Modernise applications without losing what works
We help organisations assess, improve and modernise legacy applications with a practical focus on cloud readiness, security, performance, maintainability and long-term value. Modernisation does not always mean rebuilding everything. It means making the right changes for the right reasons.
Modernisation starts with understanding what should change and what should stay
Many business-critical applications still work, but they may be difficult to maintain, expensive to host, hard to secure or limited by ageing technology. Rebuilding everything is not always the best answer.
Synenza helps organisations review legacy applications and define a practical modernisation path. That may include cloud migration, .NET modernisation, database uplift, API enablement, user experience improvements, security hardening, performance tuning or selective rebuild of the parts that create the most risk.
Built for the work — not for the deck.
Application health assessment
Review application architecture, codebase condition, hosting model, dependencies, integrations, security risks, performance issues and support challenges.
.NET and legacy app modernisation
Modernise ageing .NET, ASP.NET, desktop, internal or line-of-business applications using practical patterns that reduce risk and improve maintainability.
Cloud readiness and Azure hosting
Assess whether applications should move to Azure App Service, Azure Functions, Container Apps, Azure SQL or other cloud services based on suitability and business need.
Database and data layer uplift
Improve database design, data access, performance, security, reporting readiness and cloud platform alignment for application data stores.
Security and identity improvement
Strengthen authentication, authorisation, role-based access, logging, secrets management, data protection and application security controls.
User experience and workflow improvement
Modernise screens, forms, workflows and user journeys so applications become easier to use, support and adopt across teams.
A measured, honest path from idea to production.
Review
Assess the current application, users, architecture, data, integrations, hosting, security, cost, risks and operational pain points.
Decide
Determine whether to retain, rehost, replatform, refactor, rebuild, replace or retire each part of the application landscape.
Modernise
Deliver targeted improvements across hosting, code, data, integrations, security, performance, automation and user experience.
Stabilise
Support testing, release, documentation, monitoring, handover and a roadmap for future improvements.
Common business scenarios.
Legacy .NET application modernisation
Review and improve ageing .NET or ASP.NET applications by modernising hosting, security, deployment, code structure, database access and integration patterns.
Cloud migration for existing applications
Move suitable applications to Azure while improving reliability, monitoring, security, deployment and operational support.
Internal tool replacement or rebuild
Replace ageing internal tools, Access databases, spreadsheets or unsupported systems with maintainable web applications or suitable Microsoft platform solutions.
What good looks like.
- A clear view of application risks, dependencies, technical debt and modernisation options.
- A practical roadmap for improving, migrating, rebuilding, replacing or retiring legacy applications.
- Improved security, identity, monitoring, performance and operational support.
- Reduced reliance on ageing platforms, manual deployments and hard-to-maintain code.
- Better alignment with Azure, integration, reporting, automation and AI-ready platform foundations.
- A modernisation path that balances business value, cost, risk and delivery effort.
The questions clients ask first.
What is application modernisation?
Do we need to rebuild our legacy application completely?
Can Synenza modernise .NET applications?
Can application modernisation include Azure migration?
How do you decide what to modernise first?
Can Synenza replace old internal tools?
Let's scope a first conversation.
Tell us what you're trying to do. We'll come back with a point of view, not a sales pitch.