All Posts
43
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System Design: LRU and LFU Cache
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System Design: Rate Limiter
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System Design: Digital Wallet
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System Design: Fraud Detection System
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System Design: Payment Gateway
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System Design: URL Shortener
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Microservices Patterns: Saga, CQRS, Event Sourcing, BFF, and More
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Engineering Leadership Trade-offs: Build vs Buy, Tech Debt, and Rewrite vs Refactor
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Data Pipeline and Analytics: OLTP vs OLAP, Batch vs Streaming, CDC
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Testing Strategy: Test Pyramid, Contract Testing, and Coverage Pragmatics
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Build, Deploy, and Release: Trunk-Based Dev, Deployment Strategies, Zero-Downtime DB Migrations
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Cloud and Infrastructure: AWS vs GCP vs Azure, Kubernetes vs Serverless
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Security and Authentication: JWT, OAuth2, and Secrets Management
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Observability: Logs, Metrics, Traces, and Alerting
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Reliability and Resilience: Circuit Breakers, Retries, SLOs, and Failure Modes
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Scaling Strategies: A Decision Framework
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Consistency, Availability, and the CAP/PACELC Trade-off
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Microservices vs Monolith: Making the Right Architecture Call
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API Design: REST vs GraphQL vs gRPC
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Messaging and Event-Driven Architecture: Kafka vs RabbitMQ vs SQS
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Caching Strategies: Placement, Patterns, and Pitfalls
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NoSQL Families: Choosing the Right Tool
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SQL Flavors: Postgres vs MySQL vs SQL Server
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SQL vs NoSQL: Making the Right Call