
Shekhar
Java Developer
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Experiencia laboral
Java Developer Trainee
Software Engineering Daily • Tiempo completo
Jan 2026 - Mar 2026 • 2 mos
Worked as a Java Developer Trainee focusing on backend development and secure API integrations. Designed and implemented a robust Stripe Payment Gateway Integration System, enabling secure online transactions, end-to-end payment workflows, and event-driven architectures via webhooks. Developed scalable backend REST APIs using Java, Spring Boot, and Microservices architecture. Implemented advanced request validation layers (using Spring Boot JSR-380 validation framework and centralized @RestControllerAdvice exception handling) alongside a secure 3-phase validation approach utilizing HMAC authentication (HmacSHA256). Gained hands-on experience writing optimized SQL queries and managing data with MySQL. Followed industry best practices for version control using Git and adhered to clean service design patterns to ensure high application performance, fault tolerance, and reliability.