# Senior engineer A
**Role:** Software Engineer · **Level:** 17
**Company:** [Huawei](https://scaleengineer.com/companies/huawei)
**Difficulty:** Hard
**Salary:** US$130000 - US$180000
**Experience:** 5 - 10
**Timeline:** ~14 days
This interview process is for a Senior Software Engineer (Level 17) at Huawei, focusing on assessing technical expertise, problem-solving skills, system design capabilities, and cultural fit. The process is designed to identify candidates who can lead complex projects, mentor junior engineers, and contribute significantly to Huawei's innovative environment.
Canonical: https://scaleengineer.com/interviews/huawei/17-software-engineer
---
## Overall evaluation

- Technical Proficiency
- Problem Solving & System Design
- Behavioral & Cultural Fit

## Questions asked

- Describe a complex technical problem you solved and your approach.
- How would you design a system to handle millions of concurrent users?
- What are the trade-offs between different caching strategies?
- Tell me about a time you disagreed with a technical decision and how you handled it.
- How do you ensure the quality and reliability of the software you deliver?
- Explain the concept of eventual consistency.
- What are your thoughts on microservices vs. monolithic architectures?
- How do you stay updated with the latest technologies?
- Describe a situation where you had to mentor a junior engineer.
- What are your strengths and weaknesses as a software engineer?

## Preparation tips

### lists

- Review fundamental computer science concepts: data structures, algorithms, operating systems, databases, and networking.
- Deepen your understanding of distributed systems, microservices architecture, and cloud computing principles.
- Practice coding problems on platforms like LeetCode, HackerRank, focusing on medium to hard difficulty.
- Prepare for system design questions by studying common patterns and trade-offs.
- Reflect on your past projects and prepare to discuss your contributions, challenges, and learnings using the STAR method (Situation, Task, Action, Result).
- Research Huawei's products, services, and recent technological advancements.
- Understand Huawei's company culture and values.
- Prepare questions to ask the interviewer about the role, team, and company.

### studyPlan

- {"title":"Foundational Computer Science","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. Cover fundamental operating system concepts like processes, threads, memory management, and concurrency.","shortDescription":"Weeks 1-2: Data Structures & Algorithms, OS Fundamentals."}
- {"title":"Advanced Technical Concepts","longDescription":"Weeks 3-4: Dive into distributed systems concepts such as consensus algorithms (Paxos, Raft), distributed transactions, CAP theorem, consistency models, and fault tolerance. Study microservices architecture, API design (REST, gRPC), and message queues (Kafka, RabbitMQ). Begin exploring cloud computing platforms (AWS, Azure, GCP, Huawei Cloud) and their core services (compute, storage, databases, networking).","shortDescription":"Weeks 3-4: Distributed Systems, Microservices, Cloud Computing."}
- {"title":"System Design & Behavioral Skills","longDescription":"Weeks 5-6: Focus on system design. Study common design patterns for scalability, reliability, and performance. Practice designing systems like URL shorteners, social media feeds, or distributed caches. Understand database design principles, caching strategies, load balancing, and monitoring. Prepare for behavioral questions by recalling specific examples of teamwork, problem-solving, leadership, and conflict resolution.","shortDescription":"Weeks 5-6: System Design, Behavioral Preparation."}
- {"title":"Practice & Refinement","longDescription":"Week 7: Mock interviews with peers or mentors. Focus on refining your communication, problem-solving approach, and ability to articulate your thoughts clearly. Review any areas where you feel less confident. Prepare specific questions to ask the interviewers.","shortDescription":"Week 7: Mock Interviews & Final Review."}

## Location differences

- {"location":"Shanghai, China","differences":{"tips":["Research Huawei's presence and key projects in the specific region.","Be prepared to discuss your experience with technologies commonly used by Huawei's clients in that area.","Highlight any experience working with international teams or in cross-cultural environments.","Understand the local market's technological trends and challenges."],"interviewFocus":["Deep dive into specific cloud platforms (e.g., Huawei Cloud, AWS, Azure) relevant to the local market.","Understanding of local regulatory compliance and data privacy laws.","Experience with technologies prevalent in the specific region.","Ability to adapt to local team dynamics and communication styles."],"commonQuestions":["How do you handle a situation where a critical system component fails in production?","Describe a time you had to influence a team to adopt a new technology or approach.","What are your strategies for ensuring code quality and maintainability in large projects?","Discuss your experience with cloud-native architectures and microservices.","How do you approach performance optimization for distributed systems?"]}}
- {"location":"Munich, Germany","differences":{"tips":["Thoroughly review Huawei's global technology roadmap and recent innovations.","Be prepared to discuss your contributions to open-source projects or significant technical publications.","Practice explaining complex technical solutions in a structured manner.","Showcase your ability to think critically and propose innovative solutions."],"interviewFocus":["Emphasis on distributed systems and large-scale data processing.","Knowledge of cutting-edge technologies and research areas.","Problem-solving skills in complex, ambiguous situations.","Ability to articulate technical concepts clearly and concisely."],"commonQuestions":["How do you design a scalable and fault-tolerant API gateway?","Tell me about a challenging debugging scenario you encountered and how you resolved it.","What are the trade-offs between different database technologies (SQL vs. NoSQL) for a high-traffic application?","How do you ensure security in a distributed system?","Describe your experience with CI/CD pipelines and automated testing."]}}
- {"location":"Bengaluru, India","differences":{"tips":["Familiarize yourself with Huawei's product portfolio and the specific business unit you are applying to.","Prepare examples that demonstrate your problem-solving skills and impact on product development.","Highlight your ability to work effectively in a team and adapt to project changes.","Be ready to discuss your career aspirations and how they align with Huawei's growth."],"interviewFocus":["Focus on practical application of software engineering principles.","Understanding of agile methodologies and team collaboration.","Experience with specific product development cycles.","Ability to demonstrate impact through past projects."],"commonQuestions":["How would you design a real-time recommendation engine?","Describe a time you had to deal with conflicting requirements from stakeholders.","What are the key principles of clean architecture?","How do you approach performance testing and profiling?","Discuss your experience with containerization technologies like Docker and Kubernetes."]}}

## Round 1: Online Coding Assessment / Phone Screen
**Type:** Technical Screening · **Difficulty:** Medium · **Duration:** 45 min
Initial coding assessment focusing on fundamentals.
This initial round typically involves a technical recruiter or a junior engineer. It focuses on assessing your foundational knowledge in computer science, including data structures and algorithms. You'll likely be asked to solve one or two coding problems, often on a shared online editor. The interviewer will evaluate your coding style, efficiency, and your ability to explain your approach.
**Interviewers look for:** Fundamental programming skills.; Logical thinking.; Ability to translate requirements into code.; Basic problem-solving abilities.
**Evaluation criteria:** Basic understanding of data structures and algorithms.; Coding proficiency in at least one language.; Ability to solve straightforward algorithmic problems.; Communication of thought process.
**Common rejection reasons:** Inability to articulate thought process clearly.; Lack of fundamental knowledge in core CS concepts.; Poor problem-solving approach.; Inability to write clean, efficient code.; Not asking clarifying questions.
## Questions

- Reverse a linked list.
- Find the two numbers in an array that add up to a specific target.
- Implement a function to check if a binary tree is balanced.

## Preparation tips

- Practice coding problems on platforms like LeetCode (Easy/Medium).
- Review fundamental data structures and algorithms.
- Be prepared to explain your code and its time/space complexity.
- Practice thinking out loud while solving problems.

## Round 2: System Design
**Type:** System Design Interview · **Difficulty:** Hard · **Duration:** 60 min
Design a scalable and reliable software system.
This round focuses on your ability to design complex software systems. You'll be presented with a high-level problem (e.g., design Twitter's feed, a URL shortener, or a distributed cache) and expected to propose a scalable, reliable, and maintainable solution. The interviewer will probe your design choices, discuss trade-offs, and assess your understanding of various architectural components.
**Interviewers look for:** Experience in designing large-scale systems.; Deep understanding of system components and their interactions.; Ability to handle ambiguity and complex requirements.; Pragmatic approach to problem-solving.; Knowledge of databases, caching, load balancing, and messaging systems.
**Evaluation criteria:** Ability to design complex, scalable, and reliable systems.; Understanding of distributed systems principles.; Knowledge of various architectural patterns and technologies.; Ability to analyze trade-offs and make informed decisions.; Clear communication of design rationale.
**Common rejection reasons:** Inability to design scalable and robust systems.; Poor understanding of trade-offs in system design.; Not considering edge cases or failure scenarios.; Lack of clarity in explaining design choices.; Over-engineering or under-engineering solutions.
## Questions

- Design a system like TinyURL.
- Design a news feed system for a social media platform.
- How would you design a rate limiter for an API?

## Preparation tips

- Study common system design patterns and architectures.
- Practice designing systems like those found on platforms like 'Grokking the System Design Interview'.
- Be prepared to discuss databases (SQL vs. NoSQL), caching, load balancing, message queues, and CDNs.
- Think about scalability, availability, latency, and consistency.
- Clearly articulate your design choices and justify them.

## Round 3: Managerial Round
**Type:** Behavioral & Managerial Interview · **Difficulty:** Medium · **Duration:** 45 min
Assessing behavioral competencies, leadership, and cultural fit.
This round, often conducted by the hiring manager, focuses on your behavioral and cultural fit. You'll be asked questions about your past experiences, how you handle specific situations (e.g., conflicts, failures, successes), your leadership style, and your career goals. The aim is to understand how you work within a team and if you align with Huawei's culture and values.
**Interviewers look for:** Evidence of leadership and mentorship.; Strong communication and interpersonal skills.; Adaptability and resilience.; Proactive approach and ownership.; Alignment with Huawei's values.
**Evaluation criteria:** Behavioral competencies: teamwork, communication, problem-solving, leadership.; Cultural fit with Huawei.; Motivation and career aspirations.; Ability to handle challenging situations.; Past experiences and their impact.
**Common rejection reasons:** Lack of leadership or initiative.; Poor collaboration or teamwork skills.; Inability to handle conflict constructively.; Not demonstrating alignment with company values.; Lack of self-awareness or reflection on past experiences.
## Questions

- Tell me about a time you had to lead a project. What were the challenges and how did you overcome them?
- Describe a situation where you had a conflict with a colleague or manager. How did you resolve it?
- How do you handle constructive criticism?
- Why are you interested in working at Huawei?

## Preparation tips

- Prepare examples using the STAR method (Situation, Task, Action, Result) for common behavioral questions.
- Reflect on your strengths, weaknesses, leadership experiences, and how you handle challenges.
- Research Huawei's company culture, mission, and values.
- Be ready to discuss your career goals and why you are interested in this role at Huawei.
- Ask thoughtful questions about the team, projects, and work environment.

## Round 4: Senior Technical / Architectural Review
**Type:** Advanced Technical Interview · **Difficulty:** Hard · **Duration:** 60 min
In-depth technical discussion with senior leadership.
This is typically the final technical round, often with a senior leader or principal engineer. It delves into highly specialized technical areas relevant to the role and Huawei's strategic focus. Expect in-depth discussions on architecture, scalability, performance optimization, and potentially cutting-edge technologies. The goal is to assess your technical depth, strategic thinking, and potential to influence the technical direction of the company.
**Interviewers look for:** Proven track record of technical leadership.; Deep understanding of system architecture and design principles.; Ability to innovate and drive technical direction.; Mentorship capabilities.; Experience with large-scale, mission-critical systems.
**Evaluation criteria:** Deep technical expertise in relevant domains (e.g., distributed systems, cloud, AI/ML, specific programming languages).; Architectural vision and strategic thinking.; Ability to mentor and guide technical teams.; Problem-solving skills for highly complex and ambiguous issues.; Contribution to technical strategy and innovation.
**Common rejection reasons:** Lack of deep technical expertise in specialized areas.; Inability to discuss advanced technical concepts.; Not demonstrating strategic thinking or architectural vision.; Poor communication of complex technical ideas.; Not aligning with the senior-level expectations.
## Questions

- Discuss the challenges of building and maintaining a globally distributed database.
- How would you design a system for real-time fraud detection at scale?
- What are the key considerations for migrating a large monolithic application to microservices?
- Describe your experience with performance optimization at the system level.

## Preparation tips

- Revisit advanced topics in your area of expertise (e.g., distributed consensus, advanced database concepts, performance tuning).
- Be prepared to discuss your most challenging technical projects in detail.
- Think about the future of technology in your domain and how Huawei can contribute.
- Demonstrate strategic thinking and a broad understanding of the technology landscape.
- Prepare to discuss your vision for technical excellence and team growth.