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Zillion's AWS Cloud Foundations & Landing Zone service establishes the secure, compliant, multi-account AWS infrastructure your organization needs to migrate, modernize, and operate at scale — without the risk of building governance in after the fact.
We design and deploy a structured AWS Organizations hierarchy using AWS Control Tower, with Organizational Units (OUs) for Security, Log Archive, Network, Shared Services, Workloads, and Sandbox. Service Control Policies (SCPs) enforce guardrails across every account automatically.
Federation via IAM Identity Center (AWS SSO) with SAML 2.0 / SCIM integration to your existing corporate IdP. Least-privilege roles, cross-account access via STS AssumeRole, MFA enforcement, and a documented break-glass procedure for emergency access.
An immutable, organization-wide CloudTrail delivered to a dedicated Log Archive account in tamper-resistant S3. AWS Config rules baseline compliance posture from day one. All findings aggregate to a dedicated Security Tooling account.
Hub-and-spoke network design using Transit Gateway, with Shared VPC, VPC Endpoints and PrivateLink to eliminate unnecessary public internet exposure. Direct Connect or Site-to-Site VPN integration for hybrid connectivity. Route 53 private DNS and centralized egress controls.
Organization-wide enablement of Security Hub, GuardDuty, and Inspector — all delegated to and aggregated in a central Security Tooling account. AWS KMS for encryption at rest, Secrets Manager for secrets rotation, and CloudWatch alarms for critical events including root account usage.
All configuration is delivered as versioned, peer-reviewed IaC (Terraform, CloudFormation, or AWS CDK per your standard). Every resource is tagged, every change is traceable. You own the code. We provide a fully documented, as-built environment and operational runbooks on day one of handover.
This engagement is designed for mid-market and enterprise organizations that need a production-grade AWS foundation — especially those operating in regulated industries where security posture, audit readiness, and compliance controls are non-negotiable from day one.
Banks, credit unions, fintech, and insurance organizations requiring strong identity controls, encryption, immutable audit logging, and alignment to frameworks such as NIST, SOC 2, PCI-DSS, and FFIEC guidance.
Federal agencies and state/local government entities migrating to AWS who require FedRAMP-aligned controls, GovCloud readiness, and strict data residency, access control, and audit traceability requirements.
Healthcare systems, payers, and life sciences organizations building on AWS where HIPAA controls, PHI data segregation, encryption at rest and in transit, and continuous compliance monitoring are mandatory.
Large enterprises initiating cloud migration or modernization programs who need a governed foundation in place before workloads move — avoiding the costly technical debt of retrofitting governance later.
Organizations undergoing M&A activity, divestitures, or IT separation events that need a clean, well-governed AWS environment stood up rapidly with a clear account and identity model from the start.
Companies that have outgrown a single-account AWS setup and need to restructure into a scalable multi-account architecture with proper cost allocation, team isolation, and operational guardrails.
Every engagement follows Zillion's proven six-phase delivery model. Each phase has defined inputs, deliverables, acceptance criteria, and a named team. You always know where we are, what's coming next, and who is accountable.
Stakeholder alignment, scope confirmation, access setup, and communications cadence established. We finalize the SOW, RACI, RAID log, and success criteria with your team before any build activity begins.
Current-state review of your AWS environment, IdP, network topology, workload inventory, and compliance requirements. We identify constraints, risks, and dependencies before design begins — not during build.
Reference architecture, account/OU strategy, network design, identity model, and security baseline — all documented and customer-approved before build begins. IaC approach and implementation backlog finalized.
AWS Organizations, Control Tower, account baseline, SCPs and guardrails, networking hub, centralized logging, Security Hub, GuardDuty, and monitoring — all deployed via peer-reviewed Infrastructure-as-Code. Weekly status and milestone gates throughout.
Security validation checks, access tests, logging and alerting verification, cost guardrail confirmation, and DR basics where applicable. A formal validation report and punch list are produced before handover is declared.
Structured knowledge transfer: admin walkthrough, runbook review, training sessions, credential and access transition. All Zillion access is cleanly removed at closeout unless a managed services engagement is contracted. Final closeout report, lessons learned, and customer feedback survey completed.
Every engagement includes a dedicated handover phase with a walkthrough session, runbooks written for your team's operational level, recorded knowledge transfer, and a formal admin credential transition. We don't close an engagement until your team is operationally ready. A customer satisfaction survey and executive readout are completed at closeout, and action items from feedback are tracked to resolution.
Our engagement is built entirely on AWS-native services, AWS Well-Architected principles, and Zillion's Cloud Migration Methodology. No proprietary tools. No lock-in beyond what you've already chosen.
Every design decision is validated against the five pillars of the AWS Well-Architected Framework — Operational Excellence, Security, Reliability, Performance Efficiency, and Cost Optimization. Risks are identified, documented, and mitigated before they become production incidents.
Security Hub, GuardDuty, Config, CloudTrail, Inspector, and KMS are enabled organization-wide from day one — not added later. SCPs enforce guardrails at the OU level so no individual account can violate baseline security policy, regardless of who has access to it.
A properly built landing zone accelerates every workload migration that follows. Account vending via Service Catalog, pre-built IaC modules, and standardized network patterns mean your application teams can move into governed, ready-to-use accounts on day one — rather than waiting weeks for each environment to be stood up manually.
AWS Budgets, tagging standards, and cost allocation guardrails are established as part of the foundation — not added as a cleanup exercise later. FinOps checkpoints at each milestone ensure cost visibility scales with your footprint from the start.
For regulated industries, we map baseline controls to your compliance framework (NIST 800-53, SOC 2, PCI-DSS, HIPAA, FedRAMP) during the Design phase. AWS Config rules, CloudTrail, and Security Hub findings are configured to produce the evidence your auditors need — before you onboard your first workload.
All IaC, runbooks, architecture documentation, and configuration live in your repositories and your accounts from day one. Zillion accesses your environment via temporary cross-account IAM roles — never long-lived credentials. At engagement close, our access is fully removed and you operate independently.