Our Books
Learn from the experience of Sunil Sahu, Architect of Open Source Technologies. His books combine technical depth, practical examples, and real-world development experience to help you grow as a Java professional.
Author, Technology Educator & Entrepreneur
With over 30 years of industry experience, Sunil Sahu believes that technology education should go beyond theory. At Rays EdTech, his mission is to turn knowledge into practical skills, confidence, and successful careers — building कमाऊ Developers.
Sunil Sahu, popularly known as the "Java Man of India," is a technology entrepreneur, software architect, technology educator, and author with over 30 years of experience in Software Engineering, Artificial Intelligence, Data Science, Cloud Computing, and Enterprise Architecture.
After building his career with stron Capgemini and later Impetus, where he developed enterprise solutions for global organizations including ING, Food Lion, and Wells Fargo, Sunil returned from the United States with a vision to contribute to India's technology ecosystem. In 2006, he founded Rays EdTech and later NCS India to deliver world-class technology education and enterprise software solutions from the heart of India.
Today, Sunil is widely recognized as one of India's leading technology mentors and an expert in enterprise software. He has trained 50,000+ students and professionals , helped 5,000+ learners launch successful careers in leading multinational companies, and inspired thousands of aspiring developers to pursue excellence in technology.
As the Founder of NCS India, he has delivered mission-critical software solutions for Fortune 500 companies, international organizations, and government agencies, including Johnson Controls, Kaiser Permanente, UNICEF, Zynga, and several Government of India and State Government initiatives. He is also the creator of CuickDev, a no-code/low-code platform for rapid enterprise application development.
His contributions to technology and education have been recognized with the MP Change Maker Award by The Economic Times and the Karmveer Award by Dainik Bhaskar.
He is a sought-after speaker at universities, faculty development programs (FDPs), and technology conferences, sharing practical insights on Artificial Intelligence, Data Science, Enterprise Software, and emerging technologies.
Through the SELF-LEARN series, Sunil combines decades of industry experience with a passion for teaching, making complex technologies simple through practical explanations, real-world projects, and hands-on learning. His mission is to empower learners from every background with the knowledge, confidence, and practical skills to build successful careers in the AI-driven world.
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