# Software Engineer
**Role:** Software Engineer · **Level:** L6
**Company:** [Verkada](https://scaleengineer.com/companies/verkada)
**Difficulty:** Hard
**Salary:** US$170000 - US$220000
**Experience:** 5 - 10
**Timeline:** ~14 days
Verkada's Software Engineer L6 interview process is designed to assess a candidate's technical expertise, problem-solving abilities, system design skills, and cultural fit. The process typically involves multiple rounds, including technical interviews, a system design interview, and a behavioral interview, culminating in a hiring manager discussion.
Canonical: https://scaleengineer.com/interviews/verkada/l6-software-engineer
---
## Overall evaluation

- Technical Proficiency
- System Design
- Behavioral and Cultural Fit
- Communication and Presentation

## Questions asked

- Given a large dataset of user activity logs, design a system to detect fraudulent behavior in real-time.
- How would you design a URL shortening service like bit.ly?
- Explain the concept of eventual consistency and provide an example where it's applicable.
- Describe a time you disagreed with a technical decision made by your team. How did you handle it?
- Implement a function to find the k-th largest element in an unsorted array.
- How would you design a notification system for a social media platform?
- Tell me about a project where you had to optimize performance. What steps did you take?
- What are the trade-offs between monolithic and microservices architectures?
- How do you ensure the security of a distributed system?
- Describe your experience with cloud infrastructure and deployment pipelines.

## Preparation tips

### lists

- Review fundamental data structures and algorithms.
- Practice coding problems on platforms like LeetCode, focusing on medium to hard difficulty.
- Study system design concepts, including scalability, databases, caching, and distributed systems.
- Prepare examples for common behavioral questions using the STAR method (Situation, Task, Action, Result).
- Research Verkada's products, mission, and values to tailor your responses.
- Understand the specific technologies and programming languages commonly used at Verkada (e.g., Go, Python, C++, distributed systems, cloud technologies).

### studyPlan

- {"title":"Data Structures and Algorithms","longDescription":"Weeks 1-2: Focus on core data structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and algorithms (Sorting, Searching, Dynamic Programming, Graph Traversal). Practice implementing these from scratch and analyze their time and space complexity. Aim for 2-3 coding problems per day.","shortDescription":"Weeks 1-2: Data Structures & Algorithms fundamentals. Practice 2-3 problems/day."}
- {"title":"System Design","longDescription":"Weeks 3-4: Dive into system design principles. Study topics like load balancing, caching strategies, database design (SQL vs. NoSQL), message queues, microservices architecture, and API design. Work through common system design interview questions and practice drawing diagrams.","shortDescription":"Weeks 3-4: System Design principles. Study scalability, databases, caching, microservices."}
- {"title":"Behavioral Preparation","longDescription":"Week 5: Prepare for behavioral interviews. Identify key experiences related to teamwork, leadership, conflict resolution, and handling failure. Use the STAR method to structure your answers. Research Verkada's company culture and values.","shortDescription":"Week 5: Behavioral preparation. Use STAR method. Research Verkada's culture."}
- {"title":"Mock Interviews and Review","longDescription":"Week 6: Mock interviews and review. Conduct mock interviews with peers or mentors to simulate the actual interview environment. Review weak areas identified during practice and mock interviews. Refine your communication and explanation skills.","shortDescription":"Week 6: Mock interviews and review weak areas. Refine communication."}

## Location differences

- {"location":"San Mateo, CA","differences":{"tips":["Be prepared to discuss specific cloud platforms (AWS, GCP, Azure) and their services.","Highlight experience with containerization (Docker, Kubernetes) and orchestration.","Showcase leadership and mentorship experiences with concrete examples.","Research Verkada's product offerings and identify potential technical challenges."],"interviewFocus":["Emphasis on practical application of distributed systems knowledge.","Strong focus on cloud-native architectures and microservices.","Assessment of leadership potential and ability to influence technical direction.","Understanding of scalability challenges specific to high-growth tech environments."],"commonQuestions":["Discuss a challenging technical problem you solved at scale.","How do you approach designing a distributed system for real-time data processing?","Describe a time you had to mentor junior engineers. What was your approach?","What are your thoughts on the latest trends in cloud computing and their potential impact on our industry?"]}}
- {"location":"Austin, TX","differences":{"tips":["Be ready to discuss C/C++ and low-level programming concepts.","Prepare examples of optimizing code for performance and resource constraints.","Demonstrate experience with debugging complex systems, including hardware interactions.","Familiarize yourself with Verkada's hardware products and their underlying technologies."],"interviewFocus":["Focus on real-time systems and performance optimization.","Assessment of experience with hardware-software interaction and embedded systems.","Evaluation of ability to work with and improve existing, complex codebases.","Understanding of manufacturing and hardware development cycles."],"commonQuestions":["How would you design a scalable API for a video surveillance system?","Describe your experience with embedded systems and hardware integration.","Tell me about a time you had to deal with legacy code. How did you manage it?","What are your preferred methods for ensuring code quality and maintainability in a large codebase?"]}}

## Round 1: Technical Coding Round 1
**Type:** Data Structures and Algorithms Interview · **Difficulty:** Hard · **Duration:** 60 min
Solve 1-2 coding problems focusing on data structures and algorithms. Evaluate code quality and problem-solving approach.
This round focuses on assessing your core computer science fundamentals. You will be asked to solve one or two coding problems, typically involving data structures and algorithms. The interviewer will evaluate your ability to understand the problem, devise an efficient solution, write clean code, and explain your thought process. Expect follow-up questions about optimizing your solution or handling different scenarios.
**Interviewers look for:** Strong grasp of algorithms and data structures.; Ability to translate requirements into working code.; Clean and well-structured code.; Logical thinking and systematic approach to problem-solving.
**Evaluation criteria:** Correctness of the solution; Efficiency (time and space complexity); Code readability and maintainability; Problem-solving approach; Ability to handle follow-up questions and optimizations
**Common rejection reasons:** Inability to articulate thought process clearly.; Lack of fundamental data structures and algorithms knowledge.; Poorly written or inefficient code.; Failure to consider edge cases or constraints.
## Questions

- Given a binary tree, find the lowest common ancestor of two given nodes in the tree.
- Implement a function to merge k sorted linked lists.
- Find the length of the longest substring without repeating characters.

## Preparation tips

- Practice coding problems on platforms like LeetCode (focus on Medium/Hard).
- Understand time and space complexity analysis (Big O notation).
- Be prepared to explain your code line by line.
- Practice thinking out loud and communicating your approach.

## Round 2: System Design Round
**Type:** System Design Interview · **Difficulty:** Hard · **Duration:** 60 min
Design a scalable, distributed system. Focus on requirements, architecture, components, and trade-offs.
This round assesses your ability to design large-scale, distributed systems. You'll be given an open-ended problem (e.g., design Twitter's feed, design a rate limiter) and expected to break it down, identify requirements, propose a high-level design, and then dive deeper into specific components. Focus on scalability, reliability, and trade-offs.
**Interviewers look for:** Ability to design complex systems from scratch.; Deep understanding of distributed systems principles.; Pragmatic approach to problem-solving and trade-offs.; Clear communication of design choices.
**Evaluation criteria:** Scalability of the design; Reliability and fault tolerance; Clarity and completeness of the design; Understanding of trade-offs; Knowledge of relevant technologies (databases, caching, messaging)
**Common rejection reasons:** Inability to design a scalable and robust system.; Lack of understanding of distributed system concepts.; Poor trade-off analysis.; Failure to consider failure scenarios and error handling.
## Questions

- Design a system to handle real-time analytics for a website with millions of users.
- Design a distributed key-value store.
- Design a system for uploading and processing large video files.

## Preparation tips

- Study common system design patterns and architectures.
- Practice designing popular systems (e.g., social media feeds, URL shorteners, chat systems).
- Understand concepts like load balancing, caching, databases (SQL vs. NoSQL), message queues, and CDNs.
- Be prepared to draw diagrams and explain your design choices.

## Round 3: Behavioral and Cultural Fit Round
**Type:** Behavioral Interview · **Difficulty:** Medium · **Duration:** 45 min
Discuss past experiences, teamwork, leadership, and cultural fit using the STAR method.
This round focuses on your past experiences, behavioral competencies, and cultural fit. You'll be asked questions about teamwork, leadership, conflict resolution, handling failure, and your motivations. Use the STAR method (Situation, Task, Action, Result) to provide specific, concise examples from your career.
**Interviewers look for:** Evidence of collaboration and teamwork.; Ability to handle challenging situations and learn from mistakes.; Proactiveness and ownership.; Alignment with Verkada's mission and values.
**Evaluation criteria:** Communication skills; Teamwork and collaboration; Problem-solving approach in past experiences; Leadership and initiative; Cultural fit and alignment with Verkada's values
**Common rejection reasons:** Lack of self-awareness.; Poor communication or interpersonal skills.; Inability to provide specific examples.; Mismatch with company values or culture.
## Questions

- Tell me about a time you had to work with a difficult teammate. How did you handle it?
- Describe a project where you took initiative or demonstrated leadership.
- Tell me about a time you failed. What did you learn from it?
- Why are you interested in Verkada?

## Preparation tips

- Prepare stories using the STAR method for common behavioral questions.
- Reflect on your strengths, weaknesses, and career goals.
- Research Verkada's company culture, mission, and values.
- Be ready to discuss why you are interested in Verkada and this specific role.

## Round 4: Hiring Manager Round
**Type:** Hiring Manager Discussion · **Difficulty:** Medium · **Duration:** 30 min
Final discussion with the Hiring Manager to assess overall fit, career goals, and answer questions.
This is typically the final round where the Hiring Manager assesses your overall fit for the team and role. They will discuss your career aspirations, ensure alignment on expectations, and answer any remaining questions you may have about the team, projects, or company culture. This is also an opportunity for you to evaluate if Verkada is the right place for you.
**Interviewers look for:** Enthusiasm for the role and company.; Clear understanding of the position's expectations.; Alignment of career goals with opportunities at Verkada.; Good rapport and communication.
**Evaluation criteria:** Alignment on role and responsibilities; Candidate's career aspirations; Mutual interest in the position; Overall fit within the team and company
**Common rejection reasons:** Lack of alignment on role expectations.; Unrealistic salary expectations.; Poor communication regarding career goals.; Not a good fit for the team's dynamics.
## Questions

- What are your long-term career goals?
- What are you looking for in your next role?
- Do you have any questions for me about the team or the role?

## Preparation tips

- Prepare thoughtful questions about the role, team, and company.
- Reiterate your interest and enthusiasm for the position.
- Be prepared to discuss your career goals and how this role fits into them.
- Ensure you have a clear understanding of the role's responsibilities.