Avenga

Application Modernization
Services

  • Application Modernization MServices HERO img 1 - Avenga

    Application Modernization
    Services

    We transform legacy platforms into modern foundations for how organizations
    operate, connect, and scale. Trusted by 600+ leading enterprises, our AI-native
    teams bring end-to-end ownership to legacy platform modernization, from
    architecture through implementation, integrating systems, reducing
    complexity, and enabling greater speed, reliability, and control
    across the business.

    Start a conversation
  • unicredit - Avenga
  • vodafone - Avenga
  • cez gruop - Avenga
  • fidelity - Avenga
  • generali - Avenga
  • iqvia - Avenga
  • olo - Avenga
  • raiffeisen bank - Avenga
  • ridium - Avenga
  • Sunrise - Avenga
  • bank of cyprus - Avenga
  • Hitachi - Avenga
  • indra - Avenga

600+

Enterprises evolving complex software environments with Avenga

97%

Of clients choose Avenga as their long-term technology partner

6000+

Technology professionals bringing the specialized expertise complex modernization requires

30+

Years driving business success through technology

Ronald Holmes New - Avenga

“Working with Avenga is like having
a team of experts whose capabilities you never have to test.”

Ronald Holmes
CTO

rdium - Avenga
Kyriakos Fragkeskos New - Avenga

“Today, customers want things to be easy, fast, and personal. With our new partnership with Avenga and Microsoft, we’re making banking as simple as
a conversation — anytime, anywhere.”

Kyriakos Fragkeskos
Head AI & Analytics

bank of cyprus - Avenga

Engineering Outcomes. The Avenga Difference.

Results,
not deliverables

Your modernization investment is tied to measurable results, not the amount of effort required to deliver them. We establish the target outcomes upfront and take responsibility for achieving them, keeping every delivery decision focused on the improvements your modernization is expected to produce.

AI-native modernization. Up to 50% faster

Completing a migration or releasing modernized code doesn’t define success. Measurable improvements in performance, reliability, scalability, and cost do. That’s why we structure application modernization around the outcomes it needs to achieve, with end-to-end ownership, AI-native delivery, and complete execution visibility.

Full visibility into modernization progress

We continuously measure engineering performance throughout the modernization, tracking improvements in delivery speed, software quality, reliability, and cost efficiency. You gain objective evidence of the value delivered and clear visibility into progress throughout the engagement.

Safeguarded operational continuity

Your live systems are modernized through a controlled release process using blue/green deployments, feature flags, canary releases, and automated rollback. If a deployment behaves unexpectedly, the last stable version can be restored immediately, protecting the operations that depend on the application.

An Application Modernization Process Built for Business-Critical Systems

Discover 1 - Avenga Decide 1 - Avenga Build 1 - Avenga Operate 1 - Avenga Improve 1 - Avenga
Achieve 30–60% productivity gain in planning & requirements.

We assess how your legacy system works today, including its architecture, dependencies, integrations, operating constraints, and business requirements. Stakeholder input, system documentation, and AI-assisted analysis are consolidated to surface hidden dependencies and risks before modernization decisions are made.

30+ Years of Engineering Experience in Your Industry

Select the industry

Banking - Avenga

Banking and Financial Services

Financial institutions depend on interconnected systems where resilience, security, auditability, and regulatory requirements shape every change. Aging architectures and complex integrations can make core systems increasingly difficult to evolve.

Leverage legacy app modernization strategies designed around your financial environment, from refactoring and API enablement to migration, to evolve mainframe and core systems toward a more scalable and maintainable architecture.
Contact Us

Trusted by Leading Enterprises. Proven in Legacy Modernization

Certified Expertise Across Your Technology Ecosystem

Your Vision. Our Engineering. One Conversation to Begin

Tell us about your initiative. Within one business day, we’ll contact you to arrange a conversation with the experts best suited to your project.

 

During our conversation, we will:

 

1. Clarify your challenge, priorities, and key requirements.

 

2. Explore Avenga’s capabilities, domain experience, and relevant case studies.

 

3. Provide expert feedback specific to your initiative.
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FAQ

The app modernization journey typically starts with an assessment of the existing application, including its architecture, dependencies, integrations, business requirements, and operational constraints. From there, the modernization approach and scope are defined before engineering begins. A full-cycle process then covers implementation, testing, controlled release, and ongoing improvement to strengthen performance, security, maintainability, and system health over time.

Modernization efforts can include refactoring existing code, replatforming, rebuilding selected components, introducing APIs, adopting a microservices architecture, or moving applications to the cloud. Depending on the existing environment and business requirements, this may involve public cloud, private cloud, or a hybrid cloud model. The right strategy depends on the application’s architecture, dependencies, technical constraints, and long-term business goals.

When comparing app modernization services, look for a partner that understands your existing system before recommending a modernization plan. Evaluate its experience with your technology stack and industry, how it validates requirements, and how changes to live systems are tested and released. A strong provider should also offer end-to-end engineering capability and clear visibility into progress, quality, and delivery throughout the engagement.

The timeline and cost of a software modernization initiative depend on the size and complexity of the application, technical debt, integrations, data requirements, regulatory constraints, and the modernization strategy selected. A focused component may require a relatively contained engagement, while a deeply integrated enterprise system can involve several phases. An initial assessment helps establish realistic scope, sequencing, timelines, and opportunities to reduce costs through architecture simplification, cloud adoption, automation, or lower maintenance effort.

An outdated application can contain years of accumulated dependencies, technical debt, integrations, and business logic that make change increasingly complex. Enterprises may also face limited documentation, specialist skill gaps, security and compliance requirements, and the need to keep critical operations running throughout modernization. Successful modernization therefore depends on understanding the existing environment first, choosing the right technical approach, and introducing changes through controlled testing and release.