The Knowledge Graph, Google's knowledge base, enriches search results with structured information from diverse sources, helping users find answers without navigating multiple sites.I managed complex ETL projects, processing large datasets across areas like dataset searches, locale repositories, and load testing, using Python, MS SQL, and Google’s internal tools for high-quality, timely delivery.Key projects:1. Yahoo Japan: Oversaw ETL jobs (dumping, sharding, GCP uploads), using RDF for pipeline data in SSTable format. Built with Java and Apache Beam, the pipeline prioritized job execution with data stored in immutable PTables and PCollections.2. Japan High School Baseball: Handled manual data curation, modified Python and Java for new player and team data, monitored live games, and verified scores.3. Health COF: Used a Java tool for bulk updates on Knowledge Panels, modifying code per client needs, performing data comparisons, and executing bulk updates.

Key member of the primary team for the "Transformation" initiative with a major telecommunications company in the United States, responsible for managing modules involving intricate business processes.Developed and implemented REST APIs; conducted JUNIT testing to ensure optimal performance.- Worked with Isaac-WFE Big Data as a Java specialist and data engineer, migrating from Java 8 to Java 21 and maintaining big data Java code and JAR files.- Managed 18 production clusters, including on-premises disaster recovery (DR) and production (PR) systems: - Ensured smooth operations and timely data processing for downstream teams. - Monitored performance and addressed bottlenecks. - Applied software updates and patches for the latest features and bug fixes.- Provided data support during testing and assisted in transitioning from big data to Databricks.- Helped downstream teams receive data in the required format and frequency by developing or modifying data pipelines.- Collaborated with data engineers and data scientists to troubleshoot cluster and data issues.- Developed and implemented data management and governance policies.- Mentored and trained team members.- Presented the team's work to stakeholders.

Part of the core development team for the "Capacity Planning 2 (CP2)" project with AT&T (US).Handled complex modules and was responsible for the creation and maintenance of REST APIs and performing JUNIT testing.

Gained practical experience in full-stack web development.

Authored technical and non-technical articles, enhancing readers' understanding of complex topics.

Developed a chat application using core Java, honing my programming and problem-solving skills.