System Desgin
Human-in-the-Loop Approval Workflow for AI Agents
TL;DR – Human‑in‑the‑loop (HITL) checkpoints can stop >70 % of AI mishaps, according to Stanford HAI. – Choose Gatekeeper for tight safety (synchronous), Auditor for…
// author
Nilesh Raut
’m Nilesh, a Software Development Engineer with 2+ years of experience, specializing in Go, JavaScript, Python, Docker, Kubernetes, Git, Jenkins, microservices, and system design (LLD/HLD), backed by a strong foundation in data structures and algorithms. Alongside my engineering journey, I bring 4+ years of hands-on experience in SEO, where I’ve worked extensively on content strategy, keyword research, technical SEO, and organic growth, helping products and businesses scale efficiently by aligning solid technology with search-driven performance.
314 articles
leet code
Pgpool-II Best Practices for Distributed PostgreSQL
TL;DR – 5 Takeaways – Pgpool‑II sits between your app and PostgreSQL, handling connection pooling, read/write split, and HA failover. – The Watchdog process…
System Desgin
Scale LangChain.js Agents on Kubernetes Fast & Cheap
⚡ Hook: When the checkout page of a fast‑growing e‑commerce site suddenly returned “Service Unavailable” after a weekend spike, the ops team traced the…
leet code
Secure, Scalable API Gateway with Kong for Microservices
⚡ Opening Hook During a Black Friday sale, the e‑commerce platform nileshblog.tech saw traffic soar to 120 k RPS. Within seconds, its customer‑facing services returned 502…
System Desgin
AI Agent Integration Patterns for REST APIs & Microservices
TL;DR – AI agents need more than a raw OpenAPI spec; they require orchestration, adapters, and resiliency patterns. – Choose between synchronous REST calls…
leet code
Docker Swarm vs Kubernetes: Monitoring & Alerting Strategies
TL;DR Docker Swarm’s simplicity keeps metric volume low, but you lose fine‑grained process insight. Kubernetes produces 40‑60 % more time‑series data; plan for storage and…
System Desgin
Custom AI Agent & Function-Calling Framework with TypeScript
Hook: A customer‑support bot that promised “instant answers” stalled at the third user request, spitting out “I’m sorry, I don’t understand.” The failure traced…
leet code
Event‑Driven Notification Service with Go & WebSockets
TL;DR – Real‑time push beats polling by up to 80 % latency (Cloudflare, 2023). – Go’s goroutine model lets a single server juggle tens of thousands of…
System Desgin
Persistent Memory & Context for JavaScript Conversational AI
TL;DR – Stateless chat models forget most of the conversation after a handful of turns. – Adding a persistence layer (Redis, PostgreSQL JSONB, or…
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AI
Multi-Agent Systems Explained: How AI Agents Work Together (2026)
A clear, jargon-free explainer on multi-agent AI systems: how specialized agents coordinate, the three core architecture patterns, MCP vs A2A protocols, and when not…
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Tutorials
How to Run the Claude API in Node.js (2026 Step-by-Step Guide)
A complete, beginner-friendly guide to calling the Claude API from Node.js — SDK setup, your first request, streaming, multi-turn chat, error handling, and an…
leet code
Robust Health Checks for Python Microservices in Kubernetes
⚡ Opening Hook A fresh deployment of a Flask‑based order service went live at 02:13 AM. Within minutes the e‑commerce checkout stalled, customers saw “Service…
System Desgin
Cost Optimization for OpenAI Assistants API in Node.js
TL;DR – Quick Takeaways Keep Assistant threads short when possible; long‑lived threads inflate token counts. Cache recurring prompts and reuse completions to cut per‑call…
leet code
Best Multi-Region Kubernetes Secrets Management
⚡️ TL;DR – Treat secrets as short‑lived, rotating assets and never store them plaintext in git or container images. – Pick a single source‑of‑truth…
System Desgin
Vercel AI SDK vs LangChain.js: React AI Agent Comparison
TL;DR – Vercel AI SDK gives you a lean, edge‑first experience; launch a streaming chat UI in minutes. – LangChain.js shines when you need…
leet code
Build a CI/CD Pipeline with Tekton & ArgoCD – Kubernetes Native
TL;DR – Quick Takeaways Tekton + ArgoCD give you a fully declarative, Kubernetes‑native CI/CD stack that scales with your workloads. Separate concerns: Tekton runs the build‑test‑containerize…
System Desgin
Secure API Keys & Prompts in Client‑Side JS AI Agents
TL;DR – Never embed production API keys directly in browser‑side JavaScript. – Use a backend proxy or server‑less function to shield credentials. – Add…
leet code
Custom Operators for Managing Stateful Apps on Kubernetes
TL;DR – Quick Takeaways StatefulSets can spin up pods, but they stumble when a workload needs coordinated upgrades, backups, or external‑system integration. Operators embed…