Kartikeya Tiwari

System Engineer

Tata Consultancy Services Limited•  September 2022 - Present•  Mumbai, India

Led migration from Spring MVC to Spring Boot, upgraded Bootstrap from v3 to v5, and migrated Angular JS frontend to Angular, enhancing performance and user experience. Designed and developed RESTful APIs using Spring Boot and Postman enabling seamless integration. Analyzed tasks and user stories, and allocated them to junior team members, ensuring timely delivery. Optimized data retrieval process, reducing load time from 30s to 5s using Apache Solr, improving performance significantly. Collaborated with cross-functional teams for smooth migration of applications to Azure cloud servers. Resolved critical and major code quality issues identified by Sonarqube tool. Performed regular system monitoring, troubleshooting of Jboss EAP on RHEL Servers to ensure high availability. Implemented security measures and conducted vulnerability assessments using OWASP ZAP and Burp Suite. Created process documents and conducted training sessions for new team members.

Assistant System Engineer

Tata Consultancy Services Limited•  September 2020 - August 2022•  Mumbai, India

Developed SQL procedures, functions, and triggers to enhance database functionalities. Improved search feature accuracy by optimizing database queries for large datasets using PostgreSQL. Provided crucial support in migrating applications to Azure cloud servers. Collaborated with the security team to maintain SAG - Siteminder for enhanced authentication and authorization. Optimized JBoss servers for better performance and scalability. Developed JUnit test cases and performed code coverage analysis using COBERTURA and EclEmma. Facilitated communication with users to gather feedback and incorporate necessary changes. Acted as Scrum master, facilitating sprint planning and daily stand-ups. Leveraged Apache POI library with Spring MVC to automate Excel generation. Conducted security assessments and penetration testing to identify and mitigate vulnerabilities.