* Designed and implemented log scanning and ingestion pipelines using AWS services, improving issue detection and system visibility..

* Integrated OpenTelemetry instrumentation and tracing into microservices, enhancing end-to-end request visibility across distributed systems.

* Built and maintained Datadog dashboards to monitor application metrics, enabling real-time alerting.

* Developed AWS Lambda-based serverless workflows, including automated triggers and pre-signed S3 URL generation for secure log uploads.

* Enhanced scalable data processing jobs using AWS Glue (Glue Sync, Glue Scan) to catalog, validate, and transform incoming operational data.

* Utilized Athena to query log and metrics data stored in S3, enabling automated reporting and cost-efficient analytics.

* Implemented performance data upload pipelines, improving automation reliability and reducing manual processing.

Refined Salesforce.com service cloud to support live chat, live message, and other features to improve customer satisfaction and retention

▪ Discovered error in Memcached program when restarting server, performing in-depth testing to expose root cause of issue and applying swift repairs to ensure application up time

▪ Utilized Zookeeper and Kafka to create live chat system while employing Splunk for indexing logs for easy searching

▪ Oversaw massive, encrypted database containing information of millions of customers, ensuring 100% security at all times, Identified and communicated bug in Oracle using astute technical skills

▪ Developed app server handover, allowing for zero downtime for application deployment and patching

▪ Added and published 100+ metrics

▪ Leveraged mTLS for communication across systems, use k4a and hashiCorp vault for secret storing and reading

▪ Trained new staff members with effective leadership, enhancing team-wide performance and productivity

▪ Submitted patent for app server handover in distributed system, allowing for zero downtime

Spearheaded construction of data.com (acquired by Salesforce), online database containing comprehensive information of millions of companies, hundreds millions of contacts around the world

▪ Built all contribution flows, including single and bulk flows with fraud checking and matching as well as normalization and rules validation

▪ Implemented contact and company search index and refreshing using apache Solr

▪ Created contact recommendation engine based on purchase activity and contact similarity, leading to 50% more contact purchase

▪ Crafted entity recognition software using Naive Bayes classification algorithms

▪ Established contact rank and department classification based on title

▪ Formulated batch job framework, email transmitter, e-commerce platform, gamification system, etc

▪ Massive contacts deduplication, matching, enrichment using apache Camel, MongoDB

▪ Company news digestion and integration using apache Camel, Zookeeper, Kafka, Hbase and Solr

▪ Review data.com projects for security holes, XSS, SQL injection, CSRF, DOS/DDOS, etc

Fabricated, launched and enhanced www.hotwire.com (expedia.com subsidiary) using J2EE, JSP, Struts, Weblogic, Toplink and Oracle while overseeing quality assurance (QA), testing, and production release support

▪ Managed credit card processing, including payment authorization for online transactions, AVS checking, fraud score checking, charges, and refunds

▪ Assisted with customer service, stakeholder coordination, people and project management, resource deployment, and onsite troubleshooting of technical problems

▪ Supervised and tweaked content management system, utilizing Java, XSD schema, JAXB, XML, and XSLT to create personalized content

▪ Incorporated discount codes and other promotions using Java and SQL loader in order to boost monthly sales

▪ Authored clear and concise reports using PL/SQL stored procedures and delivered information to key stakeholders