Bengaluru, Karnataka, India
Senior Software Engineer with 13.5+ years of experience, currently a Senior SDE (SDE III) at Amazon. Expert in architecting high-scale backend orchestration for cyber-physical systems, distributed data platforms, and ML-integrated services. Proven track record of defining long-term technical roadmaps, achieving 99% system resiliency, and leading cross-functional team to deliver mission-critical SaaS products. Specialist in Kotlin/Java, Kafka, and Spark, with a focus on resolving high-ambiguity architectural bottlenecks at global scale.
RFID Backend Orchestration: Technical owner for Tier-1 services powering Just Walk Out (JWO) RFID stores; designed the ingestion and processing layer for massive RFID sensor streams to enable checkout-free retail. Offline Experimentation Framework: Architected an offline replay and ML simulation pipeline for RFID systems, reducing physical store dependency by 60% and allowing ML scientists to validate algorithmic changes without hardware deployments. System Resiliency (99%): Directed the re-architecture of fault-tolerant distributed systems, eliminating cascading failures and using spooling in the event-processing path to ensure "99%" availability. Standardized Accuracy Framework: Designed and owned the end-to-end store accuracy pipeline (Data Ingestion → Metric Computation → Reporting); improved receipt accuracy to 98%+ through heuristic and ML optimization. Operational Intelligence: Developed QuickSight dashboards and automated Ground Truth (GT) collection, providing real-time visibility into system health and accuracy trends for global leadership. Cost Strategy & Leadership: Spearheaded AWS cost-optimization audits, re-platforming data storage patterns to drive significant annual OpEx savings. Mentored SDE I/IIs and established high- bar engineering practices via RFCs and design reviews.
Environment : Cassandra, Spark, Scala, Solr, Java, Oracle, Hive, ELK Description : Project was to display different KPI’s for order and deal management system and ETL between transactional and analytics databases. Responsibilities: ✓ Developed Custom metadata ETL framework for data migration from oracle/Hive/MongoDB to Cassandra. ✓ Developed data validation framework for A/B testing of data. ✓ Installed and configured PrestoDB cluster for adhoc SQL query capabilities on top of Cassandra and MongoDB. ✓ Designed denormalized tables in Cassandra. Used Sqoop to migrate data from oracle to Cassandra. ✓ Installed and managed ELK cluster and developed grok patterns to process logs from multiple REST services forwarded to Logstash using filebeat. ✓ Enhanced and managed REST services written in GoLang.
1) Involved in Analysis, Design and Implementation phase of project development. 2) Involved in data modeling for cassandra (16 node cluster) and Elasticsearch (26 node cluster) deployment (production). 3) Development of RESTful web-services for Jio Media apps. 4) Comprehensive database management (MySQL) . 5) Migration from MySQL to Cassandra (NoSQL) for project scenarios which generates large amount of data (eg user's activity logs). 6) Performance improvement and monitoring of web-services. 7) Migration of search engine from Sphinx to ElasticSearch. 8) Also development of content ingestion system using PHP , MySQl, Jquery, HighCharts etc. 9) Basic Java Programming. 10) Integration with various systems like OSS/BSS, IDAM, Tibco Queue.