What is cloud infrastructure consulting? Scope, process and when to use it

Cloud infrastructure consulting is expert help to plan, design, build and improve the foundation your applications run on in AWS, Azure or Google Cloud: accounts, networking, identity, compute, storage, security controls, backup and cost governance. A consultant assesses what you have, designs the target setup, builds it as code and hands it over or operates it.

Key takeaways

• The scope is the platform layer: landing zone, network, identity, compute, data storage, security baselines, monitoring, backup and cost controls.
• Good consultants design against a published framework, such as the AWS Well-Architected Framework's six pillars or Microsoft's Cloud Adoption Framework, so decisions can be reviewed later.
• Infrastructure should be delivered as code, so environments can be rebuilt, reviewed and changed through version control.
• Typical engagements are an assessment, a landing zone build, a migration or modernisation project, or a Well-Architected review of an existing setup.
• Agree up front who operates the platform afterwards. Many problems start at the hand-over between the team that builds and the team that runs.

What does cloud infrastructure consulting cover?

It covers every layer below your application code. NIST's definition of cloud computing (SP 800-145) describes the infrastructure model as the consumer controlling operating systems, storage, deployed applications and some networking, while the provider runs the physical layer. Infrastructure consulting is about getting the consumer-controlled part right.

What does a cloud infrastructure consultant do day to day?

The work follows a predictable sequence, whether you are moving from a data centre or fixing an existing cloud estate.

1. Assess

The consultant reviews your current environment, applications, dependencies, security requirements and costs. For an existing cloud setup, this is often a structured review against the AWS Well-Architected Framework, whose six pillars are operational excellence, security, reliability, performance efficiency, cost optimisation and sustainability. On Azure, the Cloud Adoption Framework plays a similar role.

2. Design

Next comes a target architecture: account structure, network layout, identity model, security baseline and the pattern each workload will use. The design should state the trade-offs, for example the cost of running across multiple Availability Zones against the downtime it prevents.

3. Build

The foundation is built as code with tools such as Terraform, AWS CloudFormation or Bicep. On AWS, AWS Control Tower sets up a landing zone, which AWS describes as a well-architected, multi-account environment based on security and compliance best practices, and applies controls to stop accounts drifting from that baseline. Read more about the approach in our infrastructure as code service.

4. Migrate or modernise

Workloads move onto the new foundation, either as-is or with changes such as managed databases or containers. Our cloud migration services page explains the options.

5. Operate and optimise

After go-live, someone must monitor, patch, back up, respond to incidents and review cost. The consultant either trains your team and hands over, or a managed service provider takes over. Cost reviews work best as a shared practice between engineering and finance, which the FinOps Foundation describes as creating financial accountability through collaboration between engineering, finance and business teams.

When do you need an infrastructure consultant?

• Before a first migration, to set up accounts, network and security once instead of fixing them later.
• When the estate grew without a plan, with many accounts, inconsistent access and no tagging.
• After an incident or audit finding, such as an outage without working recovery or a NIS2 gap analysis.
• When costs rise faster than usage, which usually points to oversized resources, idle environments or missing commitments.
• When your team lacks specific skills, such as Kubernetes, multi-region design or a second cloud provider.

Consulting, managed services or both?

Consulting is project work with a defined outcome, such as a landing zone or a migration. Managed services are ongoing operations under an agreement with response times. Many companies use both: a consultant builds the foundation and the same provider runs it, which avoids losing knowledge at hand-over. Ask any provider for written incident priorities and response times before signing.

Example: a near-zero downtime migration built as code

WorkBuster, a SaaS recruitment platform used around the world, needed to move its MySQL database from a VMware environment to AWS with as little disruption as possible. Opsio deployed the infrastructure with AWS CloudFormation templates, so the design is versioned like application code. The architecture uses Route 53 and an Application Load Balancer, EC2 instances in an auto-scaling group, Multi-AZ MySQL on Amazon RDS, encryption in transit and at rest, and CloudWatch dashboards and alarms. The work followed the AWS Well-Architected Framework, and the case reports near-zero downtime for the migration.

How Opsio helps

Opsio is an AWS Advanced Tier Services Partner with the AWS Migration Competency, with teams in Karlstad and Bangalore. We run infrastructure assessments, landing zone builds and Well-Architected reviews through our cloud consulting service, and operate platforms afterwards with our managed cloud services. Comparing providers? See our guide to cloud consulting companies.

Frequently asked questions

What is the difference between cloud consulting and cloud infrastructure consulting?

Cloud consulting is the broader term and can include strategy, application development and SaaS selection. Infrastructure consulting focuses on the platform layer: accounts, network, identity, compute, storage, security and operations.

What is cloud strategy consulting?

Cloud strategy consulting decides why and what to move to the cloud: business case, choice of provider, which applications to migrate, retire or keep, and the order. Infrastructure consulting then designs and builds the platform that delivers the strategy.

How long does a cloud infrastructure consulting engagement take?

An assessment or Well-Architected review is usually a short, fixed-scope project. A landing zone build or migration takes longer and depends on the number of workloads, integrations and compliance requirements. Ask for a scoped plan after the assessment.

Can a consultant help reduce cloud infrastructure spend?

Yes. Common measures are rightsizing instances, switching off idle environments, using commitment-based discounts for steady workloads and tagging resources by owner so teams see their own cost. The savings depend on how the estate is run today.

Do I need a consultant if I already use a managed service provider?

Not always. Many managed service providers also do design and project work. Use a separate consultant when you want an independent review, or when the work needs skills your provider does not have.

Related reading: Azure Infrastructure as Code.

Related reading: Azure Cloud Consulting Services.

Related reading: Cloud Infrastructure Transformation.