Engineering capability across Microsoft Azure

Challenge

As the number of subscriptions and regions grows, an Azure network stops being legible. Route tables drift apart between environments, stateful appliances start seeing asymmetric traffic, and the requirement to inspect every flow collides with reference patterns that assume a single connectivity model for the whole organisation.

Approach

We start from an addressing plan and a traffic flow matrix, and only then choose the topology: a classic hub-and-spoke when full control over the hub and your own NVAs are needed, or Virtual WAN when managed scale, multiple regions and branch-to-branch connectivity take priority. Routing is designed explicitly — route tables expressed in code, BGP sessions, prefix propagation and filtering, path symmetry for stateful appliances, and forced tunnelling where policy demands it. Hybrid connectivity (ExpressRoute or site-to-site VPN) is chosen to fit throughput and SLA requirements, not the other way round.

Deliverables

• Hub-and-spoke or Virtual WAN design with a documented rationale
• Routing model: route tables, BGP sessions and prefix filtering
• Custom NVA integration with path symmetry and high availability
• Firewall policy and an allowed traffic flow matrix, deployed as code

Challenge

Manual changes in the portal make auditing impossible and cause environments to drift apart. In a regulated sector, the lack of reproducibility is a compliance problem, not merely an operational one.

Approach

We build modular Bicep and Terraform libraries with clear separation of responsibility, validation at pull-request time and drift detection against the state described in code.

Deliverables

• A library of reusable modules
• Naming, tagging and subscription structure standards
• Policy validation ahead of deployment
• Documentation and an onboarding workshop for your team

Challenge

Infrastructure deployments need to be fast, yet in a regulated environment every production change requires approval, an audit trail and a way back.

Approach

We design multi-stage pipelines that separate planning from approval, use managed identities instead of stored secrets, and apply automated quality gates before each environment.

Deliverables

• Deployment pipelines for every environment
• Permission model and separation of duties
• Automated infrastructure tests and validation
• A documented rollback procedure

Challenge

In a large estate, costs blur across business units and inconsistent tags make reliable allocation and chargeback impossible.

Approach

We deploy PowerShell automation that operates on the full resource inventory: completing and enforcing tags, detecting ownerless resources and producing recurring cost reports broken down by business unit.

Deliverables

• Tenant-wide tagging automation
• Cost allocation reports per business unit
• Identification of idle and over-provisioned resources
• Policies that prevent untagged resources from being created

Challenge

Banking requires documented control over who can deploy what and where in the cloud — without slowing delivery teams down.

Approach

We design landing zones with a management group hierarchy, a policy set that enforces regulatory requirements, and an RBAC model based on organisational roles rather than ad-hoc permissions.

Deliverables

• Landing zone design and implementation
• Compliance policy set with reporting
• RBAC model and access request process
• Control documentation for audit purposes

Challenge

Environments grown over several years accumulate architectural debt whose true scale only becomes visible during an audit or a security incident.

Approach

We run the review against the Azure Well-Architected Framework alongside our own analysis tooling, verifying configuration, permissions and network exposure.

Deliverables

• Assessment report with prioritised risks
• Environment and dependency map
• A phased remediation plan
• Findings presented to technical and business stakeholders