Azure Services
White-label Azure network design and delivery across AU, UK, and SG. We architect the connectivity layer that ties your client's Azure services together - securely, at the right scale, and without the flat-VNet mistakes that create remediation projects six months later.
From hub-spoke VNet topology design and Azure Firewall Premium to Application Gateway WAF, ExpressRoute circuit provisioning, Azure Front Door, private endpoint DNS architecture, and DDoS Protection Standard. End-to-end network engineering under your agency brand.
Azure Networking: The Foundation That Determines How Your Azure Services Estate Holds Together
Azure services deployed without a network design plan end up on flat virtual networks with permissive NSG rules applied inconsistently, no firewall inspection between application tiers, and PaaS resources still accessible via public endpoints because the private endpoint migration was scoped and never prioritised. That configuration isn’t secure. It’s the absence of a posture — and it becomes a remediation project the moment a client’s Azure services estate goes through a security review or compliance audit.
The hub-spoke topology decision, the Azure Firewall vs NVA choice, the Application Gateway vs Front Door split for ingress — these aren’t decisions that get easier to change once Azure services are live and dependent on the network configuration. We design the Azure services networking layer before the first workload is deployed. See how that approach has delivered for our clients across our case studies.
Azure Services Network Engineering Capabilities
Six specialist capabilities. One engineering team designing and delivering the network layer your client's Azure services run on.
Hub-Spoke VNet Topology Design
We design hub-spoke topologies following the Azure hub-spoke reference architecture — hub VNet hosting shared Azure services like Firewall, Bastion, VPN or ExpressRoute gateway, and private DNS resolver, with spoke VNets peered to the hub but isolated from each other. Address space planning covers current and projected subnet requirements, peering configurations, User Defined Routes forcing spoke-to-spoke traffic through the hub firewall, and subscription-level management group structure for governance alignment.
Azure Firewall Premium Configuration
Azure Firewall Premium adds IDPS signature-based detection, TLS inspection for encrypted east-west traffic between application tiers, URL filtering with web categories, and threat intelligence feed integration beyond the standard tier’s basic rule processing. We configure Firewall Premium policies with rule collection groups at the correct priority order, DNAT rules for inbound flows, network rule collections for Azure services that need explicit east-west permissions, and application rule collections for outbound internet access with FQDN filtering.
Application Gateway v2 and WAF
Application Gateway v2 for regional ingress — SSL termination, URL-based routing to multiple backend pools, session affinity, health probes with custom response code matching, and WAF v2 with OWASP 3.2 rule sets in detection mode before production promotion. We configure custom WAF rules for client-specific exclusions, set the backend pool routing for each application tier, and integrate with Azure Key Vault for certificate rotation without manual listener reconfiguration when certificates renew.
ExpressRoute and VPN Gateway
ExpressRoute circuit provisioning with private peering for dedicated connectivity from on-premises to Azure services — bypassing the public internet for latency-sensitive or compliance-driven hybrid workloads. We configure BGP route advertisement, BFD for fast failover, and ExpressRoute Global Reach for inter-site connectivity where required. For clients where ExpressRoute isn’t justified, VPN Gateway with active-active configuration and BGP over site-to-site tunnels provides a cost-effective hybrid connectivity baseline with automated failover.
Azure Front Door Premium
Azure Front Door Premium for global ingress — anycast routing to the nearest Azure PoP, WAF policies at the edge before traffic reaches regional backends, private link origins eliminating public endpoint exposure on App Service, Azure Functions, and Application Gateway backends, and health probe-based automatic failover between origin groups. We design the origin group priority and weight configuration, the custom domain and certificate setup, and the WAF policy inheritance structure across multiple Front Door endpoints and profiles.
Private Endpoint and Private DNS Architecture
Private endpoint provisioning per resource type — Storage (blob, file, queue, table, dfs), SQL Server, Key Vault, Service Bus, Container Registry, and Cognitive Services — with DNS zone integration via Azure Private DNS zones linked to the hub VNet. We configure the private DNS resolver with inbound and outbound endpoints for hybrid DNS resolution, ensuring on-premises clients resolve private endpoint FQDNs without split-brain DNS issues. Public endpoint access is disabled on all Azure services that support private endpoint connectivity.
Our Hub-Spoke Design Framework for Azure Services Networks
We don’t start with resource deployment. Every network design engagement begins with a topology decision — hub-spoke vs Azure Virtual WAN vs flat VNet — and a complete address space plan before a subnet gets created. The hub VNet hosts shared Azure services your workloads depend on: Firewall for north-south and east-west inspection, Bastion for secure VM access without public IPs, VPN or ExpressRoute gateway for on-premises connectivity, and private DNS resolver for custom domain resolution across all peered spokes. Spoke VNets host individual workloads — peered to the hub but not to each other, with User Defined Routes ensuring spoke-to-spoke and spoke-to-internet traffic flows through the Firewall.
The topology and addressing decisions are documented, reviewed, and signed off before any resources are provisioned. Changing a VNet address space after workloads are running is one of the more disruptive remediation tasks in Azure — we plan to avoid it. To discuss your client’s network design, book a discovery call — we return a preliminary topology scope within a week.
Capabilities We Bring to Every Azure Services Network Engagement
NSG design, private endpoint DNS, DDoS protection, and network flow visibility — built into the architecture from day one, not retrofitted after a security audit.
NSG and Application Security Group Design
NSG rules scoped by Application Security Group tags rather than CIDR ranges — so rules survive VM IP address changes without manual updates. Inbound and outbound rules defined per subnet for each workload tier, with a default-deny implicit rule at the bottom of each NSG and explicit allow rules only for documented traffic flows. NSG flow logs enabled to a Storage account for Network Watcher traffic analysis and compliance audit retention.
Private Endpoint DNS Resolution
Azure Private DNS zones per Azure services resource type (privatelink.blob.core.windows.net, privatelink.vaultcore.azure.net, privatelink.servicebus.windows.net) linked to the hub VNet, with A records auto-registered from each private endpoint. Private DNS resolver with inbound endpoints for on-premises-initiated queries and outbound endpoints for conditional forwarder rules — ensuring hybrid clients resolve private endpoint FQDNs correctly without split-brain DNS configuration on the on-premises DNS server.
DDoS Protection and WAF Policy Management
Azure DDoS Protection Standard on hub VNets for adaptive real-time mitigation with per-resource telemetry and SLA-backed protection — beyond the basic infrastructure-level mitigation included on all Azure subscriptions. WAF policies managed centrally in Azure Policy as Firewall Manager policies, applied consistently across Application Gateway and Front Door profiles, with custom rule sets for client-specific exclusions and bot protection rulesets enabled at Front Door edge locations.
Network Monitoring and Flow Analytics
Azure Network Watcher for connection monitoring, packet capture, and next-hop diagnostics across VNet paths. NSG flow logs processed through Traffic Analytics for visualising bandwidth consumption by subnet, identifying unexpected traffic flows between workload tiers, and surfacing NSG rule hits that indicate misconfigured application network dependencies before they become production incidents.
Azure Services Networking Delivered Under Your Agency Brand
We work as the invisible engineering layer behind your agency’s Azure delivery. Our network engineers design the VNet topology, provision the infrastructure via Bicep or Terraform, configure Firewall policies and WAF rules, and produce architecture diagrams and runbooks in your format. Your clients receive a documented, production-ready the network they can actually hand to an internal team — not a configuration that only the engineers who built it understand.
Our white-label development model is built for agencies managing multiple networking clients simultaneously. You scope the engagement confidently knowing the technical delivery is handled. For agencies running several network projects concurrently, our agency partner programme provides priority access to our network engineering team, preferred project rates, and a dedicated account contact across all active client engagements.
Why Azure Services Network Designs Fail — And What We Do Differently
The most common failure: Azure services deployed into a single flat VNet with NSG rules that grew by accumulation. Web tier, application tier, and database tier share the same address space, with NSG rules that allow traffic broadly because the engineering team was moving fast and nobody defined east-west traffic boundaries. A compromised web-tier resource can reach the database subnet directly. That’s not an edge case — it’s the default behaviour of a VNet that was created when the first Azure resource was deployed and never redesigned as the estate grew.
The second pattern: PaaS services — SQL Database, Key Vault, Storage, Service Bus — still accessible via public endpoints because the private endpoint migration never got prioritised past the planning stage. Every public endpoint is an attack surface your client’s security team will flag in the next audit. Our Microsoft Azure development services practice designs the network topology and private endpoint architecture before the first workload goes into production — not as a security remediation after launch.
Engagement Models for Azure Services Network Projects
Structured for agency delivery workflows. Scalable across your full client portfolio.
Network Architecture Sprint
A defined 4-to-6-week sprint covering the estate assessment, hub-spoke topology design, address space planning, hub VNet provisioning, Azure Firewall policy configuration, and private endpoint migration for PaaS resources. Best for agencies that need a production-ready the network with full documentation at the end of a fixed engagement, not an ongoing open-ended project.
Dedicated Network Engineer
A senior Azure network engineer embedded in your client project — designing the network topology, provisioning infrastructure via Bicep, configuring Firewall and WAF policies, and producing architecture diagrams your account team presents to clients. Available full-time or part-time depending on the project phase and the volume of network work in the current backlog.
Network Design Retainer
A monthly retainer for agencies managing multiple clients’ client network estates simultaneously. Covers new spoke VNet additions, Firewall rule updates as new workloads deploy, private endpoint additions for new resources, WAF policy tuning, and periodic NSG flow log reviews for traffic anomalies. Predictable cost, flexible scope across your active client portfolio.
Greenfield Azure Services Network Build
A full greenfield network design and deployment for agencies setting up a client’s Azure environment from scratch — management group structure, subscription design, hub-spoke VNet topology, ExpressRoute or VPN gateway for hybrid connectivity, and full private endpoint strategy across all PaaS resources. Reach us via our contact page to discuss scope and timeline.
Our Azure Services Network Delivery Process
Six phases from estate assessment to production handover, with sign-off gates before each build stage.
Phase 1 — Azure Services Estate Assessment
We map every existing VNet, subnet, NSG, peering, and routing configuration in your client’s cloud estate. Public endpoints on PaaS resources are documented. NSG rule sets are reviewed for permissive rules and undocumented allow entries. The output is a current-state network diagram and a risk register your agency uses to set accurate remediation scope and client expectations before design work begins.
Phase 2 — Network Topology and Address Space Design
Hub-spoke vs Virtual WAN decision documented with rationale. Complete IP address plan covering hub VNet, all current and projected spoke VNets, gateway subnets, AzureFirewallSubnet, AzureBastionSubnet, and private endpoint subnets — sized to avoid address exhaustion as the cloud estate expands. Topology and address plan reviewed and signed off before provisioning begins.
Phase 3 — Hub VNet and Shared Services Provisioning
Hub VNet deployment via Bicep or Terraform, Azure Firewall Premium with initial policy structure (DNAT, network, application rule collection groups), Azure Bastion Standard for VM access, VPN or ExpressRoute gateway provisioning with BGP configuration, private DNS resolver with inbound and outbound endpoints, and User Defined Routes on spoke subnets forcing traffic through the hub Firewall before any workloads deploy.
Phase 4 — Spoke VNet Deployment and Workload Onboarding
Spoke VNets provisioned per workload boundary, peered to hub with gateway transit enabled, NSG and ASG configuration per application tier, Application Gateway or Front Door provisioned for workload ingress, and WAF policies applied in detection mode before production validation. networking for each workload validated against the agreed topology before cutover from any prior flat-VNet configuration.
Phase 5 — Private Endpoint Migration and Security Hardening
Private endpoints provisioned per Azure resource type with DNS zone A records validated in both hub-VNet resolution and on-premises forwarded resolution. Public endpoint access disabled per resource after private connectivity is confirmed. Shared key or key-based access replaced with managed identity where applicable. DDoS Protection Standard enabled on hub VNet. Firewall IDPS and TLS inspection enabled and validated against expected expected traffic patterns.
Phase 6 — Monitoring, Documentation, and Handover
NSG flow logs and Traffic Analytics configured, Network Watcher connection monitors set per critical Azure network path, Azure Monitor alert rules on Firewall SNAT port exhaustion and DDoS mitigation events, and WAF rule hit dashboards reviewed before handover. Full network architecture documentation, Firewall policy runbooks, and a quarterly NSG review checklist delivered. Learn more about how we structure all engineering delivery on the NextEnvision Digital homepage.
Azure Services Networking — Frequently Asked Questions
Honest answers to the questions agencies ask us before taking on a client's Azure network design.
What security requirements should Android Kotlin development address?
A hub-spoke topology places shared networking infrastructure — Azure Firewall, Bastion, VPN or ExpressRoute gateway — in a central hub VNet, with individual workload VNets as spokes peered to the hub but not to each other. Traffic between spokes or between spokes and the internet flows through the hub Firewall for inspection. This isolates workloads from each other by default and centralises security policy — instead of maintaining separate Firewall configurations or NSG rule sets in every VNet independently.
How is WCAG 2.1 accessibility implemented in Android Kotlin development?
Application Gateway is a regional Layer 7 load balancer — the right choice when your the workload is in a single region and you need SSL termination, URL-based routing to multiple backends, and WAF inspection before traffic reaches your application tier. Front Door is a global entry point using Microsoft’s anycast network — right for multi-region deployments where you need geographic routing, edge WAF before traffic hits any Azure region, and private link origins that eliminate the public endpoint on your regional backends entirely.
How does Hilt dependency injection work in Android Kotlin development?
NSGs are stateful packet filters at the subnet or NIC level — they allow or deny traffic based on source/destination IP, port, and protocol. Azure Firewall is a managed L3-L7 network security service that adds FQDN-based application rules, threat intelligence feed integration, IDPS signature detection, and TLS inspection for encrypted traffic between your workload tiers. NSGs control which resources can communicate; Firewall inspects the content of that communication and blocks known malicious patterns. You need both — they operate at different layers and serve different functions.
What is ProGuard/R8 and why does Android Kotlin development need it?
ExpressRoute provides dedicated private connectivity from on-premises to Azure services via a circuit provisioned through a connectivity provider — traffic never traverses the public internet. VPN Gateway uses IPsec tunnels over the internet, which introduces variable latency and throughput limits. ExpressRoute is the right choice when your client has strict latency SLAs for hybrid workloads, transferss large data volumes between on-premises and Azure, or has regulatory requirements prohibiting data transit over public internet paths.
How does Android Kotlin development handle errors and offline states?
Storage firewall rules and service endpoint policies restrict which VNet subnets can access a PaaS resource, but the resource’s public FQDN still resolves to a public IP. That public IP is a valid attack surface — it’s reachable from the internet even if your rules block most traffic. Private endpoints give PaaS services a private IP inside your VNet and disable public endpoint access entirely. The FQDN resolves to the private IP via Private DNS, and there’s no public IP to target. Firewall rules and private endpoints solve different threat models — you want both.
How do you evaluate and select third-party libraries for Android Kotlin development?
That’s our standard model. Our network engineers design the topology, provision all infrastructure via Bicep, configure Firewall policies and WAF rules, and produce architecture diagrams, runbooks, and network documentation in your agency’s format. Your clients receive a documented Azure network they can manage going forward. Agencies managing multiple networking clients through us on an ongoing basis typically move to our agency partner programme for priority team access and consolidated commercial terms.