Capability · Cloud Architecture
Cloud Architecture & Migration
Secure, observable cloud foundations and controlled migration paths that reduce operational drag rather than relocating it.
Cloud is an operating model, not a destination.
A migration that simply reproduces an on-premises environment in a cloud account rarely delivers the expected benefit. The cost base changes, the failure modes change, and the skills required to operate the platform change — but the architecture and the operating model often do not.
Cloud value comes from deliberate choices: which workloads belong there, how accounts and networks are structured, how identity is governed, how infrastructure is defined and how cost and reliability are observed. Without those choices, the organisation inherits a more expensive form of the same constraints.
Migration also carries risk that is easy to underestimate. Data movement, integration cut-overs, licensing, latency, backup and recovery all need a tested path. A credible migration plan includes rollback, validation and a clear definition of when a workload is genuinely ready to leave the old environment.
A complete capability, not a single workstream.
The scope is shaped around the outcome. These are the components we commonly combine; the emphasis changes with the problem.
Cloud readiness assessment
A structured review of workloads, dependencies, skills, security posture and commercial drivers.
Landing zone design
Account structure, identity, network segmentation, logging, guardrails and cost allocation designed for the organisation.
Migration planning
Workload grouping, migration waves, cut-over design, validation criteria and rollback paths.
Infrastructure as code
Repeatable environments with reviewed change, drift detection and a clear separation between platform and application.
Observability and resilience
Logging, metrics, alerting, backup and recovery designed around the actual service levels required.
Cost and performance optimisation
Rightsizing, storage lifecycle, commitment planning and architectural changes that reduce unit cost.
A path that makes the difficult parts visible.
The sequence is adapted to the Cloud Architecture & Migration context; each stage still produces an artefact the next stage can rely on.
Establish the baseline
Inventory workloads, dependencies, data flows, contracts and current operating costs. You cannot make a credible migration decision from an incomplete picture.
Design the landing zone
Define the account, network, identity, logging and guardrail model before the first workload moves.
Sequence the waves
Group workloads by dependency and risk. Move the least entangled, highest-learning workloads first.
Migrate with validation
Every wave has acceptance criteria, performance validation, security checks and a tested rollback path.
Optimise and hand over
After migration, tune cost, resilience and operations. Document the platform so it can be run without the migration group.
Decisions that determine the outcome.
Cloud selection and workload fit
We assess the workload against the candidate platform’s services, data residency options, commercial model and operational maturity. The answer may be a mix of cloud, managed service and on-premises rather than a single destination.
Managed versus self-managed
Managed services reduce operational burden but can create concentration and exit risk. We make the trade-off explicit, including the skills, cost and control implications.
Landing zone complexity
A landing zone should be as simple as the governance requirements allow. Over-engineered account structures and network segmentation slow delivery without improving security.
Exit and portability
We design data and application boundaries with an exit path in mind. Portability is not free, but unplanned lock-in is more expensive.
What working together looks like.
Cloud engagements usually begin with a two-to-four week assessment. We review the estate, interview the operating owners and produce a target architecture, migration sequence and business case with explicit assumptions.
Migration delivery is then structured in waves, typically over six to twenty weeks. Each wave is independently validated so that a difficult workload does not put the entire programme at risk.
What we need from you
- An inventory of workloads and dependencies
- Access to current cost and contract information
- A security and risk owner for design review
- Business owners for cut-over windows
What you receive
A written scope, an architecture and delivery plan, regular demonstrations, decision records and a handover pack. The exact artefacts are agreed before work begins so that “done” is not a matter of opinion.
What good looks like in practice.
Indicative outcome ranges from comparable engagements. The measures are agreed at the start of each engagement and reported against a baseline.
The questions worth asking before you commit.
Do you migrate everything to the cloud?
No. Some workloads are better left where they are, replaced with a managed service, or retired. The assessment is designed to produce that answer honestly.
Can you work with our existing cloud accounts?
Yes. We can review and remediate an existing landing zone, or design a new structure where the current model creates too much risk.
How do you control migration cost?
Through workload grouping, commitment planning, storage lifecycle and a clear definition of what is in scope. Migration cost is tracked against the business case, not discovered at the end.
What about data residency?
Data location and cross-border access are design constraints. We document where data resides, who can access it and how backup and support arrangements affect the obligation.
Most problems cross more than one discipline.
If the boundary is unclear, start with a conversation. We will help define the smallest useful engagement.
What a migration readiness assessment should answer.
A readiness assessment is not a maturity score. It should answer the questions that determine whether a migration can proceed without creating a new operational problem.
- Which workloads have a clear business owner and a viable target platform?
- Which dependencies, data flows and integration contracts constrain the sequence?
- What must be true before a cut-over: performance, security, recovery, licensing and support?
- What is the rollback path, and how will it be tested?
- Who will operate the platform after the migration group leaves?
If an assessment cannot answer those questions, it is a inventory with a cover page. The output should be a decision pack: target architecture, wave plan, risks, cost model and an explicit statement of what remains unknown.
We would rather delay a wave than migrate a workload whose operating ownership has not been agreed. A migration that transfers technical control without transferring operational capability is not complete.
Ready to define the next step?
Tell us about the system, the constraint and the outcome. We will respond with a practical view of scope and fit.