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Legacy System Modernisation
Guiding your business through the transition from Legacy Systems to scalable and modern solutions
Legacy System Modernisation
Legacy system modernisation is the process of updating outdated IT systems to meet current and future organisational needs. Whether updating, migrating or replacing, the goal is to transition to agile, secure and efficient architectures such as cloud platforms, serverless, microservices and API-driven solutions.

Our Clients
Businesses that have trusted us
The benefits of successfully Modernising Legacy Systems
Legacy systems, while once effective, can often become a burden as they age and fail to keep up with technological innovation.
Here’s how getting legacy system modernisation right can transform your business:
Preserve critical systems, reduce risk
Keep vital systems intact while minimising the risk of failures and security breaches.
Drive innovation, not maintenance
Free up resources to focus on value-driven projects, reducing the burden of legacy system upkeep.
Speed up time to market
Agile systems allow faster rollouts of new features, meeting market demands more efficiently.
Lower operational costs
Modern solutions cut maintenance costs, making long-term savings a reality.
Flexibility to adapt
Modern systems provide the adaptability needed to respond to business changes quickly, such as the ability to scale on demand.
Strengthen security & compliance
Build in the latest security measures, ensuring your systems are safe and meet regulatory standards.
Boost team satisfaction
Teams are more engaged when working with modern, efficient technology that feels current and stimulating.
Improve user and system experience
Modern systems offer faster performance and better integration capabilities, improving both user experience and interoperability with other platforms.
How can we help you and what do we do?
At Claria, we specialise in transforming legacy systems into modern, agile solutions that drive efficiency and innovation. Here’s how we assist you through this transformation:
Our Services
Strategy & Design
We help define a modernisation strategy and design an architecture tailored to your business needs, ensuring a smooth transition to new technologies.
Legacy System Migration
Specialising in migrating legacy systems to cloud-based and microservices architectures, we guide you through the transition from outdated platforms.
Data Migration & Integration
We ensure the migration of data and integration between old and new systems, ensuring reliable information flow.
Cloud-Native and Containerised Deployments
We deploy modernised systems in cloud environments using Docker and Kubernetes, optimising scalability and cost efficiency.
Business Process Reengineering (BPR)
We optimise business processes to align with modern platforms, improving operational efficiency and effectiveness.
API Management & Integration
We implement API management strategies to connect legacy systems with new applications, facilitating smooth communication.
Security & Compliance
Ensuring your modernised systems meet security standards and regulatory requirements, protecting both data and infrastructure.
Legacy System Decommissioning
We safely decommission legacy systems, migrating data and applications while ensuring no disruption to operations.
DevOps & Continuous Delivery (CI/CD)
We implement DevOps practices and CI/CD pipelines for rapid, controlled updates, boosting operational efficiency.
Team Augmentation
We offer experienced professionals to support your team in legacy system modernisation, ensuring fast delivery and high quality.
Our trusted technology partners
At Claria, we collaborate with leading technology providers to help businesses modernise their legacy systems. Here's how we use our partnerships to support your transformation journey:
Integration, API Management and Identity Access Management
We use WSO2 to help organisations connect legacy systems with modern applications. Its capabilities in integration, API management and identity management allow us to build reliable and secure architectures that support both internal operations and external services. WSO2 also enables centralised access control and supports IAM requirements such as single sign-on and role-based permissions.
Read moreBoomi’s low-code platform allows us to connect legacy and modern systems efficiently. It supports a range of integration use cases from real-time data exchange to API orchestration and can also handle identity flows in hybrid environments. This helps streamline system communication, reduce manual work and improve data consistency across platforms.
Read moreWe use Microsoft Azure for a range of integration and identity services. Azure API Management enables organisations to manage, secure and publish APIs both internally and externally. Azure Active Directory provides a robust foundation for identity and access control, including single sign-on, multi-factor authentication and user governance across cloud and on-premises systems.
Read moreCore Business Systems (ERP, CRM, Finance, HR)
We support the modernisation and migration of SAP landscapes, including moves to S/4HANA and integrations with modern cloud and API-first architectures.
We work with HubSpot to help businesses replace fragmented or outdated CRM setups with a more structured and user-friendly platform.
We support transitions from legacy HR and finance systems to Workday, providing a more flexible and efficient cloud-based solution.
We assist businesses in moving their ERP processes to NetSuite’s cloud platform, making their operations more adaptable and easier to manage.
We help organisations modernise their customer relationship management by transitioning legacy CRM systems to Salesforce’s agile, cloud-native platform.
We manage the migration and modernisation of Oracle ERP and database systems, helping companies reduce complexity and licensing costs.
We help organisations adopt Microsoft Dynamics 365 to modernise ERP and CRM processes within a single cloud-based environment. It’s a suitable option for businesses seeking tighter integration with the Microsoft ecosystem, covering everything from finance and operations to sales and customer service.
Cloud Infrastructure and Hosting
As a Microsoft Azure partner, we utilise Azure’s cloud infrastructure to support businesses in transitioning legacy systems to cloud-based environments. With Azure’s versatile cloud services, we help organisations scale their operations, improve security and reduce maintenance costs while enabling greater flexibility.
Read moreOur partnership with AWS allows us to migrate and optimise legacy systems using AWS’s robust cloud infrastructure. AWS provides businesses with the flexibility to modernise their IT systems, supporting scalability and innovation while lowering costs and ensuring compliance.
Read moreData Management and Modern Databases
We migrate legacy databases to modern platforms, helping businesses improve performance, simplify maintenance and reduce costs.
Additional technologies
We also work with a broad range of technologies including Docker, Kubernetes, Kafka and others. This allows us to deliver modernisation projects that are aligned with current IT standards and future-ready.
How to tackle Legacy System Modernisation projects?
Claria approach
Modernising legacy systems can be a daunting yet essential step for businesses. Tackling this process requires careful planning, a clear strategy and the right partners. Here’s how we approach legacy system modernisation at Claria.
1. Strategic assessment
Before beginning the modernisation process, we thoroughly assess your current system. This involves understanding your business goals, identifying pain points and recognising the systems that require attention. We work closely with your team to define the scope of modernisation and how it will support your long-term objectives.
2. Define a roadmap
We help you develop a clear roadmap for modernising your legacy systems. This includes setting milestones, timelines and clear objectives, ensuring that we balance quick wins with longer-term improvements. Our approach focuses on aligning technology upgrades with your business needs, making sure your transformation doesn’t disrupt day-to-day operations.
3. Select the right technologies
Choosing the right technologies is key to successful modernisation. Whether it’s moving to cloud-based solutions, adopting microservices, or integrating with new tools, we leverage our partnerships with top providers like Azure, AWS, WSO2 and Boomi to ensure you get the best fit for your business. Our experts guide you through the technology selection process, making sure each decision supports your modernisation goals.
4. Plan for data integration
We help integrate your legacy systems with new applications, ensuring that data flows smoothly across all platforms. Our integration solutions ensure minimal disruption and support for real-time data processing, enhancing operational efficiency.
5. Implement & Migrate
Once the strategy and technologies are in place, we handle the implementation and migration phases. We carefully migrate your data and applications to new platforms, ensuring that nothing is lost and that your new system is both reliable and secure. We follow best practices to minimise downtime and avoid disruptions during the transition.
6. Test & Optimise
Once your systems are modernised, we conduct extensive testing to ensure everything works as expected. Our goal is to identify and resolve any issues early, ensuring that your new systems are optimised for performance, scalability and security. Continuous improvement is a key part of our process, so we always look for ways to further optimise your infrastructure post-deployment.
7. Ongoing support & Maintenance
Modernising legacy systems is an ongoing process. After the initial transformation, we provide continuous support and maintenance, ensuring that your new systems evolve with your business.
Common mistakes made in Legacy System Modernisation
Modernising legacy systems is a crucial but complex process and businesses often make critical mistakes that affect the success of the project.
Here are the most common mistakes to avoid:
1. Failing to assess business needs
Many organisations dive into modernisation without a clear understanding of their business requirements. This leads to mismatched solutions that don't support long-term goals, resulting in wasted resources and unmet expectations. A detailed assessment of business needs is crucial for successful implementation.
2. Underestimating data migration complexity
Data migration from legacy systems to modern platforms often proves more complex than anticipated. Clients sometimes fail to plan for the intricacies of transferring large amounts of data, leading to disruptions, data loss, or poor-quality data after migration
3. Choosing the wrong technology stack
A significant number of clients opt for popular solutions without evaluating whether they fit their specific needs. Using inappropriate technology can cause scalability issues, higher costs and slow performance, ultimately limiting the organisation's ability to innovate and grow.
4. Not planning for change management
Many businesses focus solely on the technical aspects of modernisation but overlook the importance of supporting their teams. Without clear communication, training and ongoing support, employees may struggle to adapt to the new systems, reducing overall productivity.
5. Strategic assessment
As businesses shift to modern platforms, they often neglect the vital step of ensuring compliance with data security regulations. Modernising legacy systems without considering security requirements can expose businesses to risks, such as data breaches or regulatory fines.
Why choose Claria
Claria is your trusted partner in modernising legacy systems. We take a strategic and tailored approach that minimises risk and ensures long-term value. With extensive experience across industries, we guide organisations through the complexities of upgrading outdated systems while ensuring continuity. Here’s why we are the preferred choice for your legacy system transformation:
Expertise in multi-platform integration
We specialise in integrating legacy systems with modern technologies such as cloud environments, microservices and API management. Our focus is on maximising the value of your existing systems by facilitating smooth transitions without requiring costly overhauls.
Industry-specific experience
We have worked with organisations in highly regulated sectors like finance, healthcare, retail and public sector. Our industry expertise ensures that your modernisation project meets the highest standards for security, compliance and operational efficiency, no matter the industry.
Proven track record of Legacy System transitions
Our team has a history of successfully modernising legacy systems while maintaining uninterrupted operations. Whether migrating to the cloud or implementing modern frameworks, we ensure your systems remain flexible, scalable and prepared for future growth.
Focus on risk mitigation and ROI
Modernising legacy systems can introduce risks, but with Claria, you can be confident that these are carefully managed. We help optimise system performance, minimise downtime and safeguard your data, ensuring your investments deliver tangible, long-term returns.
Talk to our Legacy System Modernisation experts
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