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Senior Java Developer Interview Questions

"Senior developers have years of experience in Java and have the knowledge and communication skills to mentor other developers. Companies prioritize strong technical skills and questions will focus on problem solving and critical thinking. A bachelor's degree in computer science or a related field, along with years of industry experience are standard."

5,300 senior java developer interview questions shared by candidates

Round1 --> Second largest element in array --> java new features --> DB quetion --> global exception handling(on notepad) -->spring boot annotations etc Round 2 --> ==> Questions 1>. ACID property with example in detail of each property 2>. normalization in detail with example 3>. SQL queries in detail 4>. Java stream api 5>. find first non repeating character in string using stream 6>> microservices , all things syntaxs 7>> spring microservice design patterns 8>. authorization and authentication in detail user level access 9>. what id kafka is down, redis is down 10>. singleton design pattern with serliazation and deseriliazation thing 11>. elastic search 12>. how does JPA use hibernate behind the scene 13>. Prototype vs Request 14>. SAGA and csrq 15>> Synchronized block vs method vs class
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Senior Java Developer

Interviewed at Apptware

4.1★
Jul 11, 2025

Round1 --> Second largest element in array --> java new features --> DB quetion --> global exception handling(on notepad) -->spring boot annotations etc Round 2 --> ==> Questions 1>. ACID property with example in detail of each property 2>. normalization in detail with example 3>. SQL queries in detail 4>. Java stream api 5>. find first non repeating character in string using stream 6>> microservices , all things syntaxs 7>> spring microservice design patterns 8>. authorization and authentication in detail user level access 9>. what id kafka is down, redis is down 10>. singleton design pattern with serliazation and deseriliazation thing 11>. elastic search 12>. how does JPA use hibernate behind the scene 13>. Prototype vs Request 14>. SAGA and csrq 15>> Synchronized block vs method vs class

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