Two happy professionals woking with modernised applications on a laptop

Modernise your legacy software with confidence.

Application modernisation

Datacom delivers secure, scalable traditional application modernisation solutions for Australian enterprises and government.

Scalable traditional application modernisation for Australian businesses.

Legacy systems often underpin critical operations across Australian enterprises and government agencies. But these platforms can create barriers to growth, agility and compliance. With Datacom, we can help extend the life of your organisation’s legacy systems while also you prepare for the future. 

Datacom’s application modernisation service supports Australian organisations by replatforming, refactoring, and remediating existing systems—safely, reliably, and with minimal disruption. Whether you’re responding to Australian Prudential Regulation Authority (APRA), Australian Signals Directorate (ASD) Essential Eight, or industry-specific standards, we modernise while keeping your operations compliant and stable.

our-approach

Choosing the right approach for your applications

  • AI-powered modernisation

    Our agentic AI accelerates modernisation, supervised by experienced engineers to ensure security, compliance and auditability. AI-powered modernisation
  • Traditional (hands-on) modernisation

    For complex or bespoke apps, our team uses a hands-on approach with manual refactoring to ensure your modernisation is robust and low-risk.
  • Hybrid and phased delivery

    For mixed legacy environments, our hybrid approach combines expert-led design with targeted AI automation where it offers the most value.
use-cases

When the traditional approach works best

Datacom's traditional appplication modernisation service offers a steady, methodical approach for organisations across Australia.

Cloud replatforming and containerisation

Migrate applications to modern cloud infrastructure or containers for improved scalability, performance, and cost efficiency without changing core business logic.

_______________

Application refactoring and rehosting.

Update code and architecture for performance and maintainability, while moving applications to modern hosting environments without losing business-critical functionality.

_______________

Code remediation and performance uplift

Optimise legacy code to remove inefficiencies, fix defects, and enhance application speed, stability, and maintainability.

_______________

Security, compliance and risk assurance

Strengthen systems with updated controls, align to APRA and ASD Essential Eight, and mitigate operational risks during and after modernisation.

_______________

UX optimisation tailored for Australian user demands

Strengthen systems with updated controls, align to APRA and ASD Essential Eight, and mitigate operational risks during and after modernisation.

ai-app-modernisation

What is the difference between traditional and AI-powered application modernisation?

Traditional application modernisation relies on human-led analysis, design, and code remediation. It’s deliberate, structured, and essential for applications that demand deep contextual understanding and integration with complex enterprise environments.

AI-powered application modernisation, by contrast, introduces AI agents to speed up tasks like code analysis, refactoring, and documentation without replacing human oversight.
 

Explore how AI is transforming modernisation in real-world environments →

Two professionals holding a tablet, attentively looking at it and engaged in discussion.
traditional-app-modernisation

Our approach to traditional application modernisation

We combine decades of application and cloud expertise with proven delivery frameworks to guide your Australian organisation through every stage of the modernisation journey:

  • Assessment and roadmap

    Audit your current application landscape to define the best-fit modernisation approach.
  • Rehosting and replatforming

    Move applications to new infrastructure with minimal changes for fast wins.
  • Refactoring and remediation

    Update codebases and architectures to improve maintainability, security, and performance.
  • Cloud enablement

    Transform applications to run efficiently across hybrid or multi-cloud environments.
  • Ongoing optimisation

    Monitor, maintain, and continually improve your application stack post-modernisation.
outcomes

Outcomes you can expect with traditional application modernisation

  • Reduced technical debt and maintenance costs: Replace outdated components, streamline codebases, and simplify support, lowering long-term costs.

  • Improved security and compliance posture: Apply updated security frameworks, patch vulnerabilities, and meet Australian regulatory requirements.

  • Increased agility and scalability: Enable cloud-native capabilities and modular architectures for easier scaling and faster deployment of new features.

  • Better user experience and performance: Modernise interfaces, optimise workflows, and enhance speed for smoother user interactions.

  • Stronger alignment with future innovation plans: Create a modern technology foundation capable of supporting AI, analytics, and other digital transformation initiatives.

Two professionals holding a tablet, attentively looking at it and engaged in discussion.
why-choose-us-

Why choose Datacom to help modernise your legacy applications?

  • Trusted partner to Australia’s federal and state governments

    Long-standing relationships delivering secure, compliant projects across agencies and public services.
  • Cloud migration and hosting

    Deploy modernised apps across public, private, or sovereign cloud environments using scalable, secure, and high-performance infrastructure. Migrate to cloud
  • Cybersecurity and compliance

    Security-first delivery with compliance aligned to local standards to protect data and systems. Protect your data
  • Software engineering expertise

    1,500+ developers across ANZ deliver modern, scalable, and maintainable solutions using agile, DevSecOps, and cloud-native frameworks. Learn more
  • Data and AI services

    Design and integrate platforms for analytics, AI/ML, and real-time insights that support smarter modernised applications. Support your apps
  • Application testing and assurance

    Comprehensive testing, validation, and monitoring to ensure performance, resilience, and user experience across your modernised app stack. Explore quality assurance
  • Cloud partnerships with Azure, AWS and Google Cloud

    Access to advanced cloud services, optimised pricing, and multi-cloud strategies through strong vendor relationships. Explore public cloud
  • Sovereign GPU Infrastructure

    Run AI workloads on local, GPU-enabled infrastructure for compliance, speed, and data sovereignty. Sovereign cloud
  • Managed services support

    End-to-end lifecycle support across apps, cloud, and infrastructure to maintain performance and continuity post-modernisation. Managed IT services
  • Proven across finance, health, utilities and public services

    Track record of delivering critical modernisation projects in highly regulated, high-impact sectors.
faqs

Frequently asked questions

What is application modernisation?

Application modernisation is the process of updating legacy software systems to meet current business needs, improve performance, increase security, and reduce costs. Modernising your applications allows you to innovate, stay compliant, and better support business growth.

How does app modernisation reduce organisational risk and future-proof our technology landscape?

By modernising, you’ll reduce technical debt, mitigate security threats from unsupported platforms, and gain a scalable foundation to adapt quickly to future needs—delivered through methods that suit your risk appetite.

Is an assessment required before starting a modernisation project?

Yes, we recommend a comprehensive business and technical assessment before any modernisation programme. This helps us determine the right approach for each application and ensures a tailored, risk-managed strategy.

How does Datacom ensure minimal disruption to our operations during modernisation?

We use proven methodologies—both automated and manual—to maintain business continuity throughout the process. Our incremental, phased delivery models and stringent testing ensure production systems remain stable, secure, and fully available.

Can you align with our internal frameworks and reporting requirements?

Yes. We integrate with your programme management tools, reporting cycles, and assurance models to ensure seamless oversight and stakeholder buy-in throughout the project.

What is the framework for app modernisation?

A framework for application modernisation typically involves several key steps: assessment, planning, prioritisation, approach selection, and continuous improvement. It's a process of updating and enhancing existing applications to leverage new technologies, improve performance, and better meet changing business needs. This often includes strategies like cloud migration, refactoring, or rebuilding applications.

What standards and frameworks do you comply with for sensitive sectors?

Our solutions are ISO-certified, Essential 8-aligned, and meet all relevant public sector standards for security, privacy, and data management.

What support do you provide after modernisation?

We offer end-to-end support from initial assessment through to ongoing maintenance, optimisation, and monitoring. Our local teams remain available for any troubleshooting, enhancements, or further transformation work you require.

Explore related capabilities

  • Artificial intelligence app modernisation

    Modernising legacy applications without disruption, and accelerating their digital future. Learn more
  • Business platforms

    Optimise the needs of your organisation, drive efficiency, enhance customer relationships, foster collaboration and optimise your assets. Learn more
  • Data intelligence and process optimisation

    Transform decision-making, drive innovation, and achieve sustainable growth with data intelligence and process optimisation. Learn more
  • Digital experience

    Deliver customer-centric solutions with a holistic approach to digital experience that blends creativity and strategic thinking. Learn more
  • App assurance

    Manage your existing apps, keeping them safe, stable and secure. Learn more
  • Cloud

    Discover smart, secure cloud services designed to power your organisation’s growth. Explore cloud services