Vishnu Sai

Software Engineer

Openplay Technologies•  July 2022 - August 2024•  hyderabad

Orchestrated the architecture and development of microservices for payouts, promotions, gifting services, and user segmentation, contributing to enhanced operational efficiency and system reliability. Engineered a Gifting service, boosting user engagement by 2% and retention by 3%, with a design tailored for seamless integration with other services. Optimized the promotion service with batch processing, reducing API execution time by 90% (from 1s to 100ms). Managed the game server for rummy, ensuring the creation of tables and tournaments. Conducted payout penetration tests, uncovering vulnerabilities and enhancing system integrity, ensuring secure transactions. Accelerated invoice creation speed 20-fold through threading, significantly improving data storage efficiency. Integrated Juspay APIs for payouts, leveraging Redis to prevent duplicate submissions, enhancing payment reliability. Developed a data ingestion pipeline for storing user events leveraging aws lambda, amazon kinesis, dynamo db. Technologies used: Python, MySQL, Kafka, FastAPI, Clickhouse, AWS, Docker, Kubernetes, Redis, Apache Spark, Data Ingestion.