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Junior Software Engineer Interview Questions

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7,225 junior software engineer interview questions shared by candidates

Algorithm & Data Structures: "Given an array of integers, return indices of the two numbers such that they add up to a specific target." (Classic Two Sum problem) System Design: "Design a scalable photo-sharing service like Instagram. How would you handle storage, retrieval, and user feeds?" Behavioural: "Tell me about a time you disagreed with a team member. How did you handle it?" Apple Values Fit: "Why do you want to work at Apple, and how do you align with our core principles around innovation and privacy?"
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Junior Software Engineer

Interviewed at Apple

4.1★
Jul 15, 2025

Algorithm & Data Structures: "Given an array of integers, return indices of the two numbers such that they add up to a specific target." (Classic Two Sum problem) System Design: "Design a scalable photo-sharing service like Instagram. How would you handle storage, retrieval, and user feeds?" Behavioural: "Tell me about a time you disagreed with a team member. How did you handle it?" Apple Values Fit: "Why do you want to work at Apple, and how do you align with our core principles around innovation and privacy?"

1. Static variable and static method. 2. What is constructor. Does it return any value. 3. How will you call another constructor from one constructor with creating object. 4. What do u know about ansible. 5. What is docker. 6. Dockerfile 7. Yaml 8. Polymorphism 9. Which method will be called child or parent method. 10. Can a static method call a nonstatic variable something 11. Python list and tuple 12. What is open Python..???? 13. Does Python have data types?
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Junior Software Engineer

Interviewed at Zensar Technologies

3.7★
Jan 2, 2022

1. Static variable and static method. 2. What is constructor. Does it return any value. 3. How will you call another constructor from one constructor with creating object. 4. What do u know about ansible. 5. What is docker. 6. Dockerfile 7. Yaml 8. Polymorphism 9. Which method will be called child or parent method. 10. Can a static method call a nonstatic variable something 11. Python list and tuple 12. What is open Python..???? 13. Does Python have data types?

The interview focused mainly on Core Java, SQL, and problem-solving: Java Class Loaders (types and responsibilities) Synchronization in Java (synchronized method vs block, thread safety) SQL queries using GROUP BY, COUNT, and JOIN Java coding question: Reverse a string without changing the position of special characters
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Junior Software Engineer

Interviewed at UST

3.8★
Dec 26, 2025

The interview focused mainly on Core Java, SQL, and problem-solving: Java Class Loaders (types and responsibilities) Synchronization in Java (synchronized method vs block, thread safety) SQL queries using GROUP BY, COUNT, and JOIN Java coding question: Reverse a string without changing the position of special characters

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