# Member of Technical Staff 1
**Role:** Software Engineer · **Level:** MTS 1
**Company:** [eBay](https://scaleengineer.com/companies/ebay)
**Difficulty:** Medium
**Salary:** US$100000 - US$130000
**Experience:** 1 - 3
**Timeline:** ~14 days
The interview process for a Member of Technical Staff 1 (MTS 1) Software Engineer at eBay is designed to assess a candidate's foundational technical skills, problem-solving abilities, and cultural fit within the company. The process typically involves multiple rounds, starting with an initial screening and progressing through technical interviews, a system design round, and a final behavioral/managerial interview.
Canonical: https://scaleengineer.com/interviews/ebay/mts-1-software-engineer
---
## Overall evaluation

- Technical Skills
- Communication
- Cultural Fit & Motivation

## Questions asked

- Given an array of integers, find the contiguous subarray with the largest sum.
- Design a system to count unique visitors to a website.
- Explain the concept of polymorphism with a code example.
- Tell me about a time you disagreed with a team member. How did you handle it?
- How would you optimize a slow database query?
- What are the differences between TCP and UDP?
- Describe a situation where you had to learn a new technology quickly.
- Design a rate limiter for an API.
- What is a deadlock and how can it be prevented?
- Tell me about a project you are particularly proud of.

## Preparation tips

### lists

- Review fundamental data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal).
- Practice coding problems on platforms like LeetCode, HackerRank, or similar.
- Understand core computer science concepts such as operating systems, databases, and networking.
- Prepare for system design questions by studying common design patterns and scalability concepts.
- Reflect on your past projects and experiences to prepare for behavioral questions.
- Research eBay's products, services, and company culture.
- Prepare questions to ask the interviewer about the role, team, and company.

### studyPlan

- {"title":"Data Structures and Algorithms","longDescription":"Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, stacks, queues, trees (binary trees, BSTs, AVL trees), graphs, hash tables. Implement common algorithms like sorting (quicksort, mergesort), searching (binary search), and graph traversal (BFS, DFS). Practice problems related to these topics.","shortDescription":"Weeks 1-2: Data Structures & Algorithms (Arrays, Lists, Trees, Graphs, HashMaps, Sorting, Searching, BFS, DFS)."}
- {"title":"System Design","longDescription":"Weeks 3-4: Dive into System Design. Understand concepts like scalability, availability, reliability, load balancing, caching, databases (SQL vs. NoSQL), message queues, and API design. Study common system design problems like designing a URL shortener, a Twitter feed, or a distributed cache.","shortDescription":"Weeks 3-4: System Design (Scalability, Load Balancing, Caching, Databases, APIs)."}
- {"title":"Behavioral and Managerial Preparation","longDescription":"Week 5: Prepare for Behavioral and Managerial Rounds. Reflect on your past projects, challenges, successes, and failures. Use the STAR method (Situation, Task, Action, Result) to structure your answers. Prepare examples demonstrating teamwork, problem-solving, leadership, and conflict resolution.","shortDescription":"Week 5: Behavioral & Managerial (STAR method, Teamwork, Problem-solving, Leadership)."}
- {"title":"Mock Interviews and Final Review","longDescription":"Week 6: Mock Interviews and Review. Conduct mock interviews to simulate the actual interview environment. Practice explaining your thought process clearly and concisely. Review any weak areas identified during practice.","shortDescription":"Week 6: Mock Interviews & Review."}

## Location differences

- {"location":"San Jose, USA","differences":{"tips":["Be prepared to whiteboard solutions.","Clearly articulate your thought process.","Ask clarifying questions to understand the problem constraints."],"interviewFocus":["Emphasis on core data structures and algorithms.","Problem-solving approach and clarity of thought.","Understanding of object-oriented programming principles."],"commonQuestions":["How would you design a URL shortener?","Explain the difference between a process and a thread.","Describe a challenging technical problem you solved and how you approached it."]}}
- {"location":"Bengaluru, India","differences":{"tips":["Focus on identifying components, data flow, and APIs.","Consider scalability, reliability, and performance.","Demonstrate your ability to work effectively in a team."],"interviewFocus":["System design and scalability.","Distributed systems concepts.","Collaboration and communication skills."],"commonQuestions":["How would you design a system to handle real-time notifications?","Discuss the trade-offs between SQL and NoSQL databases.","Tell me about a time you had to deal with a difficult stakeholder."]}}

## Round 1: Coding Round 1
**Type:** Technical Interview (Coding) · **Difficulty:** Medium · **Duration:** 45 min
Assess fundamental coding skills with data structures and algorithms.
This initial technical round focuses on assessing your fundamental 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 write clean, efficient, and correct code, as well as your approach to problem-solving and your understanding of time and space complexity.
**Interviewers look for:** Strong grasp of data structures and algorithms.; Ability to translate a problem into code.; Clear communication of thought process.; Consideration of edge cases and constraints.
**Evaluation criteria:** Correctness of the solution; Efficiency of the solution (time and space complexity); Code quality and readability; Problem-solving approach; Ability to explain the solution
**Common rejection reasons:** Inability to solve basic coding problems.; Poor understanding of fundamental data structures and algorithms.; Unclear or incorrect approach to problem-solving.; Lack of attention to edge cases and constraints.
## Questions

- Reverse a linked list.
- Find the kth smallest element in a binary search tree.
- Implement a function to check if a string is a palindrome.

## Preparation tips

- Practice coding problems on platforms like LeetCode (Easy/Medium difficulty).
- Focus on understanding the underlying data structures and algorithms.
- Be prepared to explain your thought process step-by-step.
- Write clean, well-commented code.
- Consider edge cases and test your solution thoroughly.

## Round 2: System Design Round
**Type:** System Design Interview · **Difficulty:** Medium · **Duration:** 60 min
Assess ability to design scalable and robust software systems.
This round focuses on your ability to design scalable and robust software systems. You will be presented with a high-level problem and asked to design a system to solve it. The interviewer will assess your understanding of distributed systems, databases, caching, load balancing, and other architectural concepts. You'll need to discuss trade-offs and justify your design choices.
**Interviewers look for:** Ability to design complex systems.; Understanding of distributed systems principles.; Pragmatic approach to problem-solving.; Ability to justify design decisions.
**Evaluation criteria:** System design approach; Scalability and performance considerations; Reliability and fault tolerance; Choice of technologies and trade-offs; Clarity of communication
**Common rejection reasons:** Inability to design scalable and reliable systems.; Lack of understanding of distributed systems concepts.; Poor consideration of trade-offs.; Failure to communicate design choices effectively.
## Questions

- Design a system like Twitter's news feed.
- Design a URL shortening service.
- Design a distributed cache.

## Preparation tips

- Study common system design patterns and principles.
- Practice designing systems like URL shorteners, social media feeds, or e-commerce platforms.
- Focus on scalability, availability, and performance.
- Be prepared to discuss trade-offs between different design choices.
- Clearly articulate your design and justify your decisions.

## Round 3: Behavioral and Managerial Round
**Type:** Behavioral / Managerial Interview · **Difficulty:** Medium · **Duration:** 45 min
Assess behavioral competencies, cultural fit, and motivation.
This round typically involves the hiring manager or a senior team member. It focuses on your behavioral aspects, past experiences, and how you would fit into the team and company culture. You'll be asked questions about your strengths, weaknesses, how you handle conflict, your career aspirations, and why you're interested in eBay. Prepare to provide specific examples using the STAR method.
**Interviewers look for:** Evidence of collaboration and teamwork.; Ability to handle challenges and setbacks.; Passion for technology and eBay's mission.; Alignment with eBay's core values.; Good communication and interpersonal skills.
**Evaluation criteria:** Behavioral competencies (teamwork, problem-solving, leadership); Communication skills; Motivation and alignment with company values; Career goals and aspirations; Cultural fit
**Common rejection reasons:** Poor communication skills.; Lack of enthusiasm or interest in the role/company.; Inability to provide specific examples for behavioral questions.; Poor cultural fit.; Unrealistic salary expectations.
## 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 handle it?
- Why are you interested in working at eBay?
- What are your strengths and weaknesses?

## Preparation tips

- Prepare examples using the STAR method for common behavioral questions.
- Research eBay's mission, values, and culture.
- Be ready to discuss your career goals and how this role aligns with them.
- Show enthusiasm and genuine interest in the position and company.
- Prepare thoughtful questions to ask the interviewer.