Backend Architecture
15 articles on Backend Architecture.
Technical SEO for Next.js Developers: The Complete 2026 Guide
Technical SEO in 2026 is a engineering problem: metadata APIs, JSON-LD entities, honest sitemaps, AI crawler policies, and Core Web Vitals. This guide shows the exact Next.js App Router implementation I run in production — the same setup that got a portfolio site indexed by Google, Bing, and AI search engines.
June 10, 2026·8 min readDesigning Async, Long-Running APIs for AI Agents
AI agents kick off tasks that run for minutes — synchronous request/response breaks down fast. A practical guide to the async job pattern: 202 + status URLs, polling vs webhooks vs streaming, durable queues, and idempotent resumption.
May 30, 2026·6 min readVector Databases for Backend Engineers: RAG Without the Hype
What a vector database actually is, how similarity search and ANN indexes (HNSW) work, when you need a dedicated vector DB vs pgvector, and how to build a production RAG pipeline that stays fast and accurate — explained for backend engineers.
May 28, 2026·6 min readMCP vs Direct API Calls: The Token-Efficiency Debate (2026)
MCP exploded to 10,000+ servers, but in 2026 many teams are moving back to direct API calls and CLIs over token cost — ~200 tokens per CLI command vs 32,000–82,000 for MCP. A clear-eyed breakdown of when MCP is worth it and when it isn't.
May 26, 2026·5 min readPutting an ML Model in Production: A Backend Engineer's Guide to Inference APIs
Serving a model is a backend problem, not a data-science one. A practical guide to production inference APIs — latency vs throughput, batching, GPU concurrency, caching, autoscaling cold starts, and the failure modes that don't exist in a notebook.
May 24, 2026·6 min readBuilding Backends for AI Agents: Idempotency, Retries & State (2026)
AI agents retry, run for minutes, and call your APIs in unpredictable loops. The backend is where agent reliability lives. A practical guide to idempotency, safe retries, durable state, and observability for agent-facing systems in 2026.
May 22, 2026·7 min readIdempotency Keys: How We Stopped Double-Charging Customers
A retry on a slow payment request charged a customer twice. A practical guide to idempotency keys — how to design the key, store it atomically, handle in-flight duplicates, and make any unsafe POST safe to retry.
March 18, 2026·6 min readWhen Our Kafka Consumer Lag Hit 2 Million: A Debugging War Story
Our order events fell 2 million messages behind and nobody noticed for hours. A practical walkthrough of diagnosing Kafka consumer lag — partitions, rebalances, poison messages — and the fixes that got us back to real time.
February 20, 2026·6 min readThe Cache Stampede That Took Down Our API: A Redis p99 War Story
A single expiring Redis key sent 4,000 requests to PostgreSQL at once and spiked our p99 latency to 9 seconds. Here's how cache stampedes happen, how we debugged ours, and the locking + jitter fixes that cut p99 by 80%.
February 10, 2026·7 min readBuilding AI-Native Backends: Architecture for Autonomous Agents in 2026
Complete guide to designing backend systems for AI agents - event-driven architectures, MCP protocol, vector databases, agent governance, and production patterns for 2026.
December 19, 2025·11 min readDatabase Connection Pooling: The Performance Fix That Saved Our Production
How I learned about connection pooling after our PostgreSQL database crashed under load. Practical guide with real configurations from handling millions of healthcare queries.
December 19, 2025·10 min readDatabase Sharding & Partitioning: Complete Advanced Guide for Scale
Master horizontal scaling with database sharding and partitioning strategies. Learn consistent hashing, shard key selection, rebalancing, and PostgreSQL partitioning for billion-row tables.
December 19, 2025·11 min readgRPC vs REST vs GraphQL: Performance Deep Dive with Benchmarks
Comprehensive performance comparison of gRPC, REST, and GraphQL. Real benchmarks, latency analysis, throughput testing, and when to use each protocol in production systems.
December 19, 2025·9 min readMessage Queues: RabbitMQ vs Redis Streams vs Kafka - Complete Comparison
Deep comparison of RabbitMQ, Redis Streams, and Apache Kafka for message queuing. Performance benchmarks, use cases, and production patterns for choosing the right message broker.
December 19, 2025·11 min readRate Limiting & API Gateway Patterns: Production Implementation Guide
Master API rate limiting with token bucket, sliding window, and distributed algorithms. Implement Kong, Nginx, and custom rate limiters with Redis for high-traffic production systems.
December 19, 2025·12 min read