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NKCODE
Portrait of Nitin Kaushal
Serverless on AWS GenAI and RAG Agents and MCP
New Mastering RAG Engineering

Hey I'm NITIN

Engineering Manager and Solution Architect

I design serverless, data-heavy systems on AWS and lead the teams that ship them. Lately I build GenAI, RAG and agent-based systems, and I share what I learn as free guides and tools.

Read the guides Connect on LinkedIn GitHub
14+years building software
10+services shipped on AWS and GCP
40%faster incident triage
80%shorter delivery cycles

AWS CertifiedGenerative AI Developer, Professional

Claude Certified ArchitectProfessional and Foundations

Excellence AwardToyota Motor North America, 2025

Delivered for Toyota · Pearson · Honda · Samsung · Hitachi

2 npm packages 7 guides 4 free tools 58 downloads

Open source · npm

resili

A modular TypeScript toolkit for Node.js. It keeps APIs and AI calls predictable when a dependency is slow, rate-limited, or down, with retry, timeout, circuit breaker, bulkhead, and rate limiting. Adapters cover Fetch, Axios, Undici, OpenAI, Anthropic, and Gemini.

Open resili GitHub

The library

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devStudio Developer utilities Open tool JsonDiff Studio JSON compare & diff Open tool TextStudio Text utilities Open tool LynkIN URL shortener Open tool

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A bit about me

I'm Nitin Kaushal, a System / Solution & Cloud Architect. NKCode.dev is where I share free notes on AWS, system design and AI, written for developers and anyone learning to code.

  • Cloud architecture
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NKCODE