Abhishek Kesharwani

Managing ~500 Solr nodes with ~1TB of indexed data. Automated SOLR deployments using AWS CloudFormation. Developed and maintained search APIs; implemented feature enhancements and bug fixes. Migrated monitoring from New Relic to SolarWinds for the CoreSearch infrastructure. Designed a self-healing mechanism to auto-restart SOLR services. Migrated NLP plugin from BasisTech to OpenNLP across a system of 800+ Solr nodes.

Migrated Reviews and Q&A system to Lucidworks Fusion. Implemented default variant logic for product search. Enabled SSL and Kerberos authentication in SOLR. Migrated 150GB of data (71 collections) from Cloudera HDFS SOLR 4.10.3 to 5.3.2. Built ingestion pipelines from diverse sources: JSON, XML, S3, SharePoint, FTP, and web crawlers. Enabled real-time inventory updates and pricing changes for the e-commerce catalog. Managed 5 Solr clusters across different zones with inter-cluster syncing. Integrated Prometheus and Grafana for SOLR monitoring. Developed REST APIs using Spring Boot. Implemented PDF parsing using Apache Tika.

Enhanced and maintained news feed APIs. Developed feed ingestion logic using SOLRJ and Java. Monitored API server health and ensured high availability.

Enhanced product listing using Solr and Java. Indexed Oracle DB data into Solr using Perl scripts. Managed search infrastructure including Tomcat, Solr, and Jenkins.

Migrated domain from HTTP to HTTPS. Optimized images for web using ImageMagick, AWS CLI, and EC2. Created dynamic directory templates; implemented Varnish and HTTP/2.

Built dynamic web pages using JavaScript, HTML, CSS, PHP, and AWS. Optimized front-end and back-end performance for SEO. Analyzed traffic using Google Analytics, Webmaster Tools, and S3. Extracted structured data (ISQ) from unstructured product descriptions.