Fullstack Engineer with 4+ years in Node.js, React.js & Cloud platforms.
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Results-driven Full Stack Developer with 4+ years of experience building scalable SaaS platforms, REST APIs, and messaging systems using Node.js, React.js, Express.js, and TypeScript. Proven track record integrating payment gateways (Stripe, PayPal) and communication APIs (Twilio SMS/WhatsApp). Experienced with cloud infrastructure (AWS EC2/S3), Docker, Redis/BullMQ queue systems, and CI/CD pipelines. Adept at delivering high-performance full stack applications in Agile environments.
Chetu India Pvt. Ltd.
Full Stack Developer
April 1, 2022 – Present
Noida, Uttar Pradesh, India
WhatsApp Campaign System
January 1, 2026 – June 30, 2026
Architected a WhatsApp SaaS messaging platform processing 10,000+ messages per day with high reliability. Designed API-key based authentication enabling external clients to integrate and send messages programmatically. Built Redis + BullMQ queue architecture for background messaging tasks, reducing processing latency by 45%. Implemented message scheduling, batching, retry mechanisms, and throttling to ensure guaranteed delivery. Developed React.js dashboards for real-time campaign management, analytics, and delivery monitoring.
Twilio Campaign Application - Bulk SMS & Email Platform
May 1, 2024 – December 1, 2025
Built a scalable bulk messaging system supporting high-volume SMS and email campaigns for enterprise clients. Implemented template management, campaign scheduling, and real-time delivery tracking features. Integrated Stripe subscription payments for usage-based billing with webhook event handling. Applied rate limiting and messaging optimizations, improving overall campaign reliability by 30%.
Podcast Hosting Platform
April 1, 2022 – May 1, 2024
Built a scalable bulk messaging system supporting high-volume SMS and email campaigns for enterprise clients. Implemented template management, campaign scheduling, and real-time delivery tracking features. Integrated Stripe subscription payments for usage-based billing with webhook event handling. Applied rate limiting and messaging optimizations, improving overall campaign reliability by 30%.