Harendra Kumar Ray

About Harendra Kumar Ray

Java Architect | Spring Boot & Redis Expert | Legacy Modernization Specialist | Scalable Backend Systems | Database Performance & MigrationI’m a backend-focused Java Architect with 17+ years of experience in designing, developing, and modernizing large-scale enterprise systems. My expertise lies in building high-performance, resilient architectures using Java, Spring Boot, Redis, and modern database strategies—while ensuring maintainability and scalability under real-world loads.AI/ML integration, including LLMs like Claude, Gemini, and RAG-based solutions for intelligent retrieval, analysis, and automationI am passionate about leveraging emerging AI technologies to enhance software intelligence, accelerate data-driven decisions, and create smarter enterprise solutions. I thrive at the intersection of technical excellence, architecture leadership, and AI innovation, mentoring teams to deliver solutions that are both robust and forward-looking.I\'ve led major initiatives in:Migrating monolithic systems to modular Spring Boot microservicesRefactoring legacy JDBC code to Spring JdbcTemplateConfiguring Redis 7.4 with Sentinel and SSL, both in Spring and plain JavaDriving complex database migrations with minimal downtimeIntegrating MongoDB, REST APIs, and cloud-ready solutionsI collaborate closely with DevOps, database, and product teams to deliver systems that are not just functional—but robust, secure, and ready for growth.Core Skills:Java | Spring Boot | Redis (Sentinel + SSL)| MongoDB | MariaDB | JDBC | JdbcTemplate | System Design | Microservices | API Development | Performance Tuning | Legacy System RefactoringApache Kafka, Apache Solr, MicroServices, Kubernetes, Docker, Elastic Search, Amazon S3, Web Services, Apache Flink, SOA, Hibernate, EJB 2.0, BitBucket etc.Apache, Nginx, Linux, Windows Server, Jenkins, GIT, HTML5, Dojo, XSLT, Shell scripting.Monitoring tools : ELK stack (Elastic Search/ LogStash/ Kibana) and New Relic.

Experience

1. Engineering Manager

   The Economic Times

   Apr 2025 — Present · Noida, IN

   AI/ML & LLM Integration: Developed the Markets GPT chatbot, an AI-driven tool that provides real-time stock market insights, leveraging large language models for intelligent analysis and recommendations. This project underscores my commitment to integrating AI technologies into financial services.https://economictimes.indiatimes.com/markets/stock-market-gptMarkets Page :Market Page data - https://economictimes.indiatimes.com/markets/live-coverage

Education

• Deendayal Upadhyay Gorakhpur University, Gorakhpur

  Bachelor’s Degree, Physics, Maths, Chemistry

• Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow

  Master’s Degree, Computer Science

Skills

• Xml
• Mongodb
• Currency
• Ejb
• Web Services
• Javascript
• Apache Pig
• Ajax
• Tortoise Svn
• Android Development
• Commodities
• Core Java
• Apache
• Hive
• Json
• Microsoft Sql Server
• Spring Framework
• Jsp
• Spring
• Tomcat
• Java Enterprise Edition
• Hadoop
• Agile Methodologies
• Servlets
• Apache Zookeeper
• Hibernate
• Ehcache
• Indices
• Jquery
• Equities
• Mysql
• Sharding
• Struts