
The Challenge: The fintech company needed to modernize a complex application portfolio burdened by technical debt, open-source vulnerabilities, and cloud readiness challenges, making it difficult to accelerate migration and transformation initiatives.
The Solution: Using CAST highlight, Xebia assessed the application landscape, identified software risks and modernization blockers, prioritized remediation efforts, and developed a data-driven roadmap to guide cloud modernization.
The Benefits: Within a week, the organization gained actionable insights into its application portfolio, enabling targeted refactoring and remediation efforts. Cloud migration readiness improved, cross-functional visibility into software risks increased, and the modernization roadmap is projected to reduce application maintenance efforts by more than 20% by aligning recorded versus recommended FTEs.
Our People
SVP and Global Head of Digital Engineering & Enterprise Transformation at Xebia, with more than 24 years of experience in enterprise architecture, product engineering, cloud adoption, platform modernization and digital transformation. He works with global enterprises to accelerate software delivery, modernize legacy systems and operationalize AI at scale.
Group Managing Director, Products & Platform Engineering at Xebia, with more than 26 years of experience driving digital transformation, optimizing operations and leading high-performing teams across banking, financial services and insurance (BFSI), healthcare and life sciences (HCLS), consumer, manufacturing and high-tech industries.
Head of Engineering and Applied AI at Xebia, focused on making AI-driven software delivery practical for complex enterprise environments, particularly brownfield estates shaped by legacy dependencies, fragmented data and demanding compliance requirements. His work brings together agentic AI, deterministic software intelligence and governed engineering practices.
Our Ideas
Learn why the software delivery gap persists, and what it truly means to reimagine engineering around AI, rather than simply adding AI tools to existing processes
An exclusive fireside chat with Everest Group’s Akshat Vaid and Xebia’s Devipad Tripathy
Learn how Xebia Ace brings a deterministic approach to AI-Native digital engineering, connecting business intent, enterprise knowledge, and specialized AI agents within a governed delivery framework.
AI is speeding up coding. Is it speeding up your software delivery? Learn why faster software delivery needs a better system.
This thought leadership series explores how AI-powered knowledge agents reshaping the SDLC.
Explore how Xebia Ace helps enterprises build, enhance, modernize, and accelerate software delivery across the entire SDLC.
Contact
