• Designed and implemented a microservice that redirected users from the app to web onboarding, increasing completion rates by 30% by optimizing the user journey and API authentication. • Developed a merchant onboarding system that onboarded 30 agents and 27 merchants, improving user acquisition by 20% through automated QR code registration and secure document uploads via S3. • Built a Kafka consumer service to process transactional messages, handling 10K+ calls daily, ensuring real-time updates and data consistency across microservices. • Initiated a Redis-backed caching solution for frequently accessed data, reducing API latency from 200ms to 25ms, enhancing system responsiveness for 30K+ users. • Created daily cron jobs to track and update the status of expired offers, boosting campaign efficiency by 15%, using Redis locks to prevent race conditions. • Integrated JWT-based authentication across services, enhancing security and access control by restricting API access based on user roles, ensuring compliance with industry standards. • Engineered a rule engine service that allows merchants to define custom rules, reducing manual intervention by 40% through automated validation and real-time enforcement. • Led the modernization of legacy codebases, improving code efficiency by 35%, by adopting best practices like asynchronous processing and dependency optimization. • Architected an AI-powered resume-building service supporting 3K DAU, leveraging the RAG model to generate user-specific recommendations and improve engagement. • Engineered a message queue consuming service via Kafka, automating data ingestion from 15+ sources and reducing manual data entry errors by 99%, leading to better data quality. • Optimized the Astro Labs service to support 2K concurrent users, using Redis for caching horoscope data, reducing API response time and improving engagement-driven revenue.

• Outlined endpoints to fetch data from different services for 100+ users using NodeJs and MongoDB. • Constructed APIs to store appointment details of 10K+ users with financial experts using NodeJs and ExpressJs. • Optimized API to automate a document management service using Spring Boot and MySQL, enhancing efficiency. • Migrated documents stored in the VM to AWS S3 bucket, reducing physical storage usage by 60%.

• Developed middlewares for global error handling, authentication, and schema validation. • Integrated Stripe to enable multiple payment options, supporting 1000+ users. • Created a cloud function using Google Firebase to notify users of newly received chats in real time. • Refactored an API to efficiently track transaction history for 1000+ users using MongoDB.

• Developed a CRUD app using DynamoDB and AWS-SDK • Added Create, Read, Update and Delete features to the single page web- application

• Fixed bugs in CRUD Application using Node.js, Express, and Mongoose. • Improved the user interface using HTML, CSS, and JavaScript