Cristian Stancalau has an MSc and BSc in computer science and engineering from Babes-Bolyai University, where he has contributed as an assistant lecturer since 2018. Currently, he works as chief software architect, focused on enterprise code review at DevFactory.

Previously, he co-founded and lead a video technology start-up as technical director. Cristian has proven mentoring and teaching expertise in both the commercial and academic sectors, advising on Java technologies and product architecture.

Vishnu Govindrao Kulkarni is an enthusiastic freelancer solutions provider (with Fortune Consulting). He has a wide range of experience in various domains, with 8 years of experience working with full-stack Java, Java Spring, Spring Boot, the Hibernate REST API, and Oracle. He has also had the opportunity to work with several organizations to build enterprise solutions using Java and Java frameworks. Today, he continues to design and develop solutions while closely working with clients to help them derive value from these solutions.

Previously, he worked as the technical reviewer for the book Java Fundamentals for Packt Publishing.