HomeCoursesEntry-Level Software Engineer Interview Questions

Beginner

10h

Updated 5 months ago

Entry-Level Software Engineer Interview Questions

These questions are tailored for aspiring software engineers, offering essential interview prep and guided practice to help you build confidence and showcase your foundational skills effectively.

Join 2.8M developers at

Overview

Content

Reviews

Entry-level software engineer interviews focus on your grasp of programming fundamentals, problem-solving ability, and understanding of how software systems work. In this set of interview questions, you’ll tackle problems and scenarios that reflect the types of challenges commonly faced by new software engineers. You’ll practice writing and debugging functions in your preferred programming language, solving algorithmic problems involving arrays, strings, hash maps, and recursion, and analyzing time and space complexity. The questions also cover foundational technical knowledge, such as explaining core concepts like HTTP, databases, and APIs. Additionally, you’ll be asked to reason through simple system design tasks, like structuring a basic to-do app or implementing a queue—helping you develop both technical clarity and practical design thinking. Each question is designed to reinforce your understanding of computer science fundamentals and help you build fluency in solving problems under time constraints.

Entry-level software engineer interviews focus on your grasp of programming fundamentals, problem-solving ability, and understan...Show More

WHAT YOU'LL LEARN

Strategies to approach entry-level software engineer interview questions with clarity and a solid understanding of the basics.

Pattern-based problem solving using techniques like two pointers, sliding windows, and hash maps.

Methods to clearly communicate your thinking, improve your code, and reflect on time-space trade-offs.

Key programming principles include object-oriented design, databases, APIs, and version control.

Guidance for succeeding in behavioral interviews and communicating technical decisions.

Ways to practice effectively and grow your confidence through consistent, focused preparation.

Strategies to approach entry-level software engineer interview questions with clarity and a solid understanding of the basics.

Content

921 Lessons477 Quizzes476 Challenges

Getting Started

2 Lessons

Course Overview

Who Should Take This Course

Two Pointers

50 Lessons

Introduction to Two Pointers

Valid Palindrome

Solution: Valid Palindrome

3Sum

Solution: 3Sum

Remove Nth Node from End of List

Solution: Remove Nth Node from End of List

Sort Colors

Solution: Sort Colors

Reverse Words in a String

Solution: Reverse Words in a String

Valid Word Abbreviation

Solution: Valid Word Abbreviation

Strobogrammatic Number

Solution: Strobogrammatic Number

Minimum Number of Moves to Make Palindrome

Solution: Minimum Number of Moves to Make Palindrome

Next Palindrome Using Same Digits

Solution: Next Palindrome Using Same Digits

Lowest Common Ancestor of a Binary Tree III

Solution: Lowest Common Ancestor of a Binary Tree III

Count Pairs Whose Sum is Less than Target

Solution: Count Pairs Whose Sum is Less than Target

Count Subarrays With Fixed Bounds

Solution: Count Subarrays With Fixed Bounds

Get the Maximum Score

Solution: Get the Maximum Score

Find the Lexicographically Largest String From Box II

Solution: Find the Lexicographically Largest String From Box II

Create Maximum Number

Solution: Create Maximum Number

Append Characters to String to Make Subsequence

Solution: Append Characters to String to Make Subsequence

Squares of a Sorted Array

Solution: Squares of a Sorted Array

Reverse String

Solution: Reverse String

Intersection of Two Linked Lists

Solution: Intersection of Two Linked Lists

Remove Element

Solution: Remove Element

String Compression

Solution: String Compression

Partition Labels

Solution: Partition Labels

Next Permutation

Solution: Next Permutation

Rotate Array

Solution: Rotate Array

Valid Palindrome II

Two Pointers

Mock Interview

Premium

Fast and Slow Pointers

21 Lessons

Fast and Slow Pointers

Mock Interview

Premium

Sliding Window

33 Lessons

Sliding Window

Mock Interview

Premium

Intervals

18 Lessons

Merge Intervals

Mock Interview

Premium

In-Place Manipulation of a Linked List

26 Lessons

In-place manipulation of a linked list

Mock Interview

Premium

Heaps

25 Lessons

Heaps

Mock Interview

Premium

K-way merge

15 Lessons

K-way merge

Mock Interview

Premium

Top K Elements

37 Lessons

10.

Modified Binary Search

36 Lessons

Modified Binary Search

Mock Interview

Premium

11.

Subsets

16 Lessons

12.

Greedy Techniques

41 Lessons

13.

Backtracking

35 Lessons

14.

Dynamic Programming

56 Lessons

Dynamic Programming

Mock Interview

Premium

15.

Cyclic Sort

12 Lessons

16.

Topological Sort

22 Lessons

Topological Sort

Mock Interview

Premium

17.

Sort and Search

31 Lessons

18.

Matrices

37 Lessons

19.

Stacks

30 Lessons

20.

Graphs

31 Lessons

Graphs

Mock Interview

Premium

21.

Tree Depth-First Search

35 Lessons

22.

Tree Breadth-First Search

26 Lessons

Tree Breadth First Search

Mock Interview

Premium

23.

Trie

30 Lessons

24.

Hash Maps

44 Lessons

25.

Knowing What to Track

32 Lessons

Knowing what to track

Mock Interview

Premium

26.

Union Find

28 Lessons

Union Find

Mock Interview

Premium

27.

Custom Data Structures

32 Lessons

28.

Bitwise Manipulation

32 Lessons

Bitwise Manipulation

Mock Interview

Premium

29.

Math and Geometry

47 Lessons

Math and Geometry

Mock Interview

Premium

30.

Challenge Yourself

40 Lessons

31.

Conclusion

1 Lessons

Where to Go from Here?

Coding Patterns

Mock Interview

Premium

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 2.8 million developers working at companies

"These are high-quality courses. Trust me the price is worth it for the content quality. Educative came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Software Developer

Carlos Matias La Borde

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

Free Resources

FOR TEAMS

Interested in this course for your business or team?

Unlock this course (and 1,000+ more) for your entire org with DevPath

Frequently Asked Questions

What do entry-level software engineer interviews actually test?

Core problem-solving with data structures and algorithms, code correctness, time/space complexity, and your ability to communicate clearly while iterating.

Will I face hands-on tests or whiteboard exercises at entry-level SE interviews?

Yes. Many interviews include a live coding segment—either writing code on a whiteboard or in a shared online editor. The focus is on clear thinking, effective approach, and correctness rather than perfect syntax.

Are behavioral questions included for entry-level software engineer roles?

Absolutely. Interviewers want to know about your education, projects, teamwork, leadership, adaptability, and why you’re passionate about software engineering.

What soft skills matter for an entry-level software engineer interview?

Communication, collaboration, and openness to mentorship are key. Interviewers test whether you can learn quickly, clarify requirements, and contribute positively in a team.

How much System Design is expected for an entry-level software engineer interview?

Usually fundamentals only: simple API boundaries, pagination, caching basics, or how you’d structure a small feature. Depth is limited; clarity and trade-offs matter more than scale diagrams.

Will I face debugging or refactoring tasks during an entry-level SE interview?

Commonly. You might fix an off-by-one bug, remove quadratic hotspots, or refactor into cleaner helpers without changing behavior.

What are common pitfalls to avoid during an entry-level software engineer interview?

Skipping edge cases, not reading constraints, premature optimization, unclear variable names, no tests, and hand-waving complexity.

How should I structure my on-the-spot approach during an entry-level SE interview?

Restate the problem → clarify constraints → propose a baseline → analyze complexity → implement cleanly → test with cases → discuss improvements.

What does an “excellent” entry-level answer sound like for a software engineer interview?

It’s precise (inputs/outputs defined), justifies a data structure choice, states complexity, handles edges, includes quick tests, and explains trade-offs plainly.

Learn in-demand tech skills in half the time