Secure & Compliant AWS Infrastructure for a FinTech SaaS

Secure & Compliant AWS Infrastructure for a FinTech SaaS

The Challenge

A growing FinTech SaaS platform needed to evolve beyond its MVP to meet production-grade standards. Key business drivers included:

  • Migration to a highly available and fault-tolerant infrastructure
  • Compliance with SOC 2, GDPR, and DORA
  • Secure, isolated environments for each tenant
  • Automation of infrastructure provisioning and deployment pipelines
  • Readiness for upcoming audits and scalability demands
Secure & Compliant AWS Infrastructure for a FinTech SaaS

Solution

Advascale designed and implemented a fully automated cloud environment on AWS using best practices for security, compliance, and maintainability. Highlights include:

  • Infrastructure-as-code with Terraform and Terragrunt

  • Full tenant isolation via separate VPCs or AWS accounts

  • HA architecture across three Availability Zones

  • SOC 2-ready controls: AWS GuardDuty, Inspector, Security Hub, CloudTrail, and Config

  • CI/CD automation: GitHub Actions for builds, ArgoCD for deployments

  • Observability stack with CloudWatch and Datadog

  • Enforced runtime security via sealed-secrets and seccomp profiles

Key Technologies & Implementation Highlights

  • Networking: Multi-AZ VPC with public/private subnets, NAT Gateways, and VPC Endpoints

  • Compute & Orchestration: Amazon EKS with isolated namespaces per component, deployed via Kustomize

  • Storage & Data: MongoDB Atlas with encrypted storage and VPC peering

  • Containers: Amazon ECR with vulnerability scanning and lifecycle policies

  • Messaging & Caching: RabbitMQ (Amazon MQ) and Valkey (Redis-compatible), deployed in private subnets with encryption

  • Frontend Delivery: Static frontend hosted in S3 with CloudFront distribution

  • CI/CD: GitHub Actions for pipelines, ArgoCD for Kubernetes GitOps deployments

  • Monitoring & Logging: CloudWatch for logs, Datadog for metrics and alerting

Results

  • Fully automated tenant provisioning and deployment pipeline

  • Infrastructure validated for SOC 2 and regulatory compliance

  • Hardened security posture and clear audit traceability

  • Increased DevOps agility and reduced operational overhead

  • Scalable foundation for future customer onboarding

About Advascale

Advascale is an expert in resolving clients' issues connected with scalability, fault-saving, managing app environment, and cost optimization. By designing the most effective cloud architecture environments, developing migration strategies, and building new infrastructure, Advascale helps to meet clients' goals. Advascale is an AWS partner within Advanced Tier Level.