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Chronology
Insights Archive
A full index of our publications sorted chronologically by year and month.
2026
August
RAG Is Not a Silver Bullet: 7 Failure Modes We Hit Shipping a Production Retrieval Pipeline
AI & LLMs
9 min read
Why 'Tell Me About a Time You Failed' Trips Up Senior Engineers (and How to Actually Answer It)
Career & Interview
7 min read
Designing a Distributed Rate Limiter: Token Bucket, Sliding Window, and the Redis Trade-off Nobody Mentions
System Design
9 min read
Kubernetes Pod Autoscaling: HPA, VPA, and KEDA — When Each One Actually Helps
Cloud Computing
8 min read
July
DeepSeek-R1 Architecture: How Mixture of Experts (MoE) & Reasoning Fine-Tuning Scale Intelligence
AI & LLMs
11 min read
Transformer Attention Mechanisms: Scaled Dot-Product vs Multi-Query Attention (MQA)
AI & LLMs
9 min read
RAG Cache Strategies: Semantic Caching with Redis and Sentence Transformers
AI & LLMs
8 min read
Agentic RAG with Router Agents and Dynamic Tool Calling
AI & LLMs
9 min read
Direct Preference Optimization (DPO) vs RLHF: Simplifying Alignment for LLMs
AI & LLMs
9 min read
Prompt Security: Defending Against Indirect Prompt Injection in Production LLM Apps
AI & LLMs
8 min read
XGBoost vs LightGBM: Benchmarking Tabular Data Processing Speed & Accuracy
Data Engineering
8 min read
MLOps Model Registry Patterns: Tracking Artifacts with MLflow & S3
Data Engineering
8 min read
Data Drift Detection in Production ML: Population Stability Index (PSI) & Monitoring
Data Engineering
8 min read
Building CDC Ingestion with Apache Debezium, Kafka, and StarRocks
Data Engineering
10 min read
Apache Iceberg vs Delta Lake: Comparing Table Formats for Cloud Data Lakes
Data Engineering
10 min read
Parquet File Format Deep Dive: Row Groups, Dictionary Encoding, and Snappy Compression
Data Engineering
8 min read
Real-Time Stream Processing with Apache Flink & Kafka: Event Time vs Processing Time
Data Engineering
9 min read
Designing a Real-Time Collaborative Whiteboard canvas with WebSockets & Yjs
System Design
10 min read
CQRS and Event Sourcing: Building Immutable Audit Logs with EventStoreDB
System Design
9 min read
Designing a Distributed Notification System (Email, SMS, Push) with BullMQ and Redis
System Design
9 min read
Post-Mortem: How a 2-Line Config Change Brought Down Our Search Cluster for 42 Minutes
System Design
7 min read
Zero-Downtime Database Migrations: The Expand-Contract Pattern in Production
System Design
8 min read
Zero Trust Cloud Security: Enforcing WireGuard & Tailscale Mesh Networks for Microservices
Cloud Computing
9 min read
Kubernetes Pod Lifecycle & Graceful Shutdown: Handling SIGTERM vs SIGKILL
Cloud Computing
8 min read