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204 programmer developer interview questions shared by candidates

3 interviews of 30 mins each: First interview: (2 people- 1 worked on Android other on Angular) 1. Tell me about yourself. 2. What is your strengths technically? 3. Do you know how classes get loaded onto servers? What is the precedence? 4. What did you do in your summer internship? Explain in detail. 5. JavaScript- call back, some other term starting 'c' 6. Virtual dom, difference.., why is virtual dom imp? What were the difficulties earlier that they felt the necessity to build that? 7. What is something in your career that outshines everything else? The highlight/accomplishment? 8. Some other smaller questions Second interview: (1 person- tech lead, working on credit card application) 1. Tell me about yourself. 2. So you worked in Java, tell me something about Java. 3. What is oop? 4. What is rest API? 5. What's stateless property of it? Advantage? 6. Asked about reactjs..tell me about reactjs.. 7. Angular v/s React 8. Asked about roles I was interested in; backend/front end? 9. If your boss gives you too little/ too much work for a given time, how will you handle each situation? What will you do? 10. If at work, you aren't able to do a particular task given to you, what will you do? 11. Tell me about Spring (mvc). 12. Some other questions.. Third interview: (1 person- tech lead, working on credit card applications) 1. Tell me about yourself. 2. Saw that I'd taken courses like AI, NLP, ML so asked me to explain about neural nets in 2 mins on white board. 3. Applications of ANN in real life; banking. 4. Application of NLP in banking. 5. Asked preference about front end/ backend role. 6. So you've worked with Java, what chapter from a Java book can you teach someone? 7. Teach me that topic in 5 mins. 8. How would you design/ code a cross&nuts game(xo) as a Java application, show on white board. 9. Difference between Arraylist and Linkedlist? 10. How are Arraylists implemented in Java?(memory allocation that happens when an Arraylist is declared). How do they suddenly become dynamic, what exactly goes on behind the scenes in Java? 11. Types of access modifiers? Difference between them. Asked to another candidate: Given a huge array of different numbers, how would you find a duplicate number in the array?
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Applications Developer/Programmer Analyst

Interviewed at Citi

3.6★
Nov 13, 2017

3 interviews of 30 mins each: First interview: (2 people- 1 worked on Android other on Angular) 1. Tell me about yourself. 2. What is your strengths technically? 3. Do you know how classes get loaded onto servers? What is the precedence? 4. What did you do in your summer internship? Explain in detail. 5. JavaScript- call back, some other term starting 'c' 6. Virtual dom, difference.., why is virtual dom imp? What were the difficulties earlier that they felt the necessity to build that? 7. What is something in your career that outshines everything else? The highlight/accomplishment? 8. Some other smaller questions Second interview: (1 person- tech lead, working on credit card application) 1. Tell me about yourself. 2. So you worked in Java, tell me something about Java. 3. What is oop? 4. What is rest API? 5. What's stateless property of it? Advantage? 6. Asked about reactjs..tell me about reactjs.. 7. Angular v/s React 8. Asked about roles I was interested in; backend/front end? 9. If your boss gives you too little/ too much work for a given time, how will you handle each situation? What will you do? 10. If at work, you aren't able to do a particular task given to you, what will you do? 11. Tell me about Spring (mvc). 12. Some other questions.. Third interview: (1 person- tech lead, working on credit card applications) 1. Tell me about yourself. 2. Saw that I'd taken courses like AI, NLP, ML so asked me to explain about neural nets in 2 mins on white board. 3. Applications of ANN in real life; banking. 4. Application of NLP in banking. 5. Asked preference about front end/ backend role. 6. So you've worked with Java, what chapter from a Java book can you teach someone? 7. Teach me that topic in 5 mins. 8. How would you design/ code a cross&nuts game(xo) as a Java application, show on white board. 9. Difference between Arraylist and Linkedlist? 10. How are Arraylists implemented in Java?(memory allocation that happens when an Arraylist is declared). How do they suddenly become dynamic, what exactly goes on behind the scenes in Java? 11. Types of access modifiers? Difference between them. Asked to another candidate: Given a huge array of different numbers, how would you find a duplicate number in the array?

Why do we need Object-Oriented Programming, and what is the difference between it and procedural programming? Understanding SOLID principles from a code snippet, primarily injections (Dependency Injection). LeetCode - find the most frequent element, merge intervals. Databases - defining entities and relationships.
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Junior Web Developer/Programmer

Interviewed at NGSoft

2.8★
May 26, 2026

Why do we need Object-Oriented Programming, and what is the difference between it and procedural programming? Understanding SOLID principles from a code snippet, primarily injections (Dependency Injection). LeetCode - find the most frequent element, merge intervals. Databases - defining entities and relationships.

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