Modernise Legacy Systems with Scalable, Future-Ready Applications

Application Modernisation transforms outdated systems into agile, cloud-ready, full-stack applications aligned to business goals.

Without maintenance and management, applications and software decay over time. Technical debt accumulates, whether this appears as bugs and defects, unnecessary operational complexity, or high running costs.

Telefonica Tech can help you streamline delivery, reduce complexity, and unlock modern cloud capabilities, without large-scale disruption.

 

Here’s how we help you modernise with impact: quickly, efficiently, and at scale.

  • Accelerate delivery with our proven Propel methodology

  • Build future-ready apps with modern, cloud-native architecture

  • Transform legacy systems into flexible, modular solutions

  • Reduce costs and manual effort with automation and DevOps

  • Boost uptime and resilience with cloud-native technology

 

 

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Application Modernisation: Our Step-by-step process

How We Work with You

With Telefónica Tech, application modernisation is seamless, efficient, and results driven. Here’s our approach: 

1. Develop a Blueprint:

We help you blueprint a solution through technical discovery and architecture design

2. Create a Prototype:

Prototype in sprints to test and validate the modernisation approach

3. Accelerate modernisation

Accelerate modernisation across architecture, delivery, tooling, and operations

See the Value Faster

We help you adopt change with less risk and disruption, using modular delivery that keeps compliance and quality high.

Application Modernisation Key Benefits: 

Break work into focussed modules to deliver what matters most.

Apply our proven methodology to modernise quickly and confidently.

Elevate your applications with intuitive design, scalable structure, and automated pipelines.

Ensure performance, protection, and efficiency from day one.

Modernise your foundation to support scalable, cloud-native applications.

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Why Telefónica Tech?

  • Industry Expertise:

    With years of experience across various sectors, we know how to address your unique challenges.

  • Full Stack Expertise:

    Tap into proven, tailored solutions that accelerate every layer of your app stack.

  • Agile Support:

    Minimise risk and disruption through modular delivery that ensures quality and compliance.

  • Proven Framework:

    Our agile framework ensures rapid transformation and delivers measurable returns on your investment.

Industry Expertise:
Full Stack Expertise:
Agile Support:
Proven Framework:

How We Help Drive Measurable Change

Many of our customers choose to work with us because of the impressive results we consistently deliver, including:

Reduced Technical Debt:

We consistently help to reduce technical debt with targeted fixes and smarter architecture

Results in Weeks, Not Months:

We can deliver modernised components in just 4–8 weeks

Faster Delivery with Automation

We have increased delivery speed with automated pipelines and CI/CD

Improved Reliability and System Visibility

We improved reliability and visibility with built-in testing and monitoring

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Smoother Cloud Transition

We make cloud transitions smoother by aligning legacy apps to modern patterns

Application Modernisation: FAQs

We use modular, incremental approaches to minimise disruption and keep legacy systems operational in parallel during transformation.

No, our process identifies high-impact areas and delivers change iteratively, often starting with a single component or service.

Yes. We enhance existing investments, improve structure, and help your teams move forward confidently.

We begin with technical discovery workshops to map your current landscape and identify opportunities with measurable business value.

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Want to know more about our approach to app modernisation? Simply fill in the form below and one of the team will be in touch.