# Software Engineer
**Role:** Software Engineer · **Level:** 13
**Company:** [Huawei](https://scaleengineer.com/companies/huawei)
**Difficulty:** Medium to Hard
**Salary:** US$110000 - US$150000
**Experience:** 5 - 8
**Timeline:** ~14 days
This interview process is for a Software Engineer position at Huawei, specifically for Level 13. It is designed to assess a candidate's technical proficiency, problem-solving skills, and cultural fit within the company.
Canonical: https://scaleengineer.com/interviews/huawei/13-software-engineer
---
## Overall evaluation

- Technical Skills
- Behavioral and Cultural Fit

## Questions asked

- Describe a time you had to debug a complex issue. What was your process?
- Design a URL shortening service.
- Explain the difference between processes and threads.
- How would you design a system to handle millions of concurrent users?
- Tell me about a time you disagreed with a team member. How did you resolve it?
- What are your strengths and weaknesses as a software engineer?
- How do you stay updated with new technologies?
- Write a function to find the kth largest element in an unsorted array.
- Discuss the trade-offs between SQL and NoSQL databases.
- How would you optimize a slow-performing API?

## Preparation tips

### lists

- Thoroughly review fundamental computer science concepts: data structures, algorithms, operating systems, databases, and networking.
- Practice coding problems on platforms like LeetCode, HackerRank, or AlgoExpert, focusing on medium to hard difficulty.
- Study system design principles, including scalability, reliability, and distributed systems.
- Prepare for behavioral questions by reflecting on past experiences using the STAR method (Situation, Task, Action, Result).
- Research Huawei's products, services, and recent technological advancements.
- Understand Huawei's company culture, values, and mission.
- Prepare questions to ask the interviewer about the role, team, and company.

### 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 in your preferred language and analyze their time and space complexity. Aim for 5-10 problems per day.","shortDescription":"Weeks 1-2: Data Structures & Algorithms fundamentals. Practice 5-10 problems daily."}
- {"title":"System Design","longDescription":"Weeks 3-4: Dive into system design. Study concepts like load balancing, caching, database design (SQL vs. NoSQL), microservices architecture, and API design. Review common system design interview questions and practice designing scalable systems.","shortDescription":"Weeks 3-4: System Design principles. Study scalability, caching, databases, microservices."}
- {"title":"Behavioral Preparation","longDescription":"Week 5: Prepare for behavioral and situational questions. Reflect on your past projects and experiences, identifying examples that demonstrate leadership, teamwork, problem-solving, and resilience. Use the STAR method to structure your answers.","shortDescription":"Week 5: Behavioral preparation. Use STAR method for past experiences."}
- {"title":"Company Research and Question Preparation","longDescription":"Week 6: Research Huawei extensively. Understand their business areas, key products (e.g., 5G, cloud computing, AI), recent news, and company culture. Prepare insightful questions to ask the interviewers.","shortDescription":"Week 6: Huawei research. Focus on products, news, and culture. Prepare questions."}

## Location differences

- {"location":"China","differences":{"tips":["Research Huawei's recent projects and innovations, especially those originating from China.","Be prepared to discuss your experience working with Chinese colleagues or in a Chinese business context.","Familiarize yourself with common Chinese business etiquette."],"interviewFocus":["Adaptability to Huawei's specific development methodologies.","Understanding of the Chinese tech market and its trends.","Ability to collaborate effectively with cross-cultural teams."],"commonQuestions":["Discuss a challenging project you worked on in China.","How do you handle tight deadlines in a fast-paced environment like Shenzhen?","What are your thoughts on Huawei's contribution to the global tech landscape?"]}}
- {"location":"Europe","differences":{"tips":["Highlight projects where you've worked with international teams or on global products.","Be ready to discuss your understanding of European market dynamics if applicable.","Showcase your ability to adapt to different work cultures and communication styles."],"interviewFocus":["Experience with international collaboration and remote work.","Understanding of global software development standards and practices.","Alignment with Huawei's global business strategy and values."],"commonQuestions":["Describe your experience with distributed systems and cloud computing, relevant to Huawei's global infrastructure.","How would you contribute to a team that is geographically dispersed?","What are your expectations regarding work-life balance in a European context?"]}}
- {"location":"North America","differences":{"tips":["Showcase any contributions to relevant open-source communities.","Be prepared to discuss your experience with agile frameworks like Scrum or Kanban.","Demonstrate an understanding of the competitive landscape in North America."],"interviewFocus":["Proficiency in widely adopted open-source technologies.","Experience with agile and lean development practices.","Awareness of industry trends and challenges in North America."],"commonQuestions":["How have you contributed to open-source projects relevant to Huawei's ecosystem?","Discuss your experience with agile methodologies in a North American setting.","What are your thoughts on the current geopolitical landscape and its impact on the tech industry?"]}}

## Round 1: Data Structures and Algorithms
**Type:** Technical Interview (Coding) · **Difficulty:** Medium · **Duration:** 45 min
Assess core coding skills with data structures and algorithms problems.
This round focuses on your core programming skills. You will be asked to solve one or two coding problems, typically involving data structures and algorithms. The interviewer will assess your ability to write clean, efficient, and correct code, as well as your problem-solving methodology and communication skills. Be prepared to explain your thought process as you code.
**Interviewers look for:** Strong grasp of fundamental algorithms and data structures.; Ability to translate a problem into clean, efficient code.; Logical thinking and systematic approach to problem-solving.; Communication of thought process during coding.
**Evaluation criteria:** Correctness of the solution.; Efficiency of the solution (time and space complexity).; Clarity and readability of the code.; Problem-solving approach and ability to handle edge cases.
**Common rejection reasons:** Inability to articulate thought process clearly.; Lack of fundamental understanding of data structures and algorithms.; Poor coding practices (e.g., inefficient solutions, unreadable code).
## Questions

- Given a binary tree, find its inorder traversal.
- Implement a function to reverse a linked list.
- Find the two numbers in an array that add up to a specific target.

## Preparation tips

- Practice coding problems on platforms like LeetCode, focusing on common patterns.
- Write code on a whiteboard or in a simple text editor to simulate the interview environment.
- Verbally explain your approach before you start coding.
- Test your code with various inputs, including edge cases.

## Round 2: System Design and Architecture
**Type:** System Design Interview · **Difficulty:** Hard · **Duration:** 60 min
Assess ability to design scalable and robust software systems.
This round evaluates your ability to design and architect software systems. You'll be presented with a high-level problem (e.g., design Twitter's feed, design a URL shortener) and expected to propose a scalable and robust solution. Focus on identifying core components, data models, APIs, and addressing potential bottlenecks and failure points.
**Interviewers look for:** Experience in designing large-scale, distributed systems.; Knowledge of databases, caching, load balancing, and message queues.; Ability to think critically about system trade-offs.; Clear communication of design choices and rationale.
**Evaluation criteria:** Understanding of system design principles (scalability, availability, reliability).; Ability to design complex systems from scratch.; Knowledge of various architectural patterns and technologies.; Trade-off analysis and justification of design decisions.; Handling of constraints and requirements.
**Common rejection reasons:** Inability to design scalable and reliable systems.; Lack of understanding of distributed system concepts.; Poor trade-off analysis and justification of design choices.
## Questions

- Design a distributed cache system.
- Design an API rate limiter.
- Design a system to count unique visitors to a website.

## Preparation tips

- Study common system design patterns and architectures.
- Practice designing systems like social media feeds, e-commerce platforms, or real-time services.
- Understand the trade-offs between different technologies (e.g., SQL vs. NoSQL, REST vs. gRPC).
- Be prepared to discuss scalability, availability, and performance considerations.

## Round 3: Behavioral and Managerial Fit
**Type:** Behavioral Interview · **Difficulty:** Medium · **Duration:** 30 min
Assess behavioral competencies, teamwork, and cultural fit.
This round focuses on your behavioral aspects and cultural fit. You'll be asked questions about your past experiences, how you handle specific situations, your strengths and weaknesses, and your career goals. Use the STAR method to provide concrete examples and demonstrate your suitability for the role and Huawei's culture.
**Interviewers look for:** Evidence of collaboration and teamwork.; Ability to handle challenging situations and learn from mistakes.; Clear articulation of career aspirations and alignment with the role.; Positive attitude and enthusiasm for Huawei.
**Evaluation criteria:** Behavioral competencies (teamwork, leadership, problem-solving).; Communication and interpersonal skills.; Motivation and career goals.; Cultural fit with Huawei.
**Common rejection reasons:** Lack of self-awareness regarding strengths and weaknesses.; Inability to provide specific examples to support claims.; Poor communication or interpersonal skills.; Lack of enthusiasm or alignment with company values.
## Questions

- Tell me about a time you faced a significant challenge at work and how you overcame it.
- Describe a situation where you had to work with a difficult colleague. How did you manage the relationship?
- What are your long-term career goals, and how does this role at Huawei fit into them?

## Preparation tips

- Prepare examples for common behavioral questions (teamwork, conflict resolution, failure, success).
- Be honest and self-aware in your responses.
- Show enthusiasm for the role and the company.
- Ask thoughtful questions about the team and work environment.