Pure Storage

Software Engineer

Software EngineerMTS2Medium to Hard

This interview process is for a Software Engineer position at Pure Storage, specifically for the MTS2 level. It is designed to assess a candidate's technical skills, problem-solving abilities, and cultural fit within the company.

Rounds

3

Timeline

~14 days

Experience

2 - 5 yrs

Salary Range

US$110000 - US$150000

Total Duration

150 min

Overall Evaluation Criteria

Technical Skills

Problem-solving skills
Data structures and algorithms knowledge
Coding proficiency
System design capabilities
Communication skills
Teamwork and collaboration
Cultural fit

Communication

Ability to articulate thought process
Clarity of explanations
Active listening

Cultural Fit

Alignment with Pure Storage values
Attitude and enthusiasm
Willingness to learn

Preparation Tips

1Review fundamental data structures and algorithms.
2Practice coding problems on platforms like LeetCode, HackerRank, or AlgoExpert.
3Study system design principles and common architectural patterns.
4Prepare for behavioral questions using the STAR method (Situation, Task, Action, Result).
5Research Pure Storage's products, mission, and values.
6Understand the specific technologies and domains relevant to the role.

Study Plan

1

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms fundamentals. Practice implementations and complexity analysis.

Weeks 1-2: Focus on core data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal). Practice implementing these from scratch and analyze their time and space complexity.

2

System Design

Weeks 3-4: System Design principles. Study scalability, databases, caching, load balancing.

Weeks 3-4: Dive into system design concepts. Study topics like scalability, availability, reliability, databases (SQL vs. NoSQL), caching, load balancing, and microservices. Work through common system design case studies.

3

Behavioral Preparation

Week 5: Behavioral Interview preparation. Use STAR method for past experiences.

Week 5: Prepare for behavioral interviews. Reflect on past projects and experiences, identifying examples that demonstrate leadership, teamwork, problem-solving, and conflict resolution. Practice articulating these using the STAR method.

4

Mock Interviews and Review

Week 6: Mock interviews and final review. Practice weak areas.

Week 6: Mock interviews and final review. Conduct mock interviews with peers or mentors to simulate the actual interview environment. Review any weak areas identified during practice and refine your answers.

Commonly Asked Questions

Given an array of integers, find the contiguous subarray with the largest sum.
Design a URL shortening service like bit.ly.
Tell me about a time you disagreed with a technical decision and how you handled it.
How would you optimize a slow database query?
Explain the concept of eventual consistency.
Describe a challenging bug you encountered and how you debugged it.

Location-Based Differences

USA

Interview Focus

Emphasis on practical application of data structures and algorithms.Understanding of distributed systems concepts.Cultural fit and collaboration skills.

Common Questions

Discuss a challenging technical problem you solved at your previous role.

How do you approach debugging a complex system?

Describe a time you had to work with a difficult team member.

Tips

Be prepared to whiteboard solutions for coding problems.
Have specific examples ready to illustrate your experience.
Research Pure Storage's values and culture.

India

Interview Focus

Strong focus on system design and scalability.Proficiency in specific programming languages relevant to the team (e.g., C++, Python).Problem-solving approach and analytical thinking.

Common Questions

Explain the trade-offs between different database technologies.

How would you design a system for real-time data processing?

Tell me about a project where you had to adapt to changing requirements.

Tips

Practice system design questions, considering various components and their interactions.
Be ready to discuss your contributions to past projects in detail.
Showcase your ability to think critically and articulate your thought process.

Process Timeline

1
Data Structures and Algorithms45m
2
System Design and Architecture60m
3
Behavioral and Managerial Fit45m

Interview Rounds

3-step process with detailed breakdown for each round

1

Data Structures and Algorithms

Coding challenge focusing on data structures and algorithms.

Technical Interview - CodingMedium
45 minSoftware Engineer

This round focuses on assessing your core programming skills. You will be given one or two coding problems to solve, typically involving data structures and algorithms. The interviewer will evaluate your ability to write clean, efficient, and correct code, as well as your approach to problem-solving and debugging.

What Interviewers Look For

Ability to translate a problem into code.Understanding of algorithmic complexity.Clean and maintainable code.Logical thinking and debugging skills.

Evaluation Criteria

Correctness of the solution
Efficiency of the solution (time and space complexity)
Code quality and readability
Problem-solving approach

Questions Asked

Reverse a linked list.

Data StructuresLinked ListsAlgorithms

Find the kth smallest element in a binary search tree.

Data StructuresTreesBinary Search TreesAlgorithms

Implement a function to check if a string is a palindrome.

StringsAlgorithms

Preparation Tips

1Practice coding problems on platforms like LeetCode.
2Be comfortable with common data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming).
3Practice explaining your thought process out loud as you code.
4Write test cases for your code.

Common Reasons for Rejection

Inability to solve coding problems within the given time.
Poor understanding of fundamental data structures and algorithms.
Lack of clarity in explaining the thought process.
2

System Design and Architecture

System design challenge focusing on scalability and architecture.

Technical Interview - System DesignHard
60 minSenior Software Engineer / Architect

This round evaluates your ability to design and architect scalable and robust systems. You will be presented with a high-level problem (e.g., design Twitter's feed, design a URL shortener) and expected to discuss various aspects of the system, including data storage, APIs, scalability, and potential bottlenecks.

What Interviewers Look For

Ability to design complex systems from scratch.Knowledge of distributed systems principles.Understanding of various system components and their interactions.Ability to justify design choices and discuss trade-offs.

Evaluation Criteria

Scalability of the design
Reliability and fault tolerance
Trade-off analysis
Understanding of system components
Clarity of explanation

Questions Asked

Design a system to count unique visitors to a website.

System DesignScalabilityDistributed Systems

Design a rate limiter.

System DesignDistributed SystemsAlgorithms

Design a distributed cache.

System DesignDistributed SystemsCaching

Preparation Tips

1Study system design concepts like load balancing, caching, databases, and message queues.
2Practice designing common systems like social media feeds, e-commerce platforms, or real-time services.
3Be prepared to discuss trade-offs between different design choices.
4Draw diagrams to illustrate your design.

Common Reasons for Rejection

Inability to design scalable and reliable systems.
Lack of understanding of distributed systems concepts.
Poor trade-off analysis in design decisions.
3

Behavioral and Managerial Fit

Behavioral questions to assess cultural fit and past experiences.

Behavioral And Managerial InterviewMedium
45 minHiring Manager / Team Lead

This round focuses on your behavioral and situational responses. The interviewer will ask questions about your past experiences, how you handle specific situations, and your motivations. This helps assess your cultural fit, teamwork abilities, and leadership potential.

What Interviewers Look For

How you handle challenges and conflicts.Your ability to work in a team.Your motivation and passion for technology.Alignment with Pure Storage's values.

Evaluation Criteria

Communication skills
Teamwork and collaboration
Problem-solving approach
Cultural alignment
Past experiences and achievements

Questions Asked

Tell me about a time you failed and what you learned from it.

BehavioralLearningResilience

Describe a situation where you had to work with a difficult colleague.

BehavioralTeamworkConflict Resolution

Why are you interested in working at Pure Storage?

BehavioralMotivationCompany Fit

Preparation Tips

1Prepare answers to common behavioral questions using the STAR method.
2Think about your strengths and weaknesses.
3Be ready to discuss your career goals and why you are interested in Pure Storage.
4Ask thoughtful questions about the team and the role.

Common Reasons for Rejection

Lack of clear communication.
Inability to provide specific examples for behavioral questions.
Poor cultural fit or lack of enthusiasm.

Commonly Asked DSA Questions

Frequently asked coding questions at Pure Storage

View all
Longest Palindromic SubstringMEDIUMLongest Increasing SubsequenceMEDIUMInsert Delete GetRandom O(1)MEDIUMValid SquareMEDIUMPalindromic SubstringsMEDIUMDesign SkiplistHARDMaximum Repeating SubstringEASY