Integrated Aadhar-Based KYC Verification:Implemented third-party KYC verification system, Signzy, for Aadhar-based KYC, improving identity verification accuracy and reducing processing time by 30%.• Asynchronous Communication System :Innovated a Kafka-based Communication Micro-service, boosting message delivery success by 60% across email,push notifications, and WhatsApp.• Automated Subscription for B2B Clients:Spearheaded the automation of subscription services for B2B clients,supporting over 5 million users, resulting in a 20% reduction in manual intervention and a 25% increase in user engagement.• Backend Development for Investment Platform:Designed and developed core backend services for an investment platform, including subscription models, stock rebalancing algorithms, and order placement, optimizing system performance and improving order processing speed by 40%.• Broker Integration for Real-Time Order Placement: Integrated leading brokers such as Paytm and Upstox into the platform for real-time order placement, reducing order execution time by 35% and improving transaction reliability for high-frequency trading.• Real-Time Stock Price Streaming Engine: Designed and integrated a high-performance streaming feed engine,delivering real-time stock price updates to the UI, handling over 100,000+ concurrent requests with sub-100ms latency.

Engineered Elasticsearch for Global Search: Optimized search performance by 60% across a dataset of huge records, enabling efficient and scalable global search functionality.• Designed and Developed Key Features:Created and integrated RESTful APIs for critical components such as the Analytics Dashboard, KYC, and Address Book, Payment Gateway enhancing overall system functionality and user experience.• Integrated Advanced Data Manipulation:Implemented jspreadsheet, offering spreadsheet-like flexibility for data manipulation directly from the UI, improving user interactivity and data processing efficiency.• Developed Robust Payment Gateway:Built and integrated a payment gateway from scratch, capable of handling over 1M+ transactions daily with high reliability and security.• Enhanced System Scalability:Implemented service discovery and an API gateway, significantly improving loadbalancing, system scalability, and fault tolerance.• Distributed File System : Developed a distributed file system that enables seamless file storage across user selected accounts, including Google Drive, private FTP storage, and Outlook.