# Software Engineer
**Role:** Software Engineer · **Level:** L5
**Company:** [smartnews](https://scaleengineer.com/companies/smartnews)
**Difficulty:** Medium to Hard
**Salary:** US$130000 - US$180000
**Experience:** 5 - 10
**Timeline:** ~14 days
The Software Engineer L5 interview process at SmartNews is designed to assess a candidate's technical proficiency, problem-solving abilities, system design skills, and cultural fit. The process typically involves multiple rounds, including technical screenings, coding challenges, system design discussions, and behavioral interviews.
Canonical: https://scaleengineer.com/interviews/smartnews/l5-software-engineer
---
## Overall evaluation

- Technical and Behavioral Assessment
- System Design and Architectural Thinking
- Seniority and Leadership

## Questions asked

- Tell me about a time you had to deal with a difficult stakeholder.
- Design a system to handle real-time analytics for a news website.
- What are the trade-offs between monolithic and microservices architectures?
- How would you ensure the reliability and scalability of a distributed system?
- Describe a situation where you had to learn a new technology quickly.
- Write a function to find the k-th largest element in an unsorted array.
- How do you approach code reviews?
- What are your thoughts on testing strategies for large-scale applications?
- Explain the concept of eventual consistency.
- Tell me about a project you are particularly proud of.

## Preparation tips

### lists

- Review fundamental data structures and algorithms.
- Practice coding problems on platforms like LeetCode, HackerRank, etc.
- Study system design principles and common patterns.
- Prepare to discuss your past projects and technical contributions in detail.
- Research SmartNews' company culture, values, and products.
- Practice behavioral questions using the STAR method (Situation, Task, Action, Result).
- Understand the technologies commonly used at SmartNews (e.g., Go, Python, Java, AWS, Kubernetes).

### studyPlan

- {"title":"Data Structures and Algorithms","longDescription":"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. Solve at least 20-30 medium-difficulty problems on LeetCode.","shortDescription":"Weeks 1-2: Data Structures & Algorithms fundamentals. Practice 20-30 LeetCode medium problems."}
- {"title":"System Design","longDescription":"Weeks 3-4: Dive into system design. Study concepts like scalability, availability, consistency, load balancing, caching, databases (SQL vs. NoSQL), message queues, and microservices. Read system design case studies and practice designing common systems like Twitter's feed or a URL shortener.","shortDescription":"Weeks 3-4: System Design principles. Study scalability, databases, caching. Practice designing common systems."}
- {"title":"Behavioral Preparation","longDescription":"Week 5: Prepare for behavioral questions. Reflect on your past experiences and identify examples that showcase leadership, teamwork, problem-solving, and handling challenges. Use the STAR method to structure your answers. Research SmartNews' values and prepare questions to ask the interviewer.","shortDescription":"Week 5: Behavioral preparation. Use STAR method. Research company values and prepare questions."}
- {"title":"Mock Interviews and Review","longDescription":"Week 6: Mock interviews. Conduct mock interviews with peers or mentors, focusing on both technical and behavioral aspects. Get feedback on your communication, problem-solving approach, and overall presentation. Review any weak areas identified during practice.","shortDescription":"Week 6: Mock interviews. Practice technical and behavioral rounds. Get feedback."}

## Location differences

- {"location":"Tokyo","differences":{"tips":["Familiarize yourself with SmartNews' products and technology stack.","Prepare to discuss your past projects in detail, focusing on technical challenges and solutions.","Practice system design problems relevant to content delivery and personalization.","Be ready to articulate your thought process clearly and concisely.","Research common interview questions for senior software engineering roles."],"interviewFocus":["Deep understanding of distributed systems and scalability.","Experience with large-scale data processing and real-time systems.","Ability to design robust and maintainable software architectures.","Strong problem-solving and analytical skills.","Cultural alignment with SmartNews' values of innovation and collaboration."],"commonQuestions":["How would you design a news feed system for a platform like SmartNews?","Discuss a challenging technical problem you solved recently.","Explain your experience with distributed systems and scalability.","How do you approach debugging complex issues in a production environment?","What are your thoughts on microservices architecture for a content platform?"]}}
- {"location":"San Francisco","differences":{"tips":["Highlight your experience in leading technical initiatives and mentoring.","Prepare examples that demonstrate your problem-solving approach and impact.","Be ready to discuss your understanding of software development best practices.","Showcase your ability to work effectively in a team environment.","Understand the company's mission and how your skills can contribute."],"interviewFocus":["Leadership potential and ability to mentor others.","Experience in designing and implementing scalable backend services.","Proficiency in data structures, algorithms, and software design patterns.","Understanding of CI/CD pipelines and agile development methodologies.","Communication and collaboration skills."],"commonQuestions":["Describe a time you had to mentor junior engineers.","How do you handle disagreements within a team?","What are your strategies for ensuring code quality and test coverage?","Discuss your experience with cloud platforms (AWS, GCP, Azure).","How would you optimize a system for high traffic and low latency?"]}}

## Round 1: Coding Interview
**Type:** Technical Screening (Coding) · **Difficulty:** Medium · **Duration:** 45 min
Assess core programming skills with coding problems.
This initial round focuses on assessing your core programming skills. 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 a solution, implement it efficiently, and explain your thought process. Expect questions on time and space complexity analysis.
**Interviewers look for:** Solid grasp of fundamental programming concepts.; Ability to translate a problem into code.; Clear thinking and logical approach.; Attention to detail in coding.
**Evaluation criteria:** Proficiency in a programming language.; Understanding of basic data structures and algorithms.; Ability to write clean and efficient code.; Problem-solving approach.
**Common rejection reasons:** Lack of fundamental programming skills.; Inability to solve basic algorithmic problems.; Poor coding style or unreadable code.; Not understanding the time and space complexity of their solutions.
## Questions

- Given an array of integers, return indices of the two numbers such that they add up to a specific target.
- Reverse a linked list.
- Find the k-th smallest element in a Binary Search Tree.

## Preparation tips

- Practice coding problems on platforms like LeetCode or HackerRank.
- Review common data structures (arrays, linked lists, trees, hash maps) and algorithms (sorting, searching, graph traversal).
- Be prepared to explain your code and analyze its complexity.
- Practice writing code on a whiteboard or a shared editor.

## Round 2: System Design
**Type:** System Design Interview · **Difficulty:** Hard · **Duration:** 60 min
Assess ability to design scalable, distributed systems.
This round evaluates your ability to design large-scale, distributed systems. You'll be given an open-ended problem (e.g., design a URL shortener, a social media feed, or a notification system) and expected to propose a high-level architecture. The discussion will cover components, data models, APIs, scalability considerations, and potential bottlenecks.
**Interviewers look for:** Ability to design complex systems from scratch.; Knowledge of various architectural patterns and technologies.; Sound reasoning for design decisions.; Consideration of non-functional requirements (performance, security, maintainability).; Ability to handle ambiguity and evolving requirements.
**Evaluation criteria:** System design principles (scalability, availability, reliability).; Understanding of distributed systems.; Trade-off analysis.; Problem decomposition and abstraction.; Communication of design.
**Common rejection reasons:** 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.; Inability to communicate design choices effectively.
## Questions

- Design a system like Twitter's news feed.
- Design a rate limiter.
- Design a distributed cache system.

## Preparation tips

- Study common system design patterns and architectural styles.
- Understand concepts like load balancing, caching, database sharding, message queues, and CAP theorem.
- Practice designing systems relevant to SmartNews' domain (e.g., content delivery, personalization).
- Be prepared to justify your design choices and discuss trade-offs.
- Draw diagrams to illustrate your design.

## Round 3: Behavioral and Managerial Interview
**Type:** Behavioral / Managerial Interview · **Difficulty:** Medium · **Duration:** 45 min
Assess past experiences, cultural fit, and motivation.
This round focuses on your past experiences, motivations, and how you fit within the team and company culture. You'll be asked behavioral questions about your career, teamwork, handling challenges, and leadership. The interviewer will also assess your understanding of SmartNews and your career aspirations.
**Interviewers look for:** Evidence of impact and ownership in previous roles.; Ability to work effectively in a team.; Good communication and interpersonal skills.; Alignment with SmartNews' culture and values.; Motivation and passion for the role and company.
**Evaluation criteria:** Past experience and accomplishments.; Problem-solving approach.; Teamwork and collaboration skills.; Communication and interpersonal skills.; Cultural fit and alignment with company values.
**Common rejection reasons:** Lack of experience in relevant technologies or domains.; Inability to articulate past experiences clearly.; Poor cultural fit or lack of alignment with company values.; Negative attitude or lack of enthusiasm.; Inability to answer behavioral questions effectively.
## Questions

- Tell me about a time you failed and what you learned from it.
- Describe a challenging project you worked on and how you overcame obstacles.
- How do you handle constructive criticism?

## Preparation tips

- Prepare specific examples using the STAR method for common behavioral questions.
- Research SmartNews' mission, values, and recent news.
- Think about why you want to work at SmartNews and for this specific role.
- Prepare thoughtful questions to ask the interviewer about the team, role, and company culture.

## Round 4: Advanced Technical Deep Dive
**Type:** Advanced Technical Interview · **Difficulty:** Medium to Hard · **Duration:** 60 min
Deep dive into specific technical areas and advanced problem-solving.
This round often involves a deeper dive into specific technical areas relevant to the role, which might include advanced algorithms, data structures, operating systems, databases, or networking concepts. It could also involve a more complex coding problem or a discussion about a past project in significant detail. The goal is to assess the breadth and depth of your technical expertise.
**Interviewers look for:** Deep understanding of computer science fundamentals.; Ability to reason about complex technical problems.; Clear and concise communication of technical ideas.; Enthusiasm for technology and continuous learning.; Proactive engagement and asking insightful questions.
**Evaluation criteria:** Depth of technical knowledge.; Problem-solving skills.; Ability to think critically and analytically.; Communication of technical concepts.; Curiosity and learning aptitude.
**Common rejection reasons:** Fundamental misunderstanding of core CS concepts.; Inability to apply learned concepts to new problems.; Poor communication of technical ideas.; Lack of enthusiasm or curiosity.; Not asking clarifying questions.
## Questions

- Explain the difference between processes and threads.
- How does a database index work?
- Describe a scenario where you would choose a NoSQL database over a SQL database.

## Preparation tips

- Review advanced topics in data structures and algorithms.
- Brush up on operating systems concepts (processes, threads, memory management).
- Understand database concepts (indexing, transactions, normalization).
- Be prepared to discuss your favorite programming language in depth.
- Think about how your skills align with the specific needs of the L5 role at SmartNews.