Legacy Systems

Your legacy systems still matter. We keep them running and move them forward.

Every organisation has systems that have been running for years, sometimes decades. These platforms often underpin critical business processes, but they become increasingly difficult to maintain, secure and extend. The knowledge that built them may have left the building long ago, and the technology they rely on is no longer supported or actively developed.

Digital Tactics specialises in working with legacy technology. We do not believe in rip-and-replace as the default answer. Instead, we assess what you have, stabilise what needs protecting, and modernise incrementally so your business keeps running while your technology evolves. Whether you are dealing with ageing PHP applications, outdated .NET frameworks, monolithic Java systems or on-premise infrastructure that needs to move to the cloud, we bring the pragmatic engineering experience to make it happen safely.

Our Approach

We follow a careful, phased approach that prioritises stability and continuity while progressively reducing technical debt and risk.

Audit

We perform a thorough assessment of your legacy systems, mapping dependencies, risks and the knowledge gaps that need addressing

Stabilise

We address immediate security vulnerabilities, performance issues and single points of failure to reduce operational risk

Modernise

We incrementally upgrade, refactor or migrate components while maintaining business continuity and team confidence

"Digital Tactics are a reliable and trustworthy partner who works intimately with Endemol UK on a variety of sensitive projects, as well as supporting the day to day technical operations of the Digital Media department. They help us ensure that the projects we deliver are both technically viable and compliant with all relevant data security laws in the UK and abroad."

Neil Biddlecombe Endemol Shine UK

Key Capabilities

Our legacy systems service covers the full lifecycle of ageing technology, from initial assessment through to ongoing managed support.

• Legacy application assessment and audit to understand architecture, dependencies and technical debt
• Incremental modernisation strategies that deliver value without big-bang rewrites
• Database migration and schema evolution across MySQL, PostgreSQL, SQL Server and Oracle
• Framework and language upgrades for PHP, .NET, Java and Python applications
• Cloud migration from on-premise infrastructure to AWS, Azure or GCP with minimal downtime
• Security patching and compliance remediation to address vulnerabilities in unsupported platforms
• Documentation and knowledge recovery to rebuild the understanding your teams need
• Ongoing managed support for legacy platforms that must remain operational

We understand that legacy systems exist for a reason. Our job is to protect the value they deliver while reducing the risk and cost of keeping them running.