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krunal mavani

@krunalmavani

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I build scalable Node.js backends for real-time consultation, calling, payment, and wallet platforms.

India

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What I'm looking for

I'm looking to build and scale real-time, high-concurrency backend systems, distributed microservices, payment workflows, and modern web applications.

At Coddynet Infotech, I architect and scale Looisa.com's backend for live consultations, combining high-throughput session routing, per-minute billing, wallet deductions, and audio/video calling.

I've built real-time communication and transactional systems for MaitriTalk, GAINSAPP, and CoffeeMantra using Node.js, Nest.js, Express.js, Redis, PostgreSQL, MongoDB, WebSockets, ZegoSDK, and payment gateways. My work includes presence tracking, encrypted chat, live event orchestration, payout algorithms, REST APIs, and cloud media pipelines.

I deploy containerized services across AWS, GCP, DigitalOcean, and Hostinger VPS environments, using Nginx and PM2. I focus on reducing database load, optimizing queries, and maintaining reliable transactional data integrity.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Coddynet Infotech

Jul 2025 - Present (1 year 3 months)

Architect and scale backend systems for live consultation engines using Node.js, Nest.js, PostgreSQL, and Redis. Implement real-time audio/video calling with ZegoSDK and VideoSDK, integrate payment gateways, and manage deployments on AWS, GCP, and DigitalOcean.

NodeJS NestJS PostgreSQL Redis Zego VideoSDK PayPal Cashfree Razorpay EC2 S3 GCP DigitalOcean Nginx PM2

Node.js Developer

Regumsoft Technologies

Jan 2024 - Jun 2025 (1 year 5 months)

Engineered scalable communication pipelines for professional listener platform MaitriTalk and developed transactional workflows for GAINSAPP. Containerized microservices with Docker and integrated Redis for caching and presence tracking.

NodeJS ExpressJS MongoDB Zego Socket.IO Redis Docker DigitalOcean Hostinger

Junior Backend Developer

PSK Technologies

Jul 2023 - Dec 2023 (5 months)

Developed scalable REST APIs for mobile applications and web management platforms. Built a multi-time-zone converter service and configured media uploads to cloud storage.

NodeJS REST APIs Cloud Storage Hostinger VPS

Backend Developer (Contract / Deputation)

Dezen Technologies

Collaborated with client engineering teams to build, optimize, and document RESTful APIs. Assisted in database schema refactoring and performance tuning for high-traffic endpoints.

REST APIs Database Optimization Code Review Debugging Third Party Integrations