About

Raj Kumar Singh is a highly skilled Principal Engineer at Paytm, with over 11 years of experience in the field of software engineering. His specialties include problem-solving, DS & Algorithms, Spring, Java, PHP, Hibernate, Kafka, Micro-service Architecture, Distributed Computing, LAMP based Enterprise Solutions, Reactive Programming, Large Scale Product Architecture and Design, and Platform Components/Stacks. Currently, Raj works at Paytm as a Principal Engineer - Wallet, where he is responsible for designing and implementing various wallet features. Prior to this, he worked at Stanza Living as an SDE - III, where he was responsible for developing and maintaining the company's web and mobile applications. He also worked at Fabhotels as a Senior Tech Lead, where he worked on hotel tech and CRS API’s using Spring 5 reactive, which reduced overall resource consumption and response time by 30%. Raj holds a B.Tech degree in Computer Science and Engineering from Guru Gobind Singh Indraprastha University. He also attended Kendriya Vidyalaya for his schooling. Raj has a strong understanding of various technologies, including Spring, Java, Kafka, Microservices, AWS, PHP, MySQL, and Software Engineering. Overall, Raj is a highly experienced and skilled software engineer with a proven track record of delivering high-quality products. He is passionate about solving complex problems and is always looking for ways to improve his skills and knowledge.