Apr 2024 – Present · 2 yrs 1 mo

• PKLSDataIngestion - ETL workflow for Alexa Personal Knowledge
• Contributed to the development of PKLSDataIngestionService, a critical
• component responsible for ingesting and processing approximately 5 billion
• Alexa activity log entries. This service played a pivotal role in feeding the
• machine learning models with vast amounts of data, enabling the generation of
• personalized knowledge about customers, which was subsequently stored in
• the PersonalKnowledgeService. Used Apache Spark and AWS Step Functions.
• PKSARestService - Central store for Customer Personal Knowledge
• Onboarded Retail customer interests to PKSARestService annd Designed and
• implemented DMA compliance for PKSARestService.

Jul 2022 – Apr 2024 · 1 yr 9 mos

• PersonIDService – Alexa Profile Management
• Terms and Conditions Status Backfill : Identified and resolved a circular
• dependency in the CreateAlexaProfile flow, which is causing silent failures in
• setting TnC for Alexa Profiles. Ideated and performed the backfill of TnC for 66
• million customers. Used AWS Glue Crawler and Athena to get source dataset
• for backfill and used SQS and Lambda for event source mapping
• PKSGyaanService - Recommendation service for Alexa Follows
• OpenSearch Index Structure, Adapter Implementation, and Monitoring:
• Conducted performance testing on OpenSearch index structures (Nested Type
• and Routing Key) to optimize aggregation query latencies. Implemented an
• OpenSearch Adapter for update/retrieval operations with concurrency control,
• and developed an integration testing strategy using a test index to prevent
• breaking changes. Deployed OpenSearch infrastructure set up logs, metrics
• and dashboards/alarms for monitoring.
• Tech Involved: Java, J2EE, Spring, Kotlin, TypeScript, ECS, SQS, Lambda, Glue