Cisco

Grade 6

Software EngineerSoftware Engineer 2Medium to Hard

This interview process is for a Software Engineer, Grade 6, at Cisco, focusing on assessing technical skills, problem-solving abilities, and cultural fit for a Software Engineer 2 level position.

Rounds

3

Timeline

~14 days

Experience

2 - 5 yrs

Salary Range

US$110000 - US$140000

Total Duration

150 min

Overall Evaluation Criteria

Technical and Behavioral Assessment

Technical Proficiency: Demonstrated understanding of computer science fundamentals, programming languages, and software development best practices.
Problem-Solving Skills: Ability to analyze complex problems, devise effective solutions, and articulate the reasoning behind them.
System Design: Capacity to design scalable, reliable, and maintainable software systems.
Collaboration and Teamwork: Ability to work effectively with others, communicate ideas clearly, and contribute positively to a team environment.
Cultural Fit: Alignment with Cisco's values, including innovation, customer focus, and integrity.

Preparation Tips

1Review fundamental computer science concepts: data structures, algorithms, operating systems, and networking.
2Practice coding problems on platforms like LeetCode, HackerRank, or Coderbyte, focusing on medium to hard difficulty.
3Study system design principles and common architectural patterns.
4Prepare for behavioral questions using the STAR method (Situation, Task, Action, Result).
5Research Cisco's products, services, and company culture.
6Understand the specific technologies and programming languages mentioned in the job description.
7Prepare thoughtful questions to ask the interviewer.

Study Plan

1

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms fundamentals. Practice coding.

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 in your preferred language and analyze their time and space complexity.

2

System Design

Weeks 3-4: System Design principles and practice.

Weeks 3-4: Dive into system design. Study concepts like scalability, availability, consistency, load balancing, caching, databases (SQL vs. NoSQL), and microservices architecture. Work through common system design interview questions.

3

Behavioral Preparation

Week 5: Behavioral questions preparation using STAR method.

Week 5: Prepare for behavioral questions. Reflect on your past experiences and identify examples that showcase your problem-solving, teamwork, leadership, and communication skills. Practice articulating these using the STAR method.

4

Company Research and Question Formulation

Week 6: Cisco research and question preparation.

Week 6: Research Cisco thoroughly. Understand their business, products, recent news, and company values. Prepare questions to ask the interviewer that demonstrate your interest and understanding.

Commonly Asked Questions

Describe a complex technical problem you solved.
How do you approach debugging a large codebase?
Design a URL shortening service.
Explain the difference between a process and a thread.
Tell me about a time you disagreed with a team member and how you resolved it.
What are your thoughts on code reviews?
How would you optimize a slow database query?
Describe your experience with version control systems like Git.
What is polymorphism?
How do you stay updated with new technologies?

Location-Based Differences

Global

Interview Focus

Adaptability to different work environments.Communication style in a global team.Understanding of local market trends and technologies.

Common Questions

Tell me about a challenging project you worked on.

How do you handle conflicting priorities?

Describe a time you had to learn a new technology quickly.

What are your strengths and weaknesses as a software engineer?

Why Cisco?

Tips

Research Cisco's presence and projects in your specific region.
Be prepared to discuss how your skills align with local industry needs.
Highlight any experience working with diverse or international teams.

Technical Focus

Interview Focus

Deep technical expertise in core software engineering principles.Problem-solving and analytical skills.System design and architecture capabilities.Proficiency in specific programming languages and frameworks relevant to Cisco's current projects (e.g., Python, Java, C++, Go).

Common Questions

Describe your experience with cloud-native architectures (e.g., Kubernetes, Docker).

How would you design a scalable microservices system?

What are your thoughts on CI/CD pipelines and automation?

Discuss a time you encountered a significant performance bottleneck and how you resolved it.

Explain the principles of RESTful API design.

Tips

Brush up on data structures, algorithms, and object-oriented design.
Practice system design problems, focusing on scalability, reliability, and maintainability.
Be ready to discuss your experience with cloud platforms (AWS, Azure, GCP) and containerization.
Prepare to explain your thought process clearly and concisely.

Process Timeline

1
Online Coding Assessment45m
2
System Design Challenge60m
3
Behavioral and Managerial Fit45m

Interview Rounds

3-step process with detailed breakdown for each round

1

Online Coding Assessment

Coding challenge focusing on data structures and algorithms.

Technical Screening (Coding)Medium
45 minSoftware Engineer / Technical Screener

This initial round typically involves a coding challenge, often conducted via a shared online editor. The interviewer will assess your ability to translate a problem into working code, focusing on fundamental data structures, algorithms, and problem-solving techniques. Expect questions that test your understanding of time and space complexity.

What Interviewers Look For

Clean, efficient, and correct code.Logical thinking and problem-solving skills.Ability to explain code and approach.Understanding of time and space complexity.

Evaluation Criteria

Coding proficiency.
Understanding of data structures and algorithms.
Problem-solving approach.
Code clarity and efficiency.

Questions Asked

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

ArrayHash TableTwo Pointers

Reverse a linked list.

Linked ListRecursionIteration

Implement a function to check if a binary tree is a Binary Search Tree (BST).

TreeBinary Search TreeRecursion

Preparation Tips

1Practice coding on platforms like LeetCode, HackerRank.
2Focus on common data structures and algorithms.
3Be prepared to explain your code and thought process aloud.

Common Reasons for Rejection

Inability to articulate thought process.
Lack of fundamental programming knowledge.
Poorly optimized or incorrect code.
Difficulty in understanding or applying algorithms.
2

System Design Challenge

Design a scalable software system.

System Design InterviewHard
60 minSenior Software Engineer / Architect

This round focuses on your ability to design complex software systems. You'll be presented with a high-level problem (e.g., design Twitter, design a URL shortener) and expected to break it down, discuss requirements, propose an architecture, and justify your design decisions, considering aspects like scalability, performance, and fault tolerance.

What Interviewers Look For

Structured approach to design problems.Ability to identify requirements and constraints.Sound reasoning for design choices.Consideration of various system components and their interactions.

Evaluation Criteria

System design capabilities.
Understanding of scalability, reliability, and availability.
Trade-off analysis.
Knowledge of distributed systems and databases.

Questions Asked

Design a system like TinyURL.

System DesignScalabilityDatabases

Design a news feed system.

System DesignScalabilityCachingDatabases

How would you design a distributed cache?

System DesignDistributed SystemsCaching

Preparation Tips

1Study common system design patterns.
2Practice designing various popular applications.
3Understand trade-offs between different technologies and approaches.
4Be prepared to draw diagrams and explain your design clearly.

Common Reasons for Rejection

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

Behavioral and Managerial Fit

Assessing behavioral fit and motivation.

Behavioral And Managerial InterviewMedium
45 minHiring Manager / Team Lead

This round assesses your behavioral and cultural fit. The interviewer will ask questions about your past experiences, how you handle challenges, work in teams, and your career aspirations. The goal is to understand how you operate and if you align with Cisco's culture and the team's dynamics.

What Interviewers Look For

Honesty and self-awareness.Ability to learn from past experiences.Positive attitude and enthusiasm.Good communication and interpersonal skills.

Evaluation Criteria

Behavioral competencies.
Teamwork and collaboration skills.
Communication clarity.
Motivation and alignment with Cisco's values.

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 this role at Cisco?

BehavioralMotivationCompany Fit

Preparation Tips

1Prepare examples using the STAR method.
2Be honest and authentic.
3Showcase your passion for technology and problem-solving.
4Ask thoughtful questions about the team and role.

Common Reasons for Rejection

Poor communication skills.
Lack of enthusiasm or interest.
Inability to provide specific examples for behavioral questions.
Mismatch with team culture or company values.

Commonly Asked DSA Questions

Frequently asked coding questions at Cisco

View all
Two SumEASYAdd Two NumbersMEDIUMLongest Substring Without Repeating CharactersMEDIUMLongest Palindromic SubstringMEDIUMZigzag ConversionMEDIUM3SumMEDIUMLetter Combinations of a Phone NumberMEDIUMValid ParenthesesEASYMerge k Sorted ListsHARDRemove Duplicates from Sorted ArrayEASY