The UK public sector has made significant progress in adopting cloud, guided by the government’s Cloud First policy and a growing body of shared standards and practice. Yet many organisations still run important services on ageing infrastructure, and not every cloud migration has delivered the benefits expected.
Drawing on experience of public sector transformation, here are the lessons that most consistently separate successful programmes from those that struggle.
Start with user needs, not technology
The most successful programmes begin by understanding the people who use and run a service. Moving an inefficient process to the cloud rarely improves it.
- Research the needs of citizens, staff and partners before designing solutions
- Map the end-to-end service, including offline and manual steps
- Prioritise improvements that make a visible difference to users
- Follow the Government Service Standard and design for accessibility from the start
Cloud should be the enabler of better services, not the objective in itself.
Build security and assurance in from day one
Public services handle sensitive information and must meet demanding security expectations. Treating security as a final approval step causes delays and rework.
- Design against the NCSC Cloud Security Principles and apply the Government Security Classifications Policy appropriately
- Involve security, information governance and data protection teams early
- Use secure-by-default landing zones and policy as code to apply controls consistently
- Adopt Zero Trust principles, with strong identity and least-privilege access
- Automate the collection of compliance evidence to simplify assurance
Avoid the lift-and-shift trap
Moving existing systems to the cloud unchanged can be a sensible first step, particularly where data centre contracts are ending. But on its own, it often increases costs without improving services.
A more balanced approach considers each application on its merits:
- Retire services that are no longer needed
- Rehost where speed matters and change is low-risk
- Replatform to managed services that reduce operational overhead
- Rebuild services where modern architecture will significantly improve outcomes
- Replace with software as a service where a suitable product exists
Planning this at portfolio level avoids moving problems from one data centre to another.
Build capability, not dependency
Lasting transformation depends on people as much as technology. Programmes that rely entirely on external suppliers can leave organisations unable to run or evolve what has been built.
- Pair external specialists with internal teams throughout delivery
- Document architecture decisions, patterns and runbooks clearly
- Invest in cloud, security and data skills across technical and non-technical roles
- Favour open standards and portable technologies to reduce lock-in
Govern for value, not just spend
Cloud changes the financial model from occasional capital investment to ongoing operational spend. Without active management, costs can grow quietly.
- Establish clear ownership of cloud costs for every service
- Use consistent tagging and regular reporting
- Adopt FinOps practices such as rightsizing, scheduling and commitment-based discounts
- Measure value in terms of service outcomes, not just infrastructure savings
How F10 can help
F10 Solutions supports public sector organisations throughout their cloud journey. We can:
- Assess your current estate and develop a clear, fundable cloud strategy
- Design secure, compliant platforms aligned with NCSC guidance
- Plan and deliver migration and modernisation at portfolio level
- Build internal capability and provide ongoing managed services
To discuss your modernisation plans, contact us at hello@f10-sol.com.



