HARIHARAN N
Chennai
Summary
Results-driven Java Developer with 3+ years of experience in building, maintaining, and supporting enterprise-grade backend applications. Strong expertise in Core Java, JDBC, SQL, and Oracle PL/SQL, with hands-on experience in developing robust server-side logic and integrating Java applications with Oracle databases. Proficient in writing optimized SQL queries, PL/SQL procedures, packages, and triggers to support high-performance applications. Experienced in Agile SDLC, production support environments, and collaborating with cross-functional teams to deliver scalable and reliable solutions.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Senior Software Engineer
CAPGEMINI Pvt Ltd, Client : BARCLAYS
Chennai
12.2022 - 01.2026
Cloudera to Open source hadoop Migration
- This project focused on migrating large-scale data workloads from a Cloudera Hadoop ecosystem to an Open-Source Hadoop platform.
- The scope included migrating over 240 Hive databases sourced from multiple enterprise systems such as Oracle and Teradata.
- The migration involved reconfiguring connection parameters, SQL logic, and data processing workflows to ensure compatibility with the target Hadoop environment.
- End-to-end validation was performed to ensure data accuracy, performance, and business continuity before deployment to higher environments and production scheduling.
- Technologies used include programming with Java (Core Java, JDBC).
- Database expertise with Oracle SQL, PL/SQL, and Hive SQL.
- Experience with Big Data technologies such as Hadoop and Hive.
- Proficient in UNIX Shell Scripting.
- Project management experience using JIRA.
- Familiar with documentation tools like Confluence.
- Client: Barclays
Education
Master of Business Administration -
Pondicherry University
Puducherry, India01.2025
Bachelor of Technology - Computer Science and Engineering
Sri Manakula Vinayagar Engineering College
Puducherry, India05.2022
Skills
- CORE JAVA
- HTML5
- JavaScript
- SPRING BOOT
- PL/SQL - Oracle
- Visual Studio Code
- Spring Tool Suite(STE)
- Eclipse
- UNIX scripting
- Putty
Certification
- Java Certified Foundations Associate, 1Z0-811
- Oracle Database Program with PL/SQL exam, 1Z0-149
- Microsoft Certified: Azure Fundamentals, AZ-900
Accomplishments
- Applause for Team Award, Received the 'Applause for Team Award' for quick learning of project technology and for delivering requirements on time.
- WOW Award, Awarded the 'WOW Award' for internal team applause.
Timeline
Senior Software Engineer
CAPGEMINI Pvt Ltd, Client : BARCLAYS
12.2022 - 01.2026
Master of Business Administration -
Pondicherry University
Bachelor of Technology - Computer Science and Engineering
Sri Manakula Vinayagar Engineering College