Interview blog
Curated interview material for specific skills and levels - interactive quizzes and open-ended prompts. When you are ready for questions grounded in a real job posting, practice in the app.
Showing 9 posts
- Interactive quiz
Jun 6, 2026
JavaScript async and await quiz (10 questions)
Ten interview-style JavaScript async and await questions covering promises, error handling, sequencing, concurrency, and common frontend or full-stack pitfalls.
- JavaScript
- Async
- Full-stack
- Interactive quiz
Jun 6, 2026
JavaScript closures and scope quiz (10 questions)
Ten interview-style JavaScript questions on lexical scope, closures, hoisting, block scope, and common callback pitfalls for mid-level frontend engineers.
- JavaScript
- Closures
- Frontend
- Interactive quiz
Jun 6, 2026
JavaScript fundamentals quiz (10 questions)
Ten interview-style JavaScript fundamentals questions covering types, equality, arrays, objects, functions, and common runtime behavior for junior frontend engineers.
- JavaScript
- Frontend
- Fundamentals
- Interactive quiz
Jun 5, 2026
Java concurrency fundamentals quiz (10 questions)
Ten interview-style Java concurrency questions covering thread safety, executors, locks, atomics, and concurrent collections for mid-level backend engineers.
- Java
- Concurrency
- Backend
- Interactive quiz
Jun 5, 2026
Java memory model quiz (15 questions)
Fifteen senior-level Java memory model questions on visibility, happens-before, publication, reordering, volatile, and safe concurrent initialization.
- Java
- JVM
- Concurrency
- Backend
- Interactive quiz
Jun 5, 2026
Java streams and collectors quiz (10 questions)
Ten Java Streams interview questions on laziness, collectors, side effects, Optional, grouping, and parallel stream trade-offs for mid-level backend engineers.
- Java
- Streams
- Backend
- Interactive quiz
May 30, 2026
Java collections interview quiz (5 questions)
Five interview-style Java collections questions on lists, maps, sets, and concurrent access, with concise explanations and follow-up notes.
- Java
- Collections
- Backend
- Open-ended
May 29, 2026
Behavioral and system design interview prompts for mid-level engineers
Eight realistic interview prompts on collaboration, incidents, architecture, and trade-offs, with guidance on what a strong answer should cover.
- Behavioral
- System design
- Mid-level
- Interactive quiz
May 28, 2026
Java backend interview quiz (10 questions)
Ten realistic Java interview questions for mid-level backend engineers, covering collections, concurrency, language features, exception handling, and core API choices.
- Java
- Mid-level
- Backend