Apr 2023 – Oct 2025 · 2 yrs 6 mos · On-site

• Currently working on New Reporting and Analytics Pipeline System using Apache Flink, Apache Druid, Apache Kafka & Cockroach DB
• Building a New Document Store using Aerospike/TiKV for 20-30% faster retrieval of products
• New search-index on ARM coupled with Apache Solr 9 and deeper nested document support leading to 20-30% better query performance
• New query-engine for search-index with custom DSL support, AST for DSL translation, delivering 10-15% better query formation efficiency
• New Service using Cockroach DB and redis for Enhanced user-segmentation support, improving latency by 40%
• Custom Search, Facet and Debug Apache Solr Components to inject external documents from multiple sources
• Adopted ProtoBuf & gRPC for inter-service communication, improving data transfer times by 20%
• Helped implementing Git-based CD Pipeline using GitOps/FluxCD and its adoption across seven datacenters

May 2021 – Mar 2023 · 1 yr 10 mos · On-site

• Built a highly concurrent service in Golang that does inter-service request routing with dynamic network topology based on request parameters, handling 7 datacenters in 4 geographies
• Helped implementing event-driven cross-region communication system on NATS
• Built a revamped promotion engine to execute site merchandiser defined business rules using Mongo, Redis and Elasticsearch
• Built an improved recommendations pipeline with new services added for handling templating config and core recommendations logic to support page based recommendations
• A centralized hierarchical configuration management service using Dgraph
• with config change notifications using NATS

Mar 2015 – Apr 2021 · 6 yrs 1 mo · On-site

• Built a Custom query parser with a custom grammar and several Analysis Tokenizers and Filters to help enable semantic search in Apache Solr
• Transformed monolithic query pipeline to microservices architecture, moving from large monolith built on solr 4.5 to microservices design
• Created custom index solution based on Solr 6.6 fork with custom plugins, query parsers, and search components with support for nested documents
• Contributed to query expansion service built using Mongo and Zookeeper for change event notifications
• Used dependency parsing of top queries to automate generation of “Must Have Tokens” to support semantic retrieval using spaCy and Spark. Also presented it at Berlin Buzzwords, 2018
• Contributed to the workflow orchestration service to automate generation of various backend ML models

Jul 2014 – Feb 2015 · 7 mos · On-site

• Developed a Bigcommerce Feed & Recommendations app utilizing Webhooks and Bigcommerce API for real-time data updates.
• Integrated Unbxd Search and Recommendations across diverse platforms including Magento, Shopify, and Volusion. Enhanced feed management efficiency through Redis, improving response times and user experience.

Jan 2014 – Jun 2014 · 5 mos · On-site