Product Engineer

Building software that
actually works at scale.

I'm K N Anantha Nandanan — a software engineer focused on scalable backend systems, DevOps, and applied AI. Currently building QuestCraft, an LLM-powered platform that helps teachers create better assessments, faster.

I write about things I learn, systems I build, and patterns worth sharing.

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Writing

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Mar 3
The Anatomy of a Bulletproof Pitch - 5 Lessons from Presenting QuestCraftA practical guide on what I learned about crafting and delivering a compelling pitch deck, from structuring slides to handling the Q&A.
presentation startup saas pitch-deck lessons-learned
Dec 29
Your Users Will Break Your App (and That’s a Good Thing)Real users don’t behave like test cases, and that’s where the real learning begins. This blog explores how user feedback and unexpected behavior shape better UX and a stronger SaaS product.
SaaS UX user feedback product development startup
Dec 28
VPS Setup ChecklistThis is a blog on the general checklist that I have come to follow while setting up a VPS
basics linux setup self-host
Nov 17
Setting Up Coolify with a Custom Domain and SSL Certificates Using Traefik and Cloudflare - A Comprehensive GuideSetting up a custom domain and SSL certificates for Coolify with Traefik and Cloudflare.
coolify traefik cloudflare acme self-host devops
Jun 16
Building an LLM Chatbot with Django, Django Channels, DRF, and LangchainLearn how to create a powerful and interactive LLM Chatbot using Django, Django Channels, Django Rest Framework, and LangChain for seamless real-time communication and API integration
LLM Django Django-Channels DRF LangChain Chatbot Real-time-communication API
Jun 4
Unleash the Power of the Awesome AWK ~ A Simple GuideLearn the basics of AWK, a powerful text processing tool used for data manipulation, string processing, and pattern scanning. Discover how to filter and transform data using simple and intuitive code examples.
tutorial CLI text-processing

Projects

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Live

QuestCraft

LLM-powered platform that helps teachers create better assessments more efficiently.

DjangoLangChainPostgreSQLDockerRabbitMQNext.jsLogtoRedisCelery

Live

Reg-Exp-Lain

Interactive regular expression visualizer built with Next.js and React Flow. Visualize regex as flow diagrams, test strings in real time, and get step-by-step explanations.

Next.jsReact 19React FlowTypeScriptTailwind CSSZustandregjsparser

Live

Json_To_Many

Python package for seamless conversion from JSON to Markdown, XML, and CSV. Built with uv and Ruff for developers and data workflows.

PythonuvRuff

Building software thatactually works at scale.

Writing

Projects

Building software that
actually works at scale.