Hi, I’m Sachin

Principal Engineer & Software Architect — I craft scalable, fast, and clean solutions using Node.js, React, and AI.

About Me

I’m Sachin Kasana— a curious builder, systems thinker, and software architect with over a decade of experience crafting scalable and performance-first web applications. I’m passionate about clean architecture, building products that people love, and helping developers grow. Whether I’m coding backend logic, designing front-end flows, or optimizing performance, I bring care, clarity, and curiosity to everything I work on.

Architecture & Scaling

Designing clean, scalable systems using modern frameworks, microservices, and cloud-native tooling.

AI & Automation

Building smarter workflows using AI/ML to reduce manual effort and elevate developer productivity.

Mentoring & Growth

Helping devs grow into thoughtful engineers through mentorship, reviews, and system thinking.

JavaScript

TypeScript

Node.js

React

Next.js

MongoDB

Tailwind CSS

AWS

“Great systems are simple on the surface — but engineered with care underneath.”

Projects

Selected product builds and platform work. For learning tools, see the Developer Tools section below.

Enterprise E-commerce Platform

Lead Engineer

Architected and led development of a large-scale e-commerce ecosystem for a global wellness brand. The platform supported thousands of daily orders, dynamic product catalogs, vendor-level pricing, and internationalization.

Node.jsMongoDBExpressReactAWS

Telecom Recharge & Self-Care Portal

Senior Software Engineer

Spearheaded the rebuild of a national telecom company’s recharge system and customer self-care portal. Handled complex workflows like prepaid/postpaid management, multi-factor auth, and wallet-based payments.

AngularJavaSpring BootRedisKafka

AI-Based Resume Optimization Tool

Side Project

Built an AI assistant that analyzes resumes and suggests real-time improvements using OpenAI. Includes section-wise scoring, ATS keyword suggestions, and dynamic formatting options.

FastAPIPythonOpenAITailwind

Digital Operations Dashboard

Principal Engineer

Designed and developed a data-driven internal dashboard for leadership to monitor KPIs, operational metrics, and team performance across multiple product lines.

Next.jsTypeScriptChart.jsDynamoDBLambda