Writing

Stories, Lessons
& Deep Dives

From failing exams in school to building AI systems at scale — raw personal stories and no-BS technical write-ups from my journey as a developer.

RC

Rugved Chandekar Full-Stack Developer — AI/ML Engineer — IEEE Author

25 posts 10 personal 15 technical 5 featured

Showing 25 articles

I Was Below Average in School — Here's What Changed Everything — Rugved Chandekar

Personal Featured

March 1, 2026 7 min read

I Was Below Average in School — Here's What Changed Everything

I used to score below 40% in most subjects — not because I lacked capability, but because I was studying out of fear. The shift happened when curiosity replaced pressure. This is that story, and the mindset that changed everything for my entire career.

Mindset Academics Growth

RAG Pipelines: From Theory to Production on AWS — Rugved Chandekar

Technical Featured

March 10, 2026 10 min read

RAG Pipelines: From Theory to Production on AWS

A deep-dive into Retrieval-Augmented Generation. How I built semantic search with OpenSearch, connected Amazon Bedrock LLMs, and deployed the whole system on AWS ECS Fargate — with real token cost breakdowns and architecture decisions explained.

RAG AWS LLMs OpenSearch

Java Was My First Programming Language — Rugved Chandekar

Personal

Jan 5, 2026 6 min read

Java Was My First Programming Language

Before Python, before AI, there was Java. The verbosity, the OOP principles, the cryptic NullPointerExceptions — Java taught me how to think like a programmer. And its strictness made me a better engineer than any "easy first language" ever could.

Java Beginners Programming

The Night I Discovered Machine Learning — Rugved Chandekar

Personal

Jan 28, 2026 5 min read

The Night I Discovered Machine Learning

It was 2 AM. A YouTube video about Netflix recommendations. The realization that machines could learn patterns from data — without being explicitly programmed. That one video completely rewired my career path forever.

Machine Learning AI Discovery

Curiosity Is My Biggest Advantage — Rugved Chandekar

Personal

Nov 20, 2025 5 min read

Curiosity Is My Biggest Advantage — I Always Ask Why

Most engineers learn HOW to use transformers. I obsessed over WHY they work. That habit of going one level deeper than most — into cosine similarity, async event loops, token economics — is what led to the ~99% token reduction at Idyllic.

Curiosity Learning Engineering Mindset

Things I Wish I Knew When I Started Programming — Rugved Chandekar

Personal

March 14, 2026 6 min read

Things I Wish I Knew When I Started Programming

Don't follow tutorials blindly. Build real things. Understand fundamentals before frameworks. Embrace errors as teachers. If I could send a message back to my first-year self, this would be it.

Beginners Career Lessons

Why Consistency Matters More Than Talent in Programming — Rugved Chandekar

Personal

Feb 28, 2026 5 min read

Why Consistency Matters More Than Talent in Programming

I was never the smartest person in the room. But I showed up every day. Consistency got me the DSA lead role, the internship, the production AI systems. Talent gets you started — consistency gets you there.

Consistency Growth Career

How I Learn Any Tech Stack Fast — Rugved Chandekar

Personal

Feb 14, 2026 6 min read

How I Learn Any Tech Stack Fast

Start with a real problem, not a tutorial. Build something broken, then fix it. Find the 20% that does 80% of the work. Applied this to AWS Bedrock, OpenSearch, n8n, Docker, and Kubernetes — all within months.

Learning Skills Productivity

Why Building Projects Beats Watching Tutorials — Rugved Chandekar

Personal

March 20, 2026 5 min read

Why Building Projects Beats Watching Tutorials

The tutorial trap is real. 10 hours of watching vs 1 hour of building something broken and fixing it. Every project I built — JARVIS, the booking system, the Chrome extension — taught me 10× more than any course.

Project-Based Learning Career Advice

$My First Real AI Project — What It Taught Me — Rugved Chandekar$ Personal

March 22, 2026 6 min read

My First Real AI Project — What It Taught Me

JARVIS — a voice assistant I built with zero guidance, bad code, and complete obsession. It taught me API integration, state handling, prompt engineering basics, and one crucial lesson: imperfect projects build more confidence than perfect tutorials.

AI First Project Lessons

How Solving Real Problems Changed the Way I Code — Rugved Chandekar

Personal

March 16, 2026 5 min read

How Solving Real Problems Changed the Way I Code

The shift from academic coding (solve this LeetCode problem) to real-world problem solving (this mutt needs a booking system). Real users, real deadlines, real maintenance — they force better architecture, better code, better engineering.

Real-World Engineering Growth

Building a RIS Application for Medical Imaging Systems — Rugved Chandekar

Technical

Dec 20, 2025 8 min read

Building a RIS Application for Medical Imaging Systems

Building a Radiology Information System — DICOM handling, patient data management, imaging report generation. The responsibility of writing software in healthcare, and how real constraints shaped every architecture decision.

Flask Medical Imaging DICOM

Building My First JARVIS AI Assistant — Rugved Chandekar

Technical

Dec 5, 2025 7 min read

Building My First JARVIS AI Assistant

Before any internship, before any course — I built a voice-activated AI assistant from scratch. Speech recognition, text-to-speech, Wikipedia API, task automation. The project that got me hired.

Python Voice AI Automation

Building integration-smoke-test: A Python Tool for API Diagnostics — Rugved Chandekar

Technical

Jan 20, 2026 5 min read

Building integration-smoke-test: A Python Tool for API Diagnostics

How I built and published a lightweight Python library to PyPI — testing API connectivity, diagnosing DNS issues, timeout failures, and endpoint errors with a single import. Open source, production-ready.

Python Open Source PyPI

From Code to Containers: What Docker and Kubernetes Taught Me — Rugved Chandekar

Technical

Feb 20, 2026 6 min read

From Code to Containers: What Docker and Kubernetes Taught Me

From "it works on my machine" chaos to containerized, orchestrated deployments on AWS ECS. Why containerization is now part of my day-one architecture decisions on every production project.

Docker Kubernetes AWS ECS

Building a Real-Time Collaborative Code Editor with WebSockets — Rugved Chandekar

Technical

Nov 10, 2025 9 min read

Building a Real-Time Collaborative Code Editor with WebSockets

Multiple users, one editor, zero conflicts. The full architecture of my WebSocket-powered collaborative coding platform — room management, operational transforms, conflict resolution, and Socket.IO under the hood.

WebSockets Socket.IO Real-Time

Building a Booking System That Cut Manual Work by 90% — Rugved Chandekar

Technical Featured

March 13, 2026 8 min read

Building a Booking System That Cut Manual Work by 90%

Flask, MySQL, automated WhatsApp confirmations. This is the full technical breakdown of the Raghavendra Swami Mutt booking system — from 30+ hours/week of manual work to near-zero.

Flask MySQL Automation

Building a Reliable AI Email Triage Pipeline with n8n — Rugved Chandekar

Technical

Feb 10, 2026 6 min read

Building a Reliable AI Email Triage Pipeline with n8n

How I built a hybrid AI + rules email triage system using n8n — LLM classification, urgency scoring, validation, and structured output. Why probabilistic AI needs deterministic guardrails to be production-safe.

n8n Automation AI Engineering

$I Built an AI Chrome Extension That Fills Job Forms Automatically — Rugved Chandekar$ Technical

Feb 5, 2026 6 min read

I Built an AI Chrome Extension That Fills Job Forms Automatically

Tired of refilling the same job application forms? I built an AI Chrome Extension that reads the page, understands the context, and fills fields automatically — tailored to each job description.

Chrome Extension LLMs Automation

$When Junior College Vector Math Saved My Real-World AI Project — Rugved Chandekar$ Technical

Feb 22, 2026 6 min read

When Junior College Vector Math Saved My Real-World AI Project

The dot product and cosine similarity from 11th-grade math became essential for production RAG on AWS OpenSearch. Semantic search IS linear algebra — and the moment I realized that led to the 99% token reduction achievement.

Linear Algebra Embeddings RAG

One Prompt Mistake Cost Me Hours: The Empty List Debugging Story — Rugved Chandekar

Technical

March 12, 2026 4 min read

One Prompt Mistake Cost Me Hours: The Empty List Debugging Story

Sending an empty list in my prompt caused the LLM to return empty lists every time. Hours of debugging, thinking it was a model issue. Lesson: LLMs follow examples literally. Always validate inputs before LLM calls.

Prompt Engineering LLMs Debugging

XGBoost + SHAP: Building an Explainable House Price Predictor — Rugved Chandekar

Technical

March 8, 2026 8 min read

XGBoost + SHAP: Building an Explainable House Price Predictor

Not a black-box model — users see exactly which features drive the predicted price. Full breakdown of feature engineering, XGBoost tuning, SHAP value visualization, and serving predictions via Flask REST API.

XGBoost SHAP Explainable ML

Resu Genie: Deploying an AI Resume Parser on AWS — Rugved Chandekar

Technical

Jan 15, 2026 10 min read

Resu Genie: Deploying an AI Resume Parser on AWS

From hackathon winner to production system — AWS ECS Fargate, OpenSearch vector search, Amazon Bedrock LLMs. The complete journey of taking a prototype and deploying it as a real-world AI service that handles semantic resume matching.

AWS RAG Production AI

JARVIS 2.0 — Building an Autonomous Multi-Agent AI System — Rugved Chandekar

Technical Featured

March 24, 2026 10 min read

JARVIS 2.0 — Building an Autonomous Multi-Agent AI System

Evolving from a simple voice assistant to a full autonomous multi-agent system. Supervisor agent architecture, specialized sub-agents, LLM tool calling — the exact pattern I now use in production at Idyllic Services.

Multi-Agent AI LLM Orchestration Python

How I Replaced Fragile If-Else Chains with a Supervisor Agent — Rugved Chandekar

Technical Featured

April 1, 2026 8 min read

How I Replaced Fragile If-Else Chains with a Supervisor Agent

Brittle if-else routing in agentic AI breaks every time you add a new intent. I replaced the whole thing with a supervisor agent pattern — achieving ~99% token reduction and ~10× throughput at Idyllic Services.

Agentic AI System Design LLMs

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