Oct 2024 – Present · 1 yr 8 mos · Odisha, India · On-site

• Engage
• Designed and developed a scalable backend using Node.js, Express, and Cronjob scheduler to process 100K+ daily messages
• (SMS, Email, WhatsApp) with scheduled campaign delivery
• Implemented campaign scheduling and message queuing for reliable, on-time delivery while maintaining high throughput and
• fault tolerance
• Optimized database access with MongoDB indexing, improving delivery latency by 40% and enabling seamless horizontal
• scaling
• Achieved low latency and scalability through multithreading using Node.js Worker Threads, enabling efficient parallel processing across notification jobs
• Music Collision
• Built a scalable backend architecture with Express, AWS S3, AWS MediaConvert, and AWS Lambda for music upload,
• storage, and secure streaming, supporting peak traffic of 50K+ concurrent users
• Integrated Stripe payments and designed REST APIs to handle subscriptions and content access with 99.99% uptime
• Enhanced performance and throughput by leveraging Node.js Worker Threads for concurrent task execution, improving
• scalability during peak user activity