Cloud InfrastructureCompleted 22 August 2025

Cloud Security Foundation & Zero-Trust Network for FinTech Scale-up

Designed and stood up a production-grade, SOC 2-ready multi-account AWS foundation with zero-trust network segmentation, automated compliance evidence, and a secure CI/CD pipeline supporting 40+ weekly deployments.

AWSTerraformKubernetes (EKS)IstioHashiCorp VaultAWS GuardDutyDatadogGitHub Actions

Duration10 weeks

Budget$142,000

Team Size5 people

RegionNorth America

Key Features & Deliverables

Multi-account AWS landing zone with 12 logically separated environments
Zero-trust service mesh with mTLS between internal services
Secrets brokering via Vault with short-lived
just-in-time credentials
Continuous compliance monitoring with automated control evidence
Secure CI/CD with SBOM generation
SAST
DAST
and dependency scanning
WAF + DDoS + anomaly detection with 24/7 alert routing
Runbooks
tabletop exercises
and incident response playbooks delivered

PeerHub Ltd had scaled product engineering faster than platform maturity and was preparing for SOC 2 Type II. Our AWS footprint was a single account with broad network access, a single admin IAM role shared across 18 engineers, and secrets stored directly in CI configuration.

Landing Zone & Segmentation

We established a multi-account cloud foundation with 12 logically separated environments, implemented private VPC networking with no default internet egress, and introduced a least-privilege IAM model using dedicated roles with scoped session policies.

Zero-Trust & Secure Delivery

We implemented an Istio service mesh to secure internal service-to-service communication using mutual TLS (mTLS). We replaced static secrets with Vault-managed, short-lived credentials. We also rebuilt our CI/CD pipeline to generate Software Bills of Materials (SBOMs), perform static code and dependency analysis, and automatically block deployments when new security findings were detected unless an approved security waiver was in place.

Challenges

The team was moving 30+ deployments a week into a shared AWS account using a common admin role. Broad network access meant any compromised service could reach any other. Secrets were stored in CI configuration, and there was no way to prove who did what, when, and from where for audit purposes.

Solution & Outcomes

Landing zone delivered in four weeks without blocking a single release. We migrated service-by-service into the segmented environment, introduced short-lived credentials, and rebuilt the delivery pipeline. Controls were mapped against SOC 2 and GDPR requirements with automated evidence capture.

Measured Impact

Our platform has consistently supported more than 40 deployments per week without a security-related rollback for seven consecutive months, demonstrating that we were able to significantly strengthen our security posture without compromising development velocity.