Senior Developer Java Interview Questions

5,546 senior developer java interview questions shared by candidates

1. Explain the role of dependency injection in Spring Boot and how it facilitates modular and testable code. 2. Discuss the advantages and challenges of using microservices architecture compared to monolithic architecture in large-scale applications.
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Senior Java Developer

Interviewed at Wipro

3.6
Apr 17, 2024

1. Explain the role of dependency injection in Spring Boot and how it facilitates modular and testable code. 2. Discuss the advantages and challenges of using microservices architecture compared to monolithic architecture in large-scale applications.

L-1: Top10Employees list using Java 8 streams. Salary > 50000/- using Java 8 streams Salary > 50000/- and age < 40 (DOB) using Java 8 streams {1,2,3,4,5} sum = 6 Output {1,5} {2,4} using loops Questions: Java8 streams Functional interfaces HashMap internally working Red black tree @SpringBoot Application What happens without giving to the query params in @put method Schedulers CB pattern Uses of Kafka L-2: Spring boot & Microservices architect How to communicate Micro services How to call external APIs
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Senior Java Developer

Interviewed at Deloitte

3.8
May 25, 2026

L-1: Top10Employees list using Java 8 streams. Salary > 50000/- using Java 8 streams Salary > 50000/- and age < 40 (DOB) using Java 8 streams {1,2,3,4,5} sum = 6 Output {1,5} {2,4} using loops Questions: Java8 streams Functional interfaces HashMap internally working Red black tree @SpringBoot Application What happens without giving to the query params in @put method Schedulers CB pattern Uses of Kafka L-2: Spring boot & Microservices architect How to communicate Micro services How to call external APIs

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