Fidelity Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Review tech stack and best practices
Take-home Technical Questionnaire (System Design & Engineering) Context As part of a take-home technical screen for a Software Engineer role, provide ...
Compare Spring and Spring Boot
What are the differences between Spring Framework and Spring Boot? Compare configuration approaches, auto-configuration, embedded servers, opinionated...
Write good tests and define integration tests
Test Design: Definitions, Trade-offs, and Best Practices Context You're building a small service for a take-home project (e.g., a REST API with a data...
Describe Java 8 features
What are the key new features introduced in Java 8? Explain when and how you would use lambda expressions, the Stream API, Optional, default methods o...
Describe Angular features
What are the key features of Angular? Discuss modules, components, templates, dependency injection, change detection, RxJS observables, routing, and f...
Explain using MapReduce
Using the MapReduce Programming Model to Process Large Datasets You are asked to explain how the MapReduce programming model processes large-scale bat...
Solve concurrency in Java
How do you handle concurrency in Java? Compare threads, the Executor framework, synchronized blocks, explicit locks, atomic variables, concurrent coll...
Explain motivation, strengths, dislikes, and tech stack
Behavioral & Technical Self‑Assessment (Software Engineer, Take‑Home Project Round) Context: You are interviewing for a Software Engineer role that in...