Case Studies

Real-world architecture breakdowns — ByteByteGo-style. See Architecture/system_prompt for the note template and writelist for sources.

• Stripe Idempotency Keys — pillar-resilience
• Netflix Data Bridge: Connector Factory for Cassandra Data Movement — pillar-performance
• Stripe Connect: Fund Segregation with Allocated Balances — pillar-security
• Netflix's Nebula ArchRules: Architecture Governance Across Thousands of Repos — pillar-org-complexity
• Stripe: Graph Search and State Machines to Auto-Remediate a Global Database Fleet — pillar-operational-excellence
• Uber: Zone-Failure-Resilient OpenSearch — pillar-resilience
• Shopify: Replacing Redis with MySQL for Inventory Reservations — pillar-performance
• Netflix: Retiring a Homegrown Batch Scheduler for Kueue — pillar-org-complexity
• Netflix: Building a Real-Time Service Topology Map — pillar-operational-excellence
• Uber: GitFarm — Git as a Service for Large-Scale Monorepos — pillar-performance
• Uber: Scaling Verify with Wallet for Identity Verification — pillar-security
• Cloudflare: Scaling Security Insights to a 10x Increase in Global Scanning Capacity — pillar-performance
• Discord: Automating ScyllaDB Cluster Operations with the Scylla Control Plane — pillar-operational-excellence
• AWS: Hybrid Multi-Tenant Architecture for Stateful Services at Scale — pillar-org-complexity
• Stripe: Thin Events and Notification Handlers for Version-Stable Webhooks — pillar-resilience
• Uber: Scaling Exact COUNT(DISTINCT) for High-Cardinality Metrics — pillar-performance
• DoorDash: A Clusterless Feature Store Serving Layer — pillar-performance
• Airbnb: Evolving Data Architecture for a Multi-Product World — pillar-org-complexity
• Coinbase: Fragment APIs and Federated Identity at 1.5M Reads/Second — pillar-performance
• Canva: Stateless Session Cookies and Revocation at Hundreds of Millions of Users — pillar-security
• Pinterest: Resource Provisioner Pipeline — a Centralized Terraform Engine for Least-Privilege AWS at Scale — pillar-security
• Grab: Palana — a Secure Kubernetes Platform for Autonomous AI Agents — pillar-security
• Pinterest: Automated Schema Evolution in a CDC Ingestion Pipeline — pillar-operational-excellence
• GitHub: Rearchitecting for 30x Capacity Under Agentic-AI Load Growth — pillar-resilience
• Coinbase: When the Recovery Tooling Depends on What Just Broke — pillar-resilience
• Grab: Migrating a Petabyte-Scale Data Lake to Apache Iceberg — pillar-performance
• Slack: Eliminating Standing SSH Access from EMR Data Pipelines — pillar-security
• Box: Scaling Cross-Team Architectural Decisions with ITDAG — pillar-org-complexity
• Airbnb: Scaling the Identity Graph off a Vendor Graph Database — pillar-performance
• Slack: Whitecastle — Rebuilding Slack's Cloud Network to Escape the VPC Peering Trap — pillar-resilience
• Spotify: Random Access Parquet — Indexing the Data Lake for Online Point Queries — pillar-performance

Related

• Architecture Index