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Business Applications

Applications 
Modernisation 
& Migration

Your legacy platforms still run the business, and the right modernisation strategy keeps them performing while preparing them for the future. Getronics delivers application modernisation services across refactoring, replatforming, rearchitecting, and rehosting, protecting what works while unlocking what's next.

Plan your modernisation
OVERVIEW

Transform Legacy Into Digital Value

The organisations getting the most from their application estates are the ones modernising proactively, before vendor support windows close or architecture constraints limit growth. Getronics delivers software modernisation services across the full spectrum: refactoring for cloud-native performance, replatforming onto modern infrastructure, rearchitecting monoliths into modular services, or executing a legacy application migration to cloud environments. For the world’s largest fashion retailer, this approach meant seamlessly deploying new WMS releases across 7,200+ stores in 93 markets with zero disruption to live shipping. 

7,200+ Stores Supported

The world's largest fast-fashion retailer's global logistics estate, modernised through agile WMS deployment teams with zero disruption to live operations across 93 markets.

3-Month First MVP

A leading Latin American telco provider's new mobile app architecture delivered its first minimum viable product in just three months using Getronics agile delivery squads.

4x QA Growth in 12 Months

A leading Chilean bank scaled Getronics-embedded certification from 1,500 to 6,000 monthly hours across 195 certified projects during its digital transformation.

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Our Solutions

The Four Routes to Modernisation

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Applications Refactoring for Cloud

Rewrite core components using cloud-native patterns. Microservices, serverless, and containers replace legacy code while preserving the business logic... 

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Applications Replatforming to Cloud

Move to modern infrastructure without rewriting code. Upgrade runtime environments, containerise workloads, and swap commercial databases for managed ... 

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Applications Rearchitecting for Scale

Break monoliths into microservices. Rearchitect tightly coupled systems into modular, independently deployable services that scale with demand and let... 

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Applications Rehosting (Lift-and-Shift)

Move applications to the public cloud fast. Lift-and-shift to Azure, AWS, or Google Cloud with minimal code changes to capture infrastructure savings ... 

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Client

Global Fashion Retailer

CASE STUDY

Elevating Logistics for a Global Fashion Retailer

The world's largest fast-fashion retailer needed a partner to modernise the warehouse systems behind 7,200+ stores in 93 markets. Getronics deployed agile teams to digitise WMS delivery with seamless rollouts across live retail operations.

View the study
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ABOUT US

Modernisation That Actually Reaches Production

Successful cloud application migration is an engineering discipline, not a one-off project. Getronics brings clear delivery milestones, agile ceremonies, and measurable business outcomes at every stage, backed by the full business applications portfolio from development through to ongoing managed support. 

01

Four Rs, One Team

Each application is assessed on risk, business value, and technical debt, then matched to the right approach, whether that's rehosting for speed, replatforming for cost, rearchitecting for scale, or refactoring for cloud-native performance.

02

Legacy DNA Expertise

Organisations running mainframe, monolithic Java, .NET, Oracle, or COBOL need engineers who understand those platforms as well as Kubernetes and serverless. Getronics brings both, meeting your estate where it is today.

03

Zero-Downtime Moves

Every application migration is planned for parallel running, staged cutover, and fast rollback, keeping critical applications available throughout so business operations continue uninterrupted.

PARTNERSHIPS

Modernisation Platforms & Cloud Partners

Getronics modernises applications onto leading cloud platforms, including Azure, AWS, and Google Cloud, using container orchestration, CI/CD pipelines, and infrastructure-as-code for repeatable delivery.

INSIGHTS & RESOURCES

Modernisation Insights & Resources

View all insights
  • Doctor walking through a hospital corridor, professional vests.
    Case Study

    Multiple hospitals, multiple legacy systems, one patient record

  • Article

    ‘The Real Risk of AI Lies in Not Adopting It,’ Says Our Insurance Industry Expert

  • Article

    What is Solution Architecture?

RELATED SOLUTIONS

Discover More Business Applications Services

Talk to an expert
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Applications Development

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Quality Assurance & Testing

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Data Analytics

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DevSecOps

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Applications Management

FAQs

You have questions. We have answers.

  • Application modernisation services transform legacy software into cloud-ready, scalable, secure platforms without disrupting business operations. Getronics covers the full modernisation lifecycle across the four Rs of refactoring, replatforming, rearchitecting, and rehosting, backed by 35+ years of application services experience.

  • Modernisation usually involves changing the application itself: refactoring code, redesigning the architecture, or adopting cloud-native patterns. Migration moves the application to a new environment, such as lifting it from on-premises to the cloud. Most enterprise projects combine both, and Getronics helps you choose the right mix based on risk, cost, and time pressure.

  • The four Rs are refactoring (rewriting code for cloud-native performance), replatforming (upgrading the runtime without changing logic), rearchitecting (breaking monoliths into microservices), and rehosting (lift-and-shift to new infrastructure). Getronics assesses each application to determine the right approach, balancing risk, cost, and long-term business value.

  • Timeline depends on scope. A simple rehosting project can be completed in weeks. Replatforming typically runs three to six months. Refactoring and rearchitecting run longer, from six months to two years, depending on estate complexity. Getronics uses agile delivery to ship value incrementally rather than waiting for a single big-bang go-live.

  • Refactoring makes sense when code is valuable, but the architecture holds back scale, cloud economics, or new features. Rehosting fits when the priority is speed; you need out of the data centre now and can modernise incrementally later. Getronics assesses each application individually rather than pushing a single methodology.

  • Getronics cloud application migration follows a proven sequence: discovery and assessment, cloud landing zone design, pilot migrations to validate patterns, then phased migration of the full estate. We migrate to Microsoft Azure, AWS, and Google Cloud with automated tooling, parallel running, and fast rollback built in.

  • Yes. Getronics engineers work on mainframe applications, including COBOL, alongside modern stacks. Mainframe modernisation typically starts with analysis, then moves through a mix of rehosting to emulation platforms, refactoring components into modern languages, or rearchitecting workloads as cloud-native services where business value justifies the investment.

  • The main risks are downtime during cutover, data loss in migration, cost overruns, and feature gaps versus the original system. Getronics mitigates each through staged migration, parallel running, automated testing, and rollback plans. Business owners stay involved in every decision, so the modernised application still matches operational reality.

  • Live operations stay up because we plan for it. Getronics uses parallel running, where new and legacy systems operate side-by-side; staged cutover, where traffic shifts gradually; and automated rollback, where any issue triggers an immediate return to the legacy path. Critical business processes never pause for engineering to catch up.

  • Getronics brings multi-vendor experience across modernisation approaches, deep legacy DNA from 35+ years of application services, and a CMMI Level 3 delivery model proven across real transformations from retail logistics to national healthcare. 2,000+ specialists, 1,800+ customers, and a 96% renewal rate mean the approach is proven, not theoretical.