Cohesity

Software Engineer

Software EngineerMTS5Hard

The interview process for a Software Engineer (MTS5) at Cohesity is designed to assess a candidate's technical proficiency, problem-solving abilities, system design skills, and cultural fit. The process typically involves multiple rounds, starting with an HR screening, followed by technical interviews focusing on data structures, algorithms, and coding, and culminating in a system design and behavioral interview with senior engineers and hiring managers.

Rounds

4

Timeline

~14 days

Experience

5 - 8 yrs

Salary Range

US$140000 - US$180000

Total Duration

180 min

Overall Evaluation Criteria

Technical Skills

Problem-solving skills
Coding proficiency
Algorithmic thinking
Data structure knowledge
System design capabilities
Scalability and performance considerations
Communication skills
Teamwork and collaboration
Cultural fit
Leadership potential

Communication Skills

Ability to articulate thought process
Clarity of explanation
Active listening
Ability to ask clarifying questions

Behavioral and Cultural Fit

Alignment with Cohesity's values
Collaboration style
Proactiveness
Ownership and accountability

Preparation Tips

1Review fundamental data structures and algorithms (arrays, linked lists, trees, graphs, sorting, searching).
2Practice coding problems on platforms like LeetCode, HackerRank, or similar.
3Study system design principles, including scalability, availability, reliability, and consistency.
4Understand distributed systems concepts (e.g., CAP theorem, consensus algorithms, message queues).
5Prepare for behavioral questions by reflecting on past experiences using the STAR method (Situation, Task, Action, Result).
6Research Cohesity's products, mission, and values to understand how your skills align.
7Practice explaining your thought process clearly and concisely.
8Prepare questions to ask the interviewer about the role, team, and company culture.

Study Plan

1

Data Structures and Algorithms

Weeks 1-2: DSA fundamentals and practice (LeetCode medium).

Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, stacks, queues, trees (binary, BST, AVL), heaps, hash tables, graphs. Practice implementing these and solving problems related to them. Aim for 2-3 LeetCode medium problems per day.

2

System Design

Weeks 3-4: System Design principles and case studies.

Weeks 3-4: Dive into System Design. Study concepts like load balancing, caching, databases (SQL vs NoSQL), message queues, microservices architecture, API design, and distributed system patterns. Work through system design case studies and practice designing common systems like Twitter feed or URL shortener.

3

Behavioral and Mock Interviews

Week 5: Behavioral questions (STAR method) and mock interviews.

Week 5: Behavioral preparation and mock interviews. Reflect on past projects and experiences using the STAR method. Prepare answers for common behavioral questions related to teamwork, leadership, conflict resolution, and problem-solving. Conduct mock interviews to simulate the actual interview environment.

4

Company Research and Final Review

Week 6: Cohesity research and final review.

Week 6: Company-specific research and final review. Understand Cohesity's business, products, and culture. Review key concepts from previous weeks. Prepare insightful questions for the interviewers.

Commonly Asked Questions

Given an array of integers, find the contiguous subarray with the largest sum.
Design a URL shortening service like bit.ly.
How would you design a distributed cache?
Describe a time you disagreed with a teammate and how you resolved it.
What are the trade-offs between monolithic and microservices architectures?
Implement a function to reverse a linked list.
Explain the concept of eventual consistency.
Tell me about a project you are particularly proud of.
How do you handle production issues under pressure?
Design a system to count unique visitors to a website.

Location-Based Differences

USA

Interview Focus

Emphasis on practical experience with cloud technologies (AWS, Azure, GCP).Deeper dive into distributed systems concepts and real-world application.Strong focus on leadership and mentorship potential.

Common Questions

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

How do you approach debugging a complex distributed system?

Describe a time you had to mentor a junior engineer.

Tips

Be prepared to discuss specific projects and their impact.
Highlight experience with CI/CD pipelines and infrastructure as code.
Showcase your ability to lead and influence technical decisions.

India

Interview Focus

Strong emphasis on core computer science fundamentals.Assessment of problem-solving skills in a more theoretical context.Evaluation of adaptability and learning agility.

Common Questions

Explain the trade-offs between different database technologies.

How would you design a scalable API for a microservices architecture?

Describe your experience with agile development methodologies.

Tips

Brush up on fundamental algorithms and data structures.
Practice explaining complex technical concepts clearly.
Be ready to discuss your approach to learning new technologies.

Process Timeline

0
HR Screening30m
1
Coding and Algorithms45m
2
System Design60m
3
Behavioral and Cultural Fit45m

Interview Rounds

4-step process with detailed breakdown for each round

0

HR Screening

Initial screening to assess fit and discuss logistics.

HR ScreeningEasy
30 minHR Recruiter

This initial screening call with HR is to understand your background, career goals, and motivation for applying to Cohesity. They will also provide an overview of the role, the interview process, and answer any initial questions you might have. This is also a chance to discuss salary expectations and logistics.

What Interviewers Look For

Basic understanding of the role and Cohesity.Clear communication regarding expectations.Enthusiasm for the opportunity.Logistical feasibility (start date, location, etc.).

Evaluation Criteria

Candidate's understanding of the role and company
Alignment of expectations
Candidate's interest and enthusiasm
Logistical fit

Questions Asked

Why are you interested in Cohesity?

MotivationCompany Research

What are your salary expectations?

CompensationLogistics

Preparation Tips

1Be prepared to talk about your resume and career aspirations.
2Have a clear understanding of why you are interested in Cohesity.
3Prepare questions about the role, team, and company culture.
4Be ready to discuss your salary expectations.

Common Reasons for Rejection

Mismatch in expectations regarding role or compensation.
Lack of clarity on career goals.
Not asking relevant questions about the team or role.
1

Coding and Algorithms

Assess core coding skills with data structures and algorithms problems.

Technical Interview - CodingMedium
45 minSoftware Engineer

This round focuses on assessing your core programming skills. You will be given one or two coding problems that require knowledge of data structures and algorithms. The interviewer will evaluate your ability to understand the problem, devise an efficient solution, write clean and correct code, and explain your approach. Expect to write code in a shared editor or on a whiteboard.

What Interviewers Look For

Strong grasp of fundamental algorithms and data structures.Ability to translate a problem into code.Logical thinking and systematic approach to problem-solving.Clear communication of thought process.

Evaluation Criteria

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

Questions Asked

Given a binary tree, determine if it is a valid binary search tree.

Data StructuresAlgorithmsTreesRecursion

Find the kth smallest element in a sorted matrix.

AlgorithmsArraysBinary SearchHeap

Preparation Tips

1Practice coding problems regularly.
2Focus on understanding the time and space complexity of your solutions.
3Be prepared to discuss edge cases and test your code.
4Practice explaining your thought process out loud.

Common Reasons for Rejection

Poor communication of thought process.
Inability to write clean, working code.
Fundamental misunderstanding of data structures or algorithms.
Not asking clarifying questions.
2

System Design

Assess ability to design scalable and reliable software systems.

System Design InterviewHard
60 minSenior Software Engineer / Architect

This round evaluates your ability to design and architect software systems. You will be presented with a high-level problem (e.g., design Twitter, design a ride-sharing service) and asked to propose a solution. The focus is on scalability, reliability, performance, and the trade-offs involved in different design choices. You'll need to discuss various components, data models, APIs, and potential bottlenecks.

What Interviewers Look For

Ability to design complex, scalable, and reliable systems.Understanding of distributed systems concepts.Proficiency in evaluating and choosing appropriate technologies.Ability to articulate design decisions and trade-offs.

Evaluation Criteria

System design approach
Scalability considerations
Reliability and availability
Trade-off analysis
Understanding of various system components (databases, caches, load balancers, etc.)
Ability to handle constraints and requirements

Questions Asked

Design a system like Instagram.

System DesignScalabilityDatabasesAPIs

Design a rate limiter.

System DesignDistributed SystemsAlgorithms

Preparation Tips

1Study common system design patterns and architectures.
2Understand concepts like CAP theorem, consistency models, and fault tolerance.
3Practice designing various types of systems.
4Be prepared to justify your design choices and discuss alternatives.

Common Reasons for Rejection

Lack of understanding of distributed systems principles.
Inability to design scalable and reliable systems.
Poor trade-off analysis.
Not considering edge cases or failure scenarios.
3

Behavioral and Cultural Fit

Assess behavioral competencies and cultural fit.

Behavioral InterviewMedium
45 minHiring Manager / Senior Team Member

This round focuses on your behavioral aspects and how you fit within the team and company culture. You'll be asked questions about your past experiences, how you handle challenges, work with others, and your career aspirations. The interviewer will use the STAR method (Situation, Task, Action, Result) to probe your responses and understand your capabilities beyond technical skills.

What Interviewers Look For

Alignment with Cohesity's values and culture.Evidence of teamwork, collaboration, and leadership.Ability to learn from past experiences.Strong communication and interpersonal skills.Enthusiasm for the role and company.

Evaluation Criteria

Behavioral competencies (teamwork, leadership, problem-solving)
Cultural fit with Cohesity
Motivation and passion for the role
Past experiences and accomplishments
Self-awareness

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

Preparation Tips

1Prepare examples using the STAR method for common behavioral questions.
2Reflect on your strengths, weaknesses, and career goals.
3Research Cohesity's values and culture.
4Be genuine and enthusiastic in your responses.

Common Reasons for Rejection

Lack of alignment with company values.
Poor collaboration or teamwork skills.
Inability to articulate past experiences effectively.
Negative attitude or lack of enthusiasm.

Commonly Asked DSA Questions

Frequently asked coding questions at Cohesity

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