FinTech SaaS Platform architecture template
Secure financial platform with compliance, audit logs, and multi-currency. Generate a complete cloud architecture with cost estimates, Terraform, diagrams, and deployment workflows — on AWS, Azure, or GCP.
$400 – $1,200 / month on AWS
Typical production setup. Your actual cost is generated based on your specific configuration.
Architecture overview
Handles payment flows through PCI-compliant card processing, stores transactions in an encrypted multi-region database, and maintains tamper-evident audit logs with MFA-backed access and real-time fraud scoring.
~8 services
Sample architecture diagram
graph TD
A[Client] --> B[WAF + Shield]
B --> C[API Gateway]
C --> D[Lambda
Transaction]
D --> E[Aurora
Encrypted KMS]
D --> F[DynamoDB
Audit Log]
G[Cognito MFA] -.->|auth| CTerraform preview
Each generated workspace includes provider-aware Terraform starter modules, deployment variables, and environment notes for the selected cloud provider. This preview is intentionally short so the public page stays readable while still showing search engines the implementation artifact.
module "app_platform" {
source = "./modules/app-platform"
environment = "production"
region = var.primary_region
}
module "observability" {
source = "./modules/observability"
service_ids = module.app_platform.service_ids
}Production risks for this architecture
PCI DSS scope creep: adding new services that touch cardholder data without scoping review pulls them into compliance audit — maintain a strict network segment for card data flow
KMS key rotation complexity: rotating field-level encryption keys requires re-encrypting existing records — plan a migration strategy before your first key rotation is due
Audit trail gaps under high write load: DynamoDB throttling during transaction peaks can silently drop audit events — use DynamoDB Streams with a dead-letter queue to guarantee delivery