Cloud Modernisation
Move critical systems to cloud safely. Keep them running well once they're there.
What this service is
Most organisations with significant digital services have a version of the same problem:
- Systems built or migrated years ago
- Running on infrastructure that made sense then but is becoming a liability now.
- Rising costs and security risk
- Talent to maintain legacy approaches getting harder to find
- The business case for "leave it alone" getting weaker every year
We help clients move critical systems to cloud - safely and without downtime - and run them well once they're there.
We're cloud-agnostic by design
Azure, AWS, Cloudflare Developer Platform, hybrid, multi-cloud. We assess what's right for your situation looking at:
- Regulatory constraints
- Data sovereignty
- Existing infrastructure investment
Our strongest position is high-stakes migrations where downtime isn't an option.
What we do
Cloud migration
Moving critical services to cloud safely - with careful sequencing, zero-downtime migration planning, and the engineering rigour that high-stakes environments demand.
Cloud architecture and modernisation
Redesigning the architecture of existing cloud-hosted services to perform better, cost less, and be easier to operate. Modern cloud-native approaches where they serve the outcome.
Cloudflare Developer Platform
A growing and differentiating capability for edge compute, serverless architectures, and modern application delivery. Workers, Pages, D1, R2 - a modern cloud stack with security and performance built in.
Ongoing cloud run and optimisation
Keeping cloud-hosted services running well - monitoring, tuning, cost optimisation, and continuous improvement. Often delivered as part of our Run and Optimise managed service.
Why build with CDS?
We build for the real thing
The evidence base across our clients is national scale: 10 million daily users, 99.99% availability through 227 million peak requests, 100% uptime over multiple years, migrations completed in weeks without downtime.
We're full lifecycle, not just delivery.
We build it, secure it, and run it. Clients get one accountable team from start to finish - not a delivery partner who hands over and walks away.
We start from the problem.
Every engagement begins with a clear understanding of what the service needs to do and who it needs to serve. Technology follows that understanding, not the other way around.
AI is already part of how we deliver.
We use AI-assisted development tools across our engineering teams. It makes our delivery faster, our code more consistent, and our teams more effective. We also build AI capability into the services we deliver: applied AI features, AI-enabled workflows, AI on the Cloudflare Developer Platform.
See our proof
We work with clients across central government, emergency services, health, financial services and national-scale consumer digital. The common thread is that the services they run can't afford to fail.
Single Online Home
UKCloud to Azure migration in 6 weeks with zero downtime. £200k annual saving. National policing platform maintaining 100% uptime since 2022.
National Rail Enquiries
Umbraco on AWS at national scale. 10 million daily users, 99.99% availability through major disruption events.
Office of Government Property
Next.js 15 on Cloudflare Pages for Cabinet Office. Sub-second load times globally. 50% faster deployment cycles. Government security standards met automatically.
Speak to our experts
Get in touch with our team today to see how we can help your organisation.
