I'm Gourav
Sahu
I ship production SaaS products - from WhatsApp automation platforms to high-volume email systems. React + Node + Redis + MongoDB. Built for scale, not just demos.
Who I Am & What I Do
Full Stack Developerbased in Bhopal - I don't just write features, I build entire products from scratch and ship them to production.
Right now at Pabbly, I own two major products end-to-end: WhatsApp ChatFlow - a visual workflow builder doing 5,000+ executions daily, and Email Marketing - a bulk sending system pushing 1M+ emails/day through Redis queues and PMTA servers.
My day-to-day involves React, Node.js, MongoDB, Redis, Socket.io - designing queue architectures, writing API endpoints, building drag-and-drop UIs, and debugging production issues at scale. Before Pabbly, I was at iifetech building dashboards and REST APIs.
What I Bring to the Table
Frontend
React + Next.js + TypeScript. Workflow builders, dashboards, responsive UIs.
Backend
Node.js + Express + Nest.js. REST APIs, queue workers, webhooks.
Database
MongoDB + Redis + MySQL. Indexing, caching, aggregation pipelines.
System Design
Redis queues, worker processes, Socket.io, event-driven patterns.
My Tech Stack
Technologies I use to bring ideas to life
Frontend
Backend
Tools & Platforms
Core Concepts
Where I've Worked
Companies where I've shipped production code
Full Stack Developer
Pabbly
- Built a WhatsApp automation platform using React Flow with 20+ automation node types, handling 1L+ daily workflow executions
- Designed event-driven architecture using Redis queues and worker processes, improving scalability by 40%
- Integrated WhatsApp APIs with real-time tracking via Socket.io, reducing manual monitoring by 60%
- Developed scalable email automation for 50K+ users with bulk delivery (1M+ emails/day) using Redis, SMTP & PMTA
- Achieved 25-30% API performance improvement through caching and query optimization
Full Stack Developer
iifetech Pvt Ltd
- Built scalable dashboards and reusable UI components using React.js, Next.js, and Tailwind CSS, improving dev speed by 30%
- Developed and optimized REST APIs handling thousands of daily requests, reducing load time by 20-25%
- Implemented JWT-based authentication and role-based access control for enhanced security
B.Tech in Computer Science & Engineering
Oriental College of Technology, Bhopal
Certifications
Featured Projects
Stuff I've actually built and shipped to production
Pabbly Email Marketing
Bulk Email & Automation System
Built this from zero - campaign builder, automation workflows, contact segmentation, analytics dashboard. The backend pushes 1M+ emails/day through Redis queues and PMTA/SMTP servers. Serving 50K+ active users.
Pabbly ChatFlow
WhatsApp Automation Platform
Users drag and drop nodes to create WhatsApp automation flows - conditions, delays, webhooks, API calls. I built both the React Flow frontend and the Redis-powered backend engine. Running 1L+ workflow executions daily with 20+ node types.
SourceAI
AI-Powered Support System
Customer support system where AI handles 70-80% of queries automatically. When it can't answer, it hands off to a human agent with full context. Also converts support emails into tickets via IMAP integration.
Ecommerce Store
Full Stack Shopping Platform
Full-stack ecommerce app - product listings, cart, checkout, JWT auth, admin panel. Built with the MERN stack. Clean UI with Tailwind, state managed with Redux Toolkit.
Flora
Animated Flower Shop Website
Animated flower shop website with scroll-triggered animations using GSAP and ScrollTrigger. Heavy focus on motion design and smooth interactions.
Case Studies
Click to explore how I build production-grade systems
Let's Work Together
Got a project idea or opportunity? Drop me a message!
Why work with me?
- 2+ years building production-grade SaaS products
- Systems handling 10K+ users & 1M+ daily operations
- Full stack: pixel-perfect UI to scalable backend
- Strong in system design & real-time architectures