Sagar Gupta

About Me

Building products that scale

Results-driven engineer with a track record of leading teams and delivering production-grade systems.

Senior Software Developer with 5+ years of hands-on experience specializing in high-performance web and mobile applications. I've led cross-functional teams, architected enterprise solutions, and shipped 15+ production apps across healthcare, fintech, and mobility — consistently optimizing performance by 40–50% and cutting deployment time by 60%.

👥

Team Leadership

Lead 6+ developers — code reviews, sprint planning, mentorship

⚡

Performance Engineering

40–50% speed gains via code-splitting, caching & AWS tuning

🚀

Full-Stack Delivery

End-to-end ownership from architecture to CI/CD & cloud ops

AI-Native Workflows

AI-Assisted Development

I ship production features using modern AI developer workflows — not just experimenting, but integrating tools into real delivery pipelines.

Cursor Claude Code MCP Connectors Emergent

workflow.config

agent: "cursor"
protocol: "MCP"
stack: ["React", "Next.js", "Node"]
ship: production ✓

Expertise

Technical Skills

Full-stack capabilities across frontend, backend, cloud, and modern AI tooling.

Frontend

Pixel-perfect, performant UIs at scale

React.js React Native Next.js TypeScript Tailwind CSS

Backend & APIs

Node.js Express GraphQL Microservices RabbitMQ Socket.io

Databases

MongoDB PostgreSQL MySQL Firebase

State Management

Redux Toolkit Zustand React Query Context API

Cloud & DevOps

AWS GitHub Actions Docker Vercel CI/CD

AI Tools

Cursor Claude Code MCP Emergent

Career

Professional Experience

Senior Software Developer & Team Lead

Freelancer · Remote

Mar 2020 — Present · 6 yrs

6+ devs led 15+ apps shipped 60% faster deploys 30% AWS savings

Lead a team of 6+ developers — code reviews, sprint planning, and technical mentorship
Architected 15+ scalable React.js, React Native, and Next.js apps serving 100K+ users
Optimized performance by 40–50% through code-splitting, caching, and lazy loading
Implemented CI/CD with GitHub Actions, reducing deployment time by 60%
Managed AWS infrastructure (EC2, S3, Lambda, RDS) and cut costs by 30%
Achieved 100% on-time delivery across 12+ client projects

🎓

Diploma in Computer Science

RGPV University · Shri Vaishnav Polytechnic College, Indore

2019 — 2022

Portfolio

Featured Projects

Enterprise-grade products across healthcare, mobility, social automation, and e-commerce.

Healthcare Team Lead

Medidek

Healthcare Booking Platform

50K+Patients

2K+Providers

99.9%Uptime

Web & mobile apps with real-time appointment scheduling
Razorpay & Stripe payment integration
AWS infrastructure with 99.9% uptime

React.js Next.js React Native MongoDB AWS

SaaS Lead Architect

Multi-Tenant CMS

Plugin-Based CMS Platform

100+Orgs

500K+MAU

800msLoad Time

Plugin-based drag-and-drop page builder
GraphQL API for efficient data fetching
Reduced page load from 3s to 800ms

Next.js TypeScript GraphQL PostgreSQL

Mobility Senior Developer

ZaoCabs

Taxi Booking Application

10K+Rides/mo

4.5Rating

Real-time GPS tracking with Socket.io
Google Maps API integration
Multiple payment gateway support

React.js React Native Node.js Google Maps

Social Tech Lead Architect

Fliqrai

Instagram Automation Platform

50K+Daily Actions

Visual workflow builder & real-time analytics
Instagram API OAuth integration
Automated engagement at scale

Next.js TypeScript Instagram API MongoDB

E-Commerce Senior Developer

Multi-Vendor Store

E-Commerce Platform

200+Vendors

$500K+Monthly GMV

20K+ active users with advanced filtering
Stripe payment integration
Multi-vendor inventory management

Next.js Stripe MongoDB AWS

Real-Time Lead Developer

Collab Tool

Real-Time Collaboration Workspace

1K+Concurrent

<100msLatency

WebSocket-based document synchronization
Live presence & typing indicators
Redis-backed pub/sub architecture

React.js Socket.io Redis MongoDB

Want the full picture?

Download my complete resume with detailed project breakdowns and tech stack.

Connect

Let's work together

Open to senior developer and team lead opportunities.