Shobhit Singh Raghuwanshi

Back End Developer @Ventura

Mumbai, IN

Mutual Funds Platform (Python/FastAPI)– Architected and deployed a transaction and non transaction processing system from scratch using FastAPI,SQLAlchemy, and PostgreSQL, handling daily transactions– Optimized API response times by 75%(from 200ms to 50ms) using Redis caching for portfolio data, andnuster caching for non transaction data– Migrated from serverless (Lambda, API Gateway) to EC2 (m5.large), reducing costs by 30% whileimproving throughput– Automated 30+ batch jobs for NAV updates, master data update, portfolio update and client reportingusing cron and Pandas, Numpy• IPO Processing System (Node.js/Express)– Replaced Lambda-based architecture with Express.js on EC2 (r5.2xlarge), improving throughput by 70%by eliminating cold starts• Authentication & Security Service (Python/Nginx)– Centralized auth service at Nginx layer reduced API middleware overhead by 25%– Enforced rate limiting requests/minute/IP) and DDoS protection using Nuster caching– Secured 50+ microservices with JWT-based session management via FastAPI• Fixed Deposits Platform (Node.js/Express)– Built FD system processing monthly transactions with third-party integrations– Audit logging framework tracked 100% of API calls to external dependencies– Deployed on EC2 (c5.xlarge) with load balancing, achieving 99.9% uptime• Vendor Partner Portal (VPP)(Python/FastAPI)– Reduced onboarding time by 40% via multi-step KYC (AWS Lambda, 1536MB memory)– State management tracked onboarding sessions with SQS for audit trails– Encrypted 1M+ client records in S3 and RDS using AWS KMS– Implemented SSO (Cognito) with OTP-based auth, supporting 500+ concurrent users