Ranjan S.

Full Stack Developer (Contract) @Indian Oil Corp Limited

Kolkata, IN

Developed and maintained scalable internal tools for financial and logistical operations using Java, JavaScript, TypeScript, and Python, with backend frameworks like Spring Boot and frontend frameworks like React and Angular- Implemented microservices architecture to improve system modularity and flexibility, enhancing development cycles and overall efficiency- Designed database schemas, managed migrations, and optimized query performance using Oracle SQL and PL/SQL, ensuring data integrity and reliability, while establishing robust backup strategies for business-critical data- Conducted rigorous testing, including unit, integration, and end-to-end tests, utilizing JUnit and Spring Test to ensure software performance and quality- Collaborated with product managers, designers, and developers to align software solutions with business objectives, gathering requirements, and drafting technical specifications- Enhanced user experience by iteratively improving applications based on user feedback, ensuring functionality and user-friendliness- Authored comprehensive technical documentation and user guides to facilitate knowledge transfer and ensure seamless system maintenance- Utilized Docker and Kubernetes to streamline application deployment and efficiently manage environments- Strengthened full-stack development expertise, emphasizing microservices architecture, database management, and collaborative workflows to achieve business and technical goals.