Notion

Software Engineer

Software EngineerL3Medium

The Software Engineer L3 interview process at Notion is designed to assess a candidate's foundational software engineering skills, problem-solving abilities, and cultural fit within the company. It typically involves multiple rounds, including technical assessments, behavioral interviews, and a final hiring manager discussion.

Rounds

3

Timeline

~10 days

Experience

1 - 3 yrs

Salary Range

US$100000 - US$130000

Total Duration

150 min

Overall Evaluation Criteria

Technical Skills

Problem-solving skills
Algorithmic thinking
Code quality and efficiency
Understanding of fundamental computer science concepts

Behavioral and Cultural Fit

Communication clarity
Teamwork and collaboration
Adaptability and learning agility
Alignment with Notion's values

Potential and Growth

Ability to articulate technical decisions
Understanding of software development lifecycle
Potential for growth within the team

Preparation Tips

1Review fundamental data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, recursion).
2Practice coding problems on platforms like LeetCode, HackerRank, or Coderbyte, focusing on medium-difficulty problems.
3Understand object-oriented programming principles and design patterns.
4Brush up on system design concepts, even for junior roles, to understand scalability and architecture.
5Prepare to discuss your past projects in detail, highlighting your contributions and the challenges you faced.
6Research Notion's products, mission, and values to understand how your role contributes.
7Prepare answers to common behavioral questions using the STAR method (Situation, Task, Action, Result).

Study Plan

1

Data Structures and Algorithms Fundamentals

Weeks 1-2: Data Structures (Arrays, Linked Lists, Stacks, Queues, Hash Maps) & Basic Algorithms (Sorting, Searching).

Weeks 1-2: Focus on core data structures like arrays, linked lists, stacks, queues, and hash maps. Practice problems related to these structures, emphasizing time and space complexity analysis. Understand basic sorting and searching algorithms.

2

Advanced Data Structures and Algorithmic Techniques

Weeks 3-4: Advanced Data Structures (Trees, Graphs) & Recursion/DP.

Weeks 3-4: Dive into more complex data structures like trees (binary trees, BSTs, tries) and graphs. Study graph traversal algorithms (BFS, DFS) and common tree operations. Begin exploring dynamic programming and recursion.

3

System Design Introduction

Week 5: System Design Basics (Scalability, Databases, Caching).

Week 5: Focus on system design fundamentals. Understand concepts like scalability, availability, databases (SQL vs. NoSQL), caching, load balancing, and API design. Practice designing simple systems.

4

Behavioral and Cultural Fit Preparation

Week 6: Behavioral Interview Prep (STAR method, Notion values).

Week 6: Prepare for behavioral interviews. Review your resume and identify key projects and experiences. Practice answering common behavioral questions using the STAR method. Research Notion's company culture and values.

Commonly Asked Questions

Write a function to reverse a linked list.
Given an array of integers, find the two numbers that add up to a specific target.
Explain the difference between a process and a thread.
Describe a situation where you had to deal with a difficult stakeholder.
How would you design a URL shortener service?
What are your strengths and weaknesses as a software engineer?
Tell me about a time you failed and what you learned from it.

Location-Based Differences

Remote

Interview Focus

Adaptability to remote collaboration tools and practices.Communication skills in a distributed environment.Proactive problem-solving in a remote setting.

Common Questions

Describe a challenging bug you fixed and your approach.

How do you stay updated with new technologies?

Tell me about a time you disagreed with a teammate and how you resolved it.

Tips

Ensure a stable internet connection and a quiet environment.
Familiarize yourself with Notion's collaboration features.
Be prepared to articulate your thought process clearly, as non-verbal cues might be less apparent.

San Francisco

Interview Focus

Understanding of core data structures and algorithms.Ability to write clean, maintainable, and efficient code.Collaboration and teamwork within an office environment.

Common Questions

How do you approach learning a new codebase?

Describe a project you are particularly proud of.

What are your thoughts on code reviews?

Tips

Be prepared to whiteboard solutions or use collaborative coding tools.
Understand Notion's product and how software engineering contributes to it.
Engage actively with interviewers and ask clarifying questions.

Process Timeline

1
Coding Challenge45m
2
Behavioral and Cultural Fit45m
3
Hiring Manager and System Design Discussion60m

Interview Rounds

3-step process with detailed breakdown for each round

1

Coding Challenge

Solve coding problems focusing on data structures and algorithms.

Technical Interview (Coding)Medium
45 minSoftware Engineer

This round focuses on assessing your fundamental programming skills. You will be asked to solve one or two coding problems, typically involving data structures and algorithms. The interviewer will evaluate your approach to problem-solving, your ability to write clean and efficient code, and your understanding of time and space complexity.

What Interviewers Look For

Logical thinkingAbility to translate requirements into codeAttention to detailBasic understanding of CS fundamentals

Evaluation Criteria

Problem-solving approach
Correctness of the solution
Code clarity and efficiency
Understanding of data structures and algorithms

Questions Asked

Given an array of integers, return indices of the two numbers such that they add up to target.

ArrayHash TableTwo Pointers

Implement a function to check if a binary tree is a valid Binary Search Tree.

TreeDepth-First SearchBinary Search Tree

Preparation Tips

1Practice coding problems on platforms like LeetCode.
2Be prepared to explain your thought process step-by-step.
3Write clean, well-commented code.
4Test your code with edge cases.

Common Reasons for Rejection

Inability to solve basic coding problems.
Poor understanding of time and space complexity.
Lack of clear communication during problem-solving.
2

Behavioral and Cultural Fit

Discuss past experiences, teamwork, and cultural fit.

Behavioral InterviewMedium
45 minSenior Software Engineer or Engineering Manager

This round is designed to understand your behavioral patterns, past experiences, and how you handle various work situations. You'll be asked questions about your projects, teamwork, challenges, and how you align with Notion's culture. The STAR method is highly recommended for structuring your answers.

What Interviewers Look For

Honesty and self-awarenessAbility to learn from mistakesProactiveness and initiativePositive attitude and enthusiasm

Evaluation Criteria

Communication skills
Teamwork and collaboration
Problem-solving approach in past projects
Cultural fit and alignment with Notion's values

Questions Asked

Tell me about a time you faced a significant technical challenge and how you overcame it.

BehavioralProblem Solving

Describe a situation where you had to work with a difficult team member. How did you handle it?

BehavioralTeamwork

What are you passionate about outside of work?

BehavioralCultural Fit

Preparation Tips

1Prepare examples using the STAR method for common behavioral questions.
2Reflect on your past projects and your specific contributions.
3Understand Notion's mission, values, and culture.
4Be ready to discuss your career goals and motivations.

Common Reasons for Rejection

Inability to articulate past experiences clearly.
Lack of self-awareness regarding strengths and weaknesses.
Poor alignment with company values or team dynamics.
3

Hiring Manager and System Design Discussion

Discuss system design, career goals, and overall fit with the hiring manager.

Hiring Manager / System DesignMedium
60 minHiring Manager

In this final round, you'll meet with the hiring manager to discuss your overall fit for the team and the role. This may include a deeper dive into your technical experience, a discussion about system design principles, and an opportunity for you to ask questions about the team, projects, and career growth at Notion. The manager will assess your potential to contribute and grow within the organization.

What Interviewers Look For

Ability to design scalable and robust systemsUnderstanding of trade-offs in design decisionsClear articulation of technical conceptsEnthusiasm for Notion's product and engineering challenges

Evaluation Criteria

Technical depth and breadth
System design thinking
Communication and explanation skills
Alignment with team's technical direction
Motivation and interest in the role

Questions Asked

How would you design a system to handle real-time notifications for a collaborative document editor?

System DesignScalabilityReal-time

What are your expectations for this role and your career at Notion?

BehavioralCareer Goals

Walk me through a project you led or had significant ownership of.

BehavioralProject Ownership

Preparation Tips

1Prepare questions for the hiring manager about the team, projects, and culture.
2Be ready to discuss your career aspirations and how this role fits into them.
3Review system design concepts and be prepared to discuss trade-offs.
4Show genuine interest in Notion's mission and product.

Common Reasons for Rejection

Lack of clarity in explaining technical decisions.
Inability to connect technical solutions to business needs.
Unrealistic expectations about the role or compensation.

Commonly Asked DSA Questions

Frequently asked coding questions at Notion

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Text JustificationHARDTime Based Key-Value StoreMEDIUM