Jeganathan Swaminathan, known as Jegan in the developer community, has spent over 26 years working in software as a consultant and trainer. He has worked at AMD, Oracle, and Siemens, consulted at Samsung and National Semiconductor, and delivered training for organisations like Bank of America, Wells Fargo, IBM, Verizon, Cisco, KPIT, Toshiba, Motorola Solutions, and Amdocs among others. He founded TekTutor, through which he delivers corporate and public training globally covering Java, Spring Boot, React, Kubernetes, Red Hat OpenShift, DevOps, and Microservices.

Jegan is a published author with Packt Publishing, having written Mastering C++ Programming among other titles. He has delivered several hundreds of training batches to software professionals who need practical, production-ready knowledge they can apply immediately on the job.

This four-volume series is a direct extension of that teaching philosophy. Every chapter is built around a real production-grade Netbanking application, so readers learn Spring Boot, React, MySQL, and Microservices architecture in a context that mirrors actual software projects, not isolated textbook examples.