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Lead Lookup System Design (case study)

This case study explains how to design a high-scale lead lookup system for 200M users, where the main requirement is fast lookup by phone number, email address, or SSN while still supporting contact reassignment and full contact history.

Jan 12 2 case-study postgresql clickhouse

Building Multi-Tenant Support in a User-Based SaaS App (case study)

This case study explains how a simple user-owned SaaS application was migrated to a multi-tenant architecture that supports organizations, teams, shared resource ownership, tenant isolation, and role-based permissions.

Feb 14 saas case-study rdbms

DynamoDB Data Modeling: Blog Platform Example (case study)

DynamoDB Data Modeling: Blog Platform Example (case study)

This case study describes a production blog platform backed entirely by Amazon DynamoDB . The system serves typical blog workloads such as “latest posts”, “most popular posts”, “posts by author”, and “posts by tag”, while also supporting administrative queries like user moderation and contact messag

Jan 19 3 dynamodb database nosql

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