SAGAR
SAGAR
KUMAR
KUMAR

Designing & engineering premium digital experiences — from pixel to protocol.

3+

Years

15+

Projects

1K+

Users

Next.jsReactTypeScriptNode.jsPythonAWSMongoDBPostgreSQLReact NativeFramer MotionNext.jsReactTypeScriptNode.jsPythonAWSMongoDBPostgreSQLReact NativeFramer Motion
Scroll

The Vision

I believe in engineering experiences that look spectacular and function flawlessly at scale.

My background at IIT Bombay ingrained a deep appreciation for solid architecture, clean codebases, and relentless optimization. Whether bridging complex Python backends or crafting silky React/Next.js interfaces — I build products that stand out.

Education

IIT Bombay

B.Tech · 2025

Specialty

Full-Stack

Next.js · Node · Python

Experience

3+ Years

Production apps

Projects

15+ Shipped

1M+ users reached

CREATE AND INNOVATE
sagar@portfolio ~ zsh
React
Next.js
TypeScript
Tailwind
Node.js
Python
Django
MongoDB
PostgreSQL
React Native
Swift
React
Next.js
TypeScript
Tailwind
Node.js
Python
Django
MongoDB
PostgreSQL
React Native
Swift
Kotlin
Docker
AWS
Git
Redis
GraphQL
Firebase
Express
Angular
CI/CD
Netlify
Kotlin
Docker
AWS
Git
Redis
GraphQL
Firebase
Express
Angular
CI/CD
Netlify

96

Total Repos

21 public · 75 private

5,126

Contributions

past year

Languages

  • Python57%
  • JavaScript29%
  • TypeScript14%

Contribution Activity

5,126 contributions this year
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Less
More

Portfolio

Selected Works

Hover over the cards to interact.

01
Developer Tool

SSH MCP

Built an internal MCP (Model Context Protocol) server at BrowserStack to AI-power the debugging of 30,000+ mobile devices. Engineers previously had to SSH into servers, manually sift through logs, and apply fixes one at a time. The MCP server exposes 15+ specialised tools covering log analysis, device health checks, and automated remediation of known failure patterns. Hard guardrails prevent destructive actions — any file deletion is blocked and escalated to the customer team first. Teams can now attach the server to any AI editor and let the model diagnose and fix redundant issues autonomously, while the AI also excels at analysing novel problems that would normally require hours of manual investigation.

TypeScriptNode.jsSSH2MCP Protocol+1 more
02
Internal Platform

Atlas

Designed and built an internal knowledge-sharing platform for the BrowserStack Device Infrastructure team. Every engineer had their own scattered notes of debugging commands, SQL snippets, and BigQuery queries — tribal knowledge that new joiners had to extract one conversation at a time. CommandPost provides a structured, searchable library where the team publishes and discovers common debugging patterns, device-availability commands, and analytics queries. Onboarding time for new engineers dropped significantly as they can self-serve instead of interrupting teammates, and the platform has become the single source of truth for operational runbooks.

Next.jsTypeScriptPostgreSQLBigQuery+1 more
03
Full Stack

Fusion Cab

Architected and delivered a complete cab-booking ecosystem for Fusion Cab, an offline cab operator scaling to digital. The platform comprises four product surfaces: a customer-facing booking website, an admin portal for fleet and booking management, a vendor portal for partner cab operators, and a cross-platform driver app. Handled real-time booking flows, live driver tracking, earnings dashboards, and role-based access across all surfaces — enabling Fusion Cab to transition their large-scale offline operations into a fully managed digital platform.

ReactReact NativeNode.jsMongoDB+2 more
04
AI / FinTech

Insightica

Built the web platform for Insightica, an Indian AI-powered market analytics startup serving financial services traders. The platform fuses multiple technical indicators — RSI, MACD, Bollinger Bands, moving averages — with historical price data to surface actionable trends and support data-driven trading decisions. Developed the full product: a signal dashboard with real-time chart rendering, a screener for filtering stocks by indicator conditions, and an alert system for custom trigger thresholds. Collaborated directly with the founding team (ex-NITI Aayog and IISER Bhopal) to translate financial domain logic into a performant, data-rich application.

Next.jsTypeScriptPythonTailwindCSS+2 more
03
Full Stack

Campus Executive Portal

Built the complete Campus Executive initiative platform for E-Cell, IIT Bombay — a two-part system including a public-facing information website and a fully-featured intern management dashboard. The dashboard handles task assignment to campus representatives across colleges, submission tracking, performance evaluation, a competitive leaderboard engine, and an incentive management system — replacing entirely manual processes with a scalable, data-driven pipeline.

AngularBoostrapDjangoPostgreSQL
04
Full Stack

E-Cell IIT Bombay — Official Website

Led the complete revamp of the official website for E-Cell, IIT Bombay — India's largest entrepreneurship cell — after its previous version ran for 5 years untouched. The new platform introduced a dynamic blog section, live event updates, a centralised content management system, and significantly improved navigation and UX. This redesign renewed the digital identity of one of India's most reputed student entrepreneurship bodies.

AngularDjangoPostgreSQLBoostrap+1 more
01
Full Stack

Totally Indian

Built the full-stack platform for TotallyIndian — an international e-commerce marketplace connecting Indian artisans, handloom weavers, Ayurvedic wellness brands, and specialty food sellers with customers in the USA, UK, Canada, Australia, Germany, and beyond. The platform spans a customer storefront, a multi-vendor seller dashboard (product listings, payment tracking, invoice generation), and a full admin panel covering order management, discount code engine, team permissions, and logistics. Integrated Razorpay as the primary payment gateway and DHL + Aramex as global delivery partners. The site is fully SEO-optimised, capable of handling thousands of cross-border product SKUs across six major categories.

Next.jsNode.jsPostgreSQLAWS+4 more
05
Full Stack

E-Summit'24

Built the flagship website for E-Summit 2024, Asia's largest student-run entrepreneurship summit. The site featured cinematic scroll animations, a fully automated social media post generator powered by OpenCV and Pillow that produced event graphics on-the-fly, and served as the central information hub for speakers, sponsors, and thousands of registered participants. A highly performance-optimised, visually rich experience that drove massive event registrations.

AngularDjangoOpenCVPillow+1 more
02
Full Stack

E-Summit'23 App

Official mobile companion app for E-Summit 2023, Asia's largest entrepreneurship summit hosted by E-Cell IIT Bombay. Designed to serve hundreds of attendees in real-time, the app featured event schedules, speaker profiles, interactive session navigation, and in-app networking features. Delivered a seamless event experience for thousands of participants across multiple concurrent tracks.

React NativeDjangoPostgreSQLREST API
06
Full Stack

Email Campaign & Mailing Portal

An internal bulk-email operations platform built to manage large-scale email outreach campaigns. Features include campaign creation, mailing list management, real-time delivery and open-rate tracking dashboards, and asynchronous background queuing for high-volume email dispatch. Celery + Redis power the non-blocking job queue, ensuring emails are dispatched at scale without impacting the primary application. Built end-to-end to replace manual newsletter tooling.

AngularDjangoCeleryRedis+1 more
07
Mobile App

E-Summit'24 App

The official mobile app for E-Summit 2024 — Asia's largest entrepreneurship summit. Delivered real-time navigation through the multi-day event, in-app attendee networking, speaker schedules, and interactive session engagement features. Designed for thousands of concurrent users across the event's sprawling campus venues.

React NativeDjangoPostgreSQLREST API
08
Mobile App

GoBlu EV

Built the official Flutter mobile app and customer-facing website for GoBlu EV — Australia's first 100% electric vehicle ride-hailing service, operating with a fleet of Tesla Model 3 and Model Y vehicles in Melbourne. The app features real-time ride booking, CO₂ emissions-saved tracking per journey, fixed transparent pricing (no surge pricing), and driver safety profiles. GoBlu disrupts the gig economy model by employing drivers on fixed wages with full superannuation and insurance — a product I'm proud to have contributed to, having surpassed 10,000+ downloads on the Play Store.

FlutterNode.jsMongoDB
09
Full Stack

Gowadia

Architected the full product suite for Gowadia — a next-generation B2B e-commerce platform for the construction and interior materials industry. The platform connects engineers, contractors, and clients in a transparent, incentive-driven marketplace. Engineers can directly manage client projects, track granular material costs in real-time, and share live cost breakdowns with clients — eliminating opaque procurement. Built the customer-facing website, a rich project management dashboard, and cross-platform mobile app from the ground up.

Next.jsNode.jsPostgreSQLReact Native
10
Full Stack

RhythmFlows

Designed and built the official website for RhythmFlows, an AI-powered digital transformation and enterprise automation company serving the BFSI sector. Additionally architected a powerful no-code website builder embedded within their admin dashboard — allowing administrators to compose custom pages, sections, and layouts visually, have them rendered live on client-facing URLs, and embed custom forms anywhere on the site without writing a single line of code. Powered by Strapi as the headless CMS for content flexibility.

Next.jsStapiTailwindCSS

Journey

Professional Experience

Jun 2025 — Present

Backend Engineer

Browserstack
May 2025 — Jun 2025

Freelancer

Insightica
Dec 2024 — Apr 2025

Full Stack Developer

Fusion Cab
Jul 2024 — Nov 2024

Full Stack Developer

Totally Indian
Mar 2024 — May 2024

Freelancer

WeBroker
Feb 2024 — Apr 2024

Freelancer

Zyper.ai
Nov 2023 — Jan 2024

Full Stack Developer

RhythmFlows Solutions Pvt. Ltd.
Apr 2023 — Mar 2024

Web Head

E-Cell, IIT Bombay
Oct 2023 — Nov 2023

App Developer

GoBlu EV
Jan 2023 — Mar 2023

Web Coordinator

Aavhan, IIT Bombay
Dec 2022 — Jan 2023

Freelancer

Swan Intima Products Pvt. Ltd.
Aug 2022 — Jan 2023

Web Coordinator

E-Cell, IIT Bombay
Jan 2022 — Sep 2022

Web Coordinator

Mood Indigo, IIT Bombay
May 2022 — Mar 2023

Design Convener

UGAC IIT Bombay

Get in Touch

LET'S
TALK.

Got a project in mind? Let's build something remarkable together.

GitHub

LazyCodeer

LinkedIn

sagar-kumar-iitb