Modernise legacy applications safely, reduce risk, and prepare your platforms for the future
At Oceanic Tech Services (OTS), we help organisations modernise legacy applications without disrupting day-to-day operations. From .NET Framework modernisation to monolith-to-microservices and on-premise to cloud migrations, we deliver structured, low-risk modernisation strategies aligned with business goals — not just technology trends.
Book an AssessmentHow We Move Legacy Systems Forward
We help businesses modernise legacy systems in a controlled and measurable way.
Assess legacy applications and technical debt
Decide the right modernisation strategy
Move old applications to the cloud safely
Modernise monolithic architectures
Upgrade .NET Framework applications to modern .NET
Improve security, compliance, and performance
Reduce long-term maintenance and support costs
Our focus is not “rewrite everything”, but modernise what matters most.
Who Benefits Most from Modernisation
We work with organisations that depend on legacy systems but need to move forward.
Businesses running critical legacy applications
Organisations planning cloud adoption or migration
Teams maintaining monolithic or tightly coupled systems
Enterprises with on-premise infrastructure
Product and IT teams seeking a safe modernisation path
If your legacy application is holding back growth, this service is for you.
How We Modernise Legacy Applications
Our modernisation services are designed to help you move forward without unnecessary risk. We take a structured, pragmatic approach to modernising legacy applications - balancing technical improvement with business continuity, security, and long-term maintainability. Whether you need incremental change or a full platform evolution, we help you choose the right path with confidence.
Application Assessment
We begin every modernisation initiative with a detailed assessment to understand the current state of your application, identify risks, and uncover opportunities for improvement.
Deliverables may include:
Application, dependency, and integration analysis
Codebase and architecture review to identify constraints and bottlenecks
Technical debt identification and prioritisation
A clear modernisation roadmap with phased recommendations
This assessment provides a shared understanding of where you are today and what sensible progress looks like.
Architecture Decisions
We help you make informed architecture decisions based on risk, cost, and business impact - not trends or one-size-fits-all solutions.
Supported approaches include:
Re-platform vs re-architect vs full rebuild
Incremental vs big-bang modernisation
Monolith → microservices (where it delivers real value)
Hybrid and transitional architectures
Our role is to guide you toward the most appropriate approach, not the most complex or expensive one.
Cloud Readiness & Migration
We prepare and move legacy applications to the cloud in a controlled, predictable way, ensuring stability throughout the transition.
Deliverables may include:
On-premise to cloud migration planning
Cloud-ready application and infrastructure design
Environment separation (Development, Test, Production)
Secure platform setup and configuration on Azure
This enables cloud adoption without disrupting day-to-day operations.
.NET & Platform Modernisation
We modernise Microsoft-based applications using proven, low-risk upgrade paths.
Deliverables may include:
.NET Framework → modern .NET upgrades
Refactoring applications for cloud-native hosting models
Dependency and third-party library modernisation
Build, release, and deployment modernisation
The result is a cleaner, more maintainable platform that’s easier to evolve over time.
Incremental Strangler Pattern
Where a full rewrite introduces too much risk, we apply the incremental strangler pattern to modernise safely.
Key benefits include:
Reduced risk through gradual change
Incremental replacement of legacy components
Continuous value delivery rather than long delays
Minimal disruption for users and business operations
This approach allows modernisation to happen alongside ongoing business activity.
Security, Compliance & Governance
Security and compliance are core to every modernisation effort — not optional extras.
Deliverables may include:
Improved identity and access management
Secure application and integration architecture
Compliance alignment and policy enforcement
Audit-ready cloud configurations and controls
This ensures modernised platforms meet current security and governance expectations.
How We Modernise Without the Risk
We follow a risk-aware, step-by-step modernisation approach.
Assess and understand
Analyse the current application, risks, and constraints.Define the modernisation path
Choose incremental or full modernisation based on business priorities.Modernise in phases
Deliver improvements without disrupting operations.Validate and secure
Test performance, security, and data integrity.Optimise and evolve
Continue improving the platform over time.
Why Choose OTS for Legacy Modernisation
Architecture-led decision making
Strong experience modernising Microsoft-based platforms
Safe, incremental delivery options
Cloud-native and integration-ready designs
Clear communication and long-term support
Ready to Modernise Without the Risk?
If your legacy application is slowing you down, we can help you modernise it safely and strategically.
Frequently Asked Questions
Not always. We help assess whether re-platforming, re-architecting, or rebuilding delivers the best balance of cost, risk, and long-term value.
Yes. We specialise in on-premise to cloud migrations with minimal downtime and controlled risk.
Absolutely. We upgrade and refactor .NET Framework applications to modern .NET and cloud-native architectures.
It’s an incremental modernisation approach where legacy functionality is gradually replaced with modern components over time.