Modernise your legacy application into a scalable, cloud-based solution.

We help modernise medium to enterprise-level applications into cloud-based, scalable, cost-effective, and maintainable solutions. Using current technology stacks and programming languages, we offer expert code refactoring, cloud migration, complete application redevelopment, and software consultancy. Beyond core delivery, we also provide more specialised and strategic services, including QA outsourcing, Code Review outsourcing, and modernization audit and project delivery roadmap reports.

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Our Core Services

We specialise in four key areas that help businesses modernise their technology stack, software cost efficiency, software maintainability, and software performance improvements.

Application Modernisation

Transform outdated web applications by using modern technologies, architectures, and best practices to improve performance, security, scalability, and maintainability.

Code Refactoring

Transform messy legacy code into clean, maintainable, and scalable applications that your team can work with confidence.

Cloud Migrations

Move your applications to the cloud with confidence. We handle the entire migration process while optimizing for performance and cost.

Engineering Consultancy

Get expert guidance on technical decisions, architecture planning, and best practices to ensure your projects succeed.

QA Outsourcing

Get independent, specialist teams to systematically test, validate, and assure software quality, performance, and reliability across the development lifecycle.

Code Review Outsourcing

Get independent, expert analysis of source code to improve quality, security, maintainability, and adherence to best practices across development teams.

Modernization and Delivery Roadmap Report

Get a structured, strategic assessment of existing systems with a clear, prioritised plan for modernisation, risk reduction, and phased delivery aligned to business objectives.

Frequently Asked Questions

Legacy application modernisation refers to the process of updating and enhancing older applications. While these systems may still perform adequately, they often struggle to integrate with modern technologies. Modernisation efforts can range from minor upgrades to complete application overhauls. At Legacy Zero, we take a balanced approach to ensure your modernised software retains the business-critical functionality you rely on, while benefiting from a modern, scalable, cloud-based technology stack.
As technology advances, older software applications can struggle to remain compatible with modern systems or comply with current security standards. Modernising legacy software allows businesses to stay aligned with industry developments, enhance operational efficiency, improve the user experience, and lower ongoing maintenance costs.
Although modernisation offers many benefits, it also carries certain risks — such as data loss, unplanned downtime, compatibility challenges, and budget overruns. At Legacy Zero, we develop carefully planned modernisation strategies designed to minimise these risks and ensure a smooth transition.
The duration of a modernisation project depends on the complexity of the legacy application, the desired functionality of the updated system, and the modernisation strategy used. On average, projects can take a few weeks to several months.
There are various strategies for modernising applications — including rehosting, replatforming, refactoring, rearchitecting, rebuilding, and even replacing. The most suitable approach depends on your specific requirements, available resources, and the characteristics of your legacy application.
Modernisation can enhance business operations by automating manual tasks, connecting fragmented systems, improving data accessibility, and delivering a better user experience. It also helps reduce maintenance costs and minimise system downtime.
Selecting a application modernisation partner involves evaluating their expertise, proven track record, industry knowledge, and familiarity with relevant technologies. At Legacy Zero, we differentiate ourselves by delivering a tailored approach that aligns with your specific business goals.
Modernising legacy software presents several challenges — including understanding the existing system, ensuring data security throughout the transition, minimising downtime, addressing compatibility issues, and gaining stakeholder support. With careful planning and execution, these challenges can be effectively overcome.
The cost of application modernisation depends on factors such as the size and complexity of your legacy system, the chosen modernisation approach, and the features required in the updated solution. However, over time, modernisation can result in substantial savings by lowering maintenance expenses and boosting operational efficiency.
Effective preparation involves a thorough system analysis, clearly defined objectives, a realistic budget and timeline, stakeholder alignment, and selecting a trusted modernisation partner. At Legacy Zero, we meticulously plan each step to ensure a smooth and successful transition.
Outsourced QA services provide independent, specialist testing expertise that improves software quality, reduces risk, and accelerates delivery without increasing internal headcount. An external QA team brings objective validation, proven testing methodologies, broader tooling experience, and the ability to scale quickly—helping organisations identify issues earlier, improve release confidence, and allow internal teams to focus on core product development.
Outsourced code review services provide independent, expert analysis that improves code quality, security, and long-term maintainability while reducing delivery risk. External reviewers bring objective insight, deep cross-industry experience, and established best practices, helping teams identify architectural issues, hidden defects, and technical debt early—while allowing internal developers to stay focused on feature delivery.
A Modernization and Delivery Roadmap Report provides a clear, objective assessment of your current systems and a structured, prioritised plan for modernisation and delivery. It helps organisations reduce technical and delivery risk, align technology decisions with business goals, and make informed investment choices by defining realistic phases, dependencies, and outcomes—before committing to major transformation work.
Why choose Legacy Zero?

Why Choose Legacy Zero?

Expert Team

Our experienced developers, with more then 30 years experience combined, specialize in modernising legacy applications with proven methodologies.

Proven Results

Starting a detailed legacy application analysis, and ending with a delivered product, we would provide proven results on improvements in cost, scalability, user engagement and maintainability of you software.

Tailored Solutions

Every project is unique. We create custom solutions that fit your specific needs and constraints.

Ready to Modernise Your Application?

Let's discuss how we can help transform your legacy application into a modern and scalable solution.

Contact us for a free consultation