VISHAL RK

Freelance Developer at Self-employed

Chennai

Self-employed

Jun 2023 - Present -1 yr, 9 months

Job Details:Designed and developed multiple real-world RESTful APIs using Spring Boot and modern relational/non-relational databases. Created an expense tracker API with category-wise tracking and monthly summaries using JPA and PostgreSQL. Built a URL shortener service with redirection logic, click tracking, and expiration functionality using Redis and PostgreSQL. Developed a secure task management API using JWT authentication with full CRUD operations on user and task entities.

IQ Backoffice

Aug 2021 - May 2023 -1 yr, 9 months

Job Details:Developed core modules for insurance application management using Spring Boot and Angular. Actively participated in agile sprints, ensuring timely completion of user stories. Implemented and maintained CI/CD pipelines using Jenkins; monitored code quality via SonarQube. Authored SQL stored procedures, optimized queries, and created unit test cases for backend modules. Supported application deployment from DIT to production environments.

DTDC Express Limited

Jul 2020 - Aug 2021 -1 yr, 1 month

Job Details:Maintained and improved performance of DTDC’s customer-facing mobile application. Created and maintained documentation for APIs, backend workflows, and deployment procedures. Supported cross-functional collaboration with development, QA, and design teams. Assisted in database design and enhanced application flow for operational efficiency.

Bachelor's Degree in Computer Applications
Guru Nayak College
Jan 2017 - Jan 2020 - 3 yr