Akshay Sadhu

Master's

Computer Science

WebEngage

Software Engineer

- RCS Channel - Implemented an event-driven asynchronous message delivery service for hypermedia messages at scale - Developed two microservices, a sender service for AWS SQS message consumption and a tracker service with REST API endpoints for delivery receipts - Utilized Docker, Kubernetes, GitLab, and Argo CD for seamless deployment and CI/CD pipeline management - Achieved 30k/min throughput with optimized resource utilization, ensuring robust performance - Campaign Stats Druid - Developed an event-driven system to asynchronously process CRM data from a Kafka topic - Persist data into Redis, Apache Druid for low latency access for CRM dashboard - Achieved an ingestion rate of 50,000 events per minute with minimal resource usage - Summarized Reports - Developed a multi-threaded report generation service for on-demand and scheduled CSV reports - Utilized Apache Druid for data retrieval with efficient and low-latency queries - Implemented batching and streaming for better efficiency of the system - Automated report generation in various formats as per the user specifications - Campaign Stats Query Server - Built REST API-based query generation service interfacing with Redis, Druid, Google BigQuery, and MongoDB - Used mustache templating engine to generate queries based on user input with pre existing template queries - Optimized Druid and BigQuery queries to reduce cost, minimize data volume, and ensure low-latency data