Project Architectures
Real-World Systems
for DevOps Interviews
Production architectures from companies like Zepto, Razorpay, and Flipkart -- explained with components, trade-offs, and the exact interview angles they test.
NETFLIX
Netflix System Architecture
How Netflix serves 270M users across 190 countries. Microservices, Chaos Engineering, multi-region active-active, and the Zuul API gateway that handles 2M requests per second.
SPOTIFY
Spotify Engineering Architecture
How Spotify scaled to 600M users with the Squad model, Backstage developer portal, GCP-native infrastructure, and the Confidence CI/CD platform that deploys 250 times a day.
AWS
4-Tier Production App: DNS to Database
Complete end-to-end production architecture: DNS resolution to database writes. Route53 to CloudFront to WAF to ALB to EKS to PostgreSQL. The blueprint most funded startups run in production.
K8S
4-Tier with Service Mesh and Observability
Production-grade 4-tier setup with a service mesh layer: DNS to Ingress to Istio to microservices. Full observability with Prometheus, Grafana, Jaeger tracing, and OpenTelemetry from day one.
AWS
Serverless Architecture on AWS
Event-driven app with Lambda, API Gateway, and DynamoDB. Zero server management, infinite scale on demand.
DR
Multi-Region Disaster Recovery
Active-passive DR across two AWS regions with RTO under 30 minutes. The question that separates senior engineers.