Shrayan Dey

Software Engineer currently working as an Associate Engineer – Software at Inspirisys Solutions Ltd, deployed onsite at CESC Computer House (IT Department of CESC), where I contribute to building and maintaining enterprise-scale applications used in critical operations. I specialize in Core Java and Spring Boot, developing scalable web applications and RESTful APIs while also working extensively on legacy systems enhancing them with new modules, improved performance, and stronger security. My work involves implementing secure coding practices to mitigate vulnerabilities such as XSS, CSRF, and session hijacking, along with modern authentication mechanisms like JWT-based security. On the frontend, I build responsive and dynamic interfaces using HTML, CSS, JavaScript, jQuery, AJAX, and Bootstrap, balancing usability with performance. I primarily work with Oracle Database (PL/SQL) and occasionally MySQL, handling complex queries, data optimization, and integration with enterprise systems. I also deploy applications on Oracle WebLogic Server, with prior experience in GlassFish and Tomcat. Beyond web development, I am expanding into Android development (Kotlin & Dart) and have independently built a feature-rich PDF Scanner application with capabilities like search, editing, tagging, filtering, and document organization. My journey reflects continuous growth—from building foundational web applications to working on enterprise systems in a production environment. I focus on writing clean, secure, and scalable code while constantly learning and adapting to new technologies.