Blog — Page 42 of 53
Browsing page 42 of 53 — 634 articles and counting.
Designing a Service Mesh: Traffic Routing, Observability, and mTLS for Microservices
A production guide to service mesh architecture covering the sidecar proxy pattern, traffic management at the mesh layer, mutual TLS for zero-trust networking, and distributed tracing propagation. Includes TypeScript examples and honest tradeoffs vs. application-level implementations.
Designing a Social Feed System: Fan-Out Strategies, Ranking, and Real-Time Updates at Scale
A production-focused system design walkthrough for building a social feed at scale. Covers fan-out on write vs. fan-out on read, ranking algorithms, WebSocket push, storage layout, cache warming, and the celebrity problem with concrete TypeScript examples.
Designing an Image Processing Pipeline: Uploads, Thumbnails, and On-the-Fly Transformations at Scale
How to architect a production image pipeline from upload to CDN delivery. Covers presigned upload flows, async thumbnail generation, on-the-fly transformation with CDN caching, storage strategies for S3 and R2, format selection between WebP and AVIF, and the cost tradeoffs between pre-generation and lazy generation.
Usage-Based Billing Architecture: Metering, Aggregation, and Invoice Generation for API Products
A comprehensive guide to building production-grade usage-based billing for API products. Covers the metering pipeline, idempotent event recording, deduplication, real-time vs. batch aggregation, tiered pricing engines, invoice generation, and the observability needed to catch discrepancies before customers do.
Building a Developer Portal That Converts: API Docs, Sandboxes, and Onboarding Flows
A practical architecture guide for developer portals that drive API adoption. Covers interactive OpenAPI documentation, sandbox environments, SDK generation, authentication onboarding, usage dashboards, and the DX metrics that reveal where developers actually abandon the funnel.
Cloudflare Durable Objects in Practice: Building Stateful Edge Applications
A practical guide to Cloudflare Durable Objects: how the actor model works at the edge, when to use them for rate limiting, collaborative editing, game state, and session management, with TypeScript code for storage, alarms, and WebSocket hibernation.
AI-Powered Testing: LLM-Generated Test Cases, Visual Regression, and Autonomous QA Pipelines
How to use LLMs to generate meaningful test cases, build visual regression systems that understand intent, and construct autonomous QA agents that navigate real applications. Includes TypeScript examples, architecture patterns, and the real production limitations you need to plan around.
Building a Recommendation Engine: Collaborative Filtering, Vector Similarity, and Real-Time Personalization in Production
Recommendation systems in production are rarely just matrix factorization. This guide covers collaborative filtering, embedding-based similarity, cold start strategies, real-time vs batch pipelines, feature stores, A/B testing, and low-latency serving architecture with TypeScript examples.
Building LLM-Powered Internal Tools: Natural Language to SQL, Document Q&A, and Workflow Automation
A practical guide to building LLM-powered internal tools that work in production. Covers natural language to SQL, document Q&A with RAG and access control, and LLM-driven workflow automation, with TypeScript examples and honest failure mode analysis.
Cost Optimization for Cloud Infrastructure: Spotting Waste, Right-Sizing Resources, and Serverless Economics
A practical guide to reducing cloud infrastructure costs without sacrificing reliability. Covers idle resource identification, right-sizing methodology, serverless cost modeling, reserved instance math, and a monthly review process for small teams.
DNS Architecture for Production Systems: Record Types, Failover, CDN Routing, and Debugging Resolution
Most engineers treat DNS as a lookup table and move on. This guide covers the resolution chain, TTL implications, every record type worth knowing, DNS-based failover, GeoDNS routing, CDN integration, DNSSEC, and a practical debugging toolkit with dig commands.
SLIs, SLOs, and SLAs in Practice: Designing Reliability Targets for Startup Engineering Teams
SLIs measure the thing, SLOs set the target, SLAs are the business contract. This covers how to choose the right SLIs for different service types, set achievable SLO targets, implement error budget policies, instrument SLIs in TypeScript, and build burn-rate alerts that actually fire at the right time.