Cloud architecture and consulting services
Cloud architecture and consulting services on AWS, Azure and Google Cloud: architecture for new products, migration strategy, landing zones, cloud-native modernisation, Well-Architected reviews, security, resilience and cost designed in from the start, and hybrid and multi-cloud set-ups, with dedicated cloud architects for your team or a defined consulting engagement.
Cloud architecture and consulting we provide
Architecture for new products
Compute, data, messaging and identity chosen for the load, the team and the budget you have, whether containers, serverless or both, with each decision kept as an architecture decision record and the design drawn in the C4 model.
Migration strategy and planning
An inventory of applications and their dependencies, a route chosen for each workload (rehost, replatform, refactor, retire or retain), migration waves planned around your business calendar, and the run cost before and after.
Landing zone design
Accounts, subscriptions or projects per environment and workload, network topology, identity and policy guardrails designed on Azure landing zones, AWS Control Tower or Google Cloud’s landing zone guidance, then built in Terraform.
Cloud-native modernisation design
Monoliths split along business boundaries, background work moved onto queues and event buses, and self-managed servers replaced with managed databases, containers or serverless functions, in steps that each ship on their own.
Well-Architected reviews
Existing workloads reviewed against the AWS, Azure and Google Cloud Well-Architected Frameworks for reliability, security, cost, performance and operations, with each risk rated and a remediation plan in order of impact.
Identity and network security design
Single sign-on for people and federated identity for workloads, private endpoints in place of public ones, segmented networks, encryption keys you control, and audit logging designed in from the first diagram.
Resilience and multi-region design
Recovery time and recovery point targets set per service, then the design that meets them: zone redundancy, active-passive or active-active regions, data replication and failover runbooks, priced so the cost of each level is visible.
Cost-aware architecture
Each design priced before it is built with the providers’ calculators and Infracost, the unit cost per customer or transaction estimated, and the mix of on-demand capacity, savings plans and reservations decided up front.
Hybrid, multi-cloud and data residency
Workloads split across clouds and your own data centres where there is a reason, such as an existing contract, latency, a service only one provider offers, or personal data that must stay in the EU, with identity, networking and monitoring that work across all of them.
Hire cloud architects
Dedicated cloud architects
Cloud architects who join your team full time, work in your tools and process, and report to your lead. You interview them; we carry the Ukrainian contract, payroll, invoicing and leave.
Cloud architecture projects
A defined piece of cloud architecture with a scope, a fixed plan and a named lead on our side who owns the result and reports progress in your channels.
Ongoing cloud architecture
Cloud architecture as a continuing service: the same people every month, a backlog you prioritise, and hours you can see in our portal and on the invoice.
The dedicated team page explains how specialists join your team, and the outsourcing page covers project delivery, take-overs and how we charge.
Who works on your cloud architecture
Cloud architects
Solution design, reviews and migration plans on AWS, Azure and Google Cloud
Cloud engineers
Landing zones and infrastructure as code
Security architects
Identity, network and data protection design
Data architects
Databases, warehouses and data flows
DevOps engineers
Pipelines and the operating model
How we design cloud systems
Requirements come first: the load, the recovery targets, the compliance rules, the team that will run the system and the monthly budget, written down before any service is chosen. Each significant decision is recorded with the options considered and the reason one won, so the reasoning outlasts the people who made it, and every design is costed before it is built.
A design is finished when it is code: landing zones, networks and policies handed over as Terraform or Bicep your team can apply and change, with the diagrams in the same repository. A review of an existing estate starts with read-only access and ends with a written list of risks in order of impact. Our own company runs on Azure this way, with every resource in Terraform and drift detection on a schedule.
Other cloud, DevOps and security services
AWS development
AWS development services: EKS and ECS containers, serverless, landing zones, migrations, databases, data platforms, Bedrock generative AI, security and cost optimisation, with dedicated AWS engineers or project delivery.
Google Cloud development
Google Cloud development services: Cloud Run and GKE, BigQuery, Firebase backends, Cloud SQL and AlloyDB, Gemini on Agent Platform, security and migrations, with dedicated Google Cloud engineers or project delivery.
Kubernetes consulting
Kubernetes consulting and development: clusters on EKS, AKS, GKE and on premises, Helm, GitOps with Argo CD or Flux, cluster security, upgrades and GPU workloads, with dedicated Kubernetes engineers or project delivery.
DevOps and CI/CD
DevOps and CI/CD services: pipelines, Terraform infrastructure as code, observability, SRE and on-call, DevSecOps, platform engineering and FinOps, with dedicated DevOps and SRE engineers or ongoing DevOps work.
Cybersecurity and pentesting
Cybersecurity and penetration testing services: web, mobile, API, network and cloud pentests, secure code review, SOC and incident response, ISO 27001 and SOC 2, with dedicated security engineers or defined projects.
IT infrastructure
IT infrastructure and system administration services: Windows and Linux servers, networks, Microsoft 365 and Entra ID, virtualisation, backups and telecom, with dedicated system administrators or ongoing support.
Site reliability engineering
Site reliability engineering services: SLOs, OpenTelemetry observability, on-call and incident management, load testing, disaster recovery and chaos engineering, with dedicated SRE engineers or project delivery.
Platform engineering
Platform engineering services: internal developer platforms, Backstage portals, golden paths and templates, self-service infrastructure and Kubernetes platforms, with dedicated platform engineers or project delivery.
FinOps
FinOps and cloud cost optimisation services: cost allocation, rightsizing, savings plans and reservations, Kubernetes, data and AI costs, budgets and anomaly alerts, with dedicated FinOps engineers or project delivery.
Terraform and IaC
Terraform and infrastructure as code services: Terraform and OpenTofu modules, imports, plan and apply pipelines, drift control, policy as code and Ansible, with dedicated Terraform engineers or project delivery.
Linux administration
Linux administration services: Ubuntu, Debian, RHEL, Rocky Linux and AlmaLinux servers set up, patched, hardened, monitored and backed up, and end-of-life upgrades, with dedicated Linux administrators or ongoing support.
Network engineering
Network engineering services: routing and switching, firewalls, SD-WAN and zero-trust access, cloud networking, Wi-Fi and automation on Cisco, Juniper and Fortinet, with dedicated network engineers or project delivery.
Cloud security
Cloud security services: CSPM and CNAPP, IAM reviews, Kubernetes security, network and data protection and cloud compliance on AWS, Azure and Google Cloud, with dedicated cloud security engineers or project delivery.
SOC and security monitoring
SOC as a service and security monitoring: managed SOC, SIEM deployment, log onboarding, detection engineering, EDR, threat hunting and incident response retainers, with dedicated SOC analysts or ongoing monitoring.
Security compliance
Security compliance and audit readiness: ISO 27001, SOC 2, GDPR, PCI DSS, HIPAA, NIS2 and DORA controls, gap assessments and audit evidence, with dedicated compliance engineers or a readiness project.
Questions about cloud architecture and consulting
Which industries do your cloud architects work in?
Mostly fintech and banking, where availability, audit trails and data residency shape the design; AI and data products, with GPU capacity and data platforms to plan; enterprise SaaS, with multi-tenant designs and cost per customer; healthcare, with patient data under HIPAA and GDPR controls; e-commerce and retail, built for sales peaks; security companies; and travel and hospitality platforms.
AWS, Azure or Google Cloud?
Usually the one your team, your customers and your existing contracts already point to, because identity, skills and discounts carry over. Where the choice is open, we compare the services you would use, the run cost and the skills you have, and set out the trade-offs in writing. We design and build on all three.
Do you also build what you design?
Yes. Cloud, DevOps and development engineers come from the same company, so a design can go straight into a build with the architect staying on as technical lead, or be handed to your own team as code and documents.
How quickly can cloud architects start?
When the right cloud architect is available, the start is gated only by your interview and the NDA and IP assignment. Otherwise we run a search, which typically produces candidate profiles within two to three weeks, and nobody starts until you have said yes.
How do we hire cloud architects through BigTree108?
Tell us the work, the seniority and the hours you need. We propose one or two people with their profiles, you interview them the way you would interview your own hire, and you sign one agreement with BIG TREE 108 LLC and receive one invoice a month.
Who owns the work they produce?
You do. Every specialist has a signed contract with BigTree108 that assigns all work product to the company, and our agreement with you assigns it onward. Code, designs and documents are delivered into your own repositories and tools, not kept where only we can change them.
Planning a new cloud architecture or a migration?
Tell us what you run today, where you want to be and any deadline or audit ahead. You get an answer within one business day: a proposed scope, a first view of the options, or candidate profiles.