Hire a Senior Cloud Engineer: Multi-Cloud Architecture, Terraform IaC & FinOps Cost Optimization (AWS & GCP)

Organizations scaling SaaS platforms, AI workloads, and financial or healthcare backends need a Senior Cloud Engineer who combines hands-on application engineering with production infrastructure design. I am Aldian Fazrihady, a Google Cloud Certified Professional Cloud Architect and Professional Data Engineer with 15+ years of production experience across Google Cloud Platform (GCP) and Amazon Web Services (AWS).

1. Core Cloud Engineering Architecture: Zero-Downtime & Cost-Optimized Infrastructure

Many engineering teams overspend by 40%–70% on idle compute instances, unpruned public IPv4 addresses across availability zones, and oversized NAT gateways. As a hands-on Cloud Engineer, I architect infrastructure that scales to zero when idle and scales horizontally within seconds under burst traffic:

```mermaid
graph LR
    A["Cloudflare / CloudFront CDN"] --> B["Regional Load Balancer / Cloud Run Ingress"]
    B --> C["Stateless Containers (Cloud Run / AWS ECS Fargate)"]
    C --> D["Managed PostgreSQL + pgvector (Cloud SQL / RDS)"]
    C --> E["Redis / Memorystore (Cache & Celery Broker)"]
    C --> F["Event Queue (Cloud Tasks / Pub/Sub / AWS SQS)"]
```

2. Production Terraform & Dynamic AWS/GCP Cost Hygiene

Every firewall rule, VPC subnet, IAM least-privilege binding, and autoscaling policy should be codifed in version-controlled Infrastructure as Code (Terraform) and automated deployment scripts:

• Minimal Multi-AZ ALB Subnet Synchronization: Since AWS charges $0.005/hour per public IPv4 address attached to an internet-facing Application Load Balancer across Availability Zones, dynamically binding only the active instance AZs plus one standby AZ cuts ALB IPv4 overhead by up to 66% while preserving multi-AZ high availability.
• Cross-Cloud Identity Federation & Least Privilege: Workload Identity Federation and scoped service account bindings between GCP Cloud Run, Cloud Firestore, Identity Toolkit, and AWS SES/S3 without long-lived static root credentials.
• Zero-Downtime Rolling AMI & Container Pipelines: Automated Cloud Build and GitHub Actions pipelines that compile static assets, run database migrations safely, verify target group health checks, and invalidate CDN edge caches automatically.

3. What a Senior Cloud Engineer Can Deliver in a 1-Day Sprint ($100 / Rp 1,000,000)

• Cloud FinOps & Bill Reduction Audit: Identify and eliminate idle NAT gateways, unattached Elastic IPs, oversized RDS/Cloud SQL tiers, and redundant ALB subnets.
• Docker & Cloud Run / AWS ECS Migration: Containerize a monolithic Django, FastAPI, Node.js, or Go service with multi-stage Docker builds and deploy it to auto-scaling serverless containers.
• CI/CD & SSL/DNS Automation: End-to-end GitHub Actions or Google Cloud Build deployment pipelines with Cloudflare/Route53 DNS and automated health verification.