Staff Software Engineer - Systems and Infrastructure

LinkedIn

Given a string s, find the length of the longest substring without repeating characters. For example: Input: s = abcabcbb Output: 3 Explanation: The answer is abc, with the length of 3. Input: s = bbbbb Output: 1 Explanation: The answer is b, with the length of 1. Input: s = pwwkew Output: 3 Explanation: The answer is wke, with the length of 3. Notice that the answer must be a substring; pwke is a subsequence and not a substring. Input: s = Output: 0 Implement an algorithm in your chosen language to efficiently determine the length of the longest substring without repeating characters in the given input string. Consider the time and space complexity of your solution. Can you optimize your approach to achieve the best possible performance, especially for very large input strings? What are the edge cases to consider, such as empty strings or strings with only one character?

LinkedIn

Let's design the LinkedIn feed. Consider the user experience, key features, scalability, and personalization aspects. For instance, how would you prioritize content from connections versus suggested content? How would you handle different content types like text, images, videos, and articles? How do you design a system to ensure that the feed remains responsive even with millions of active users? How would you personalize the feed to show users content they are most likely interested in, and what data would you use to achieve this personalization? Finally, how would you prevent the spread of misinformation or harmful content within the feed?

LinkedIn

Tell me about a time you faced a difficult conflict at work and how you handled it. To give me a clearer picture, please include the following details: Describe the situation: What was the specific conflict or difficulty you encountered? What were the core issues at stake? Identify the parties involved: Who were the individuals or groups involved in the conflict? What were their perspectives and motivations? Explain your role: What was your role in the situation? Were you a direct participant, a mediator, or an observer? Outline the actions you took: What specific steps did you take to address the conflict? Did you try to negotiate, compromise, or escalate the issue? Explain the outcome: What was the final result of your actions? Was the conflict resolved successfully, or were there any lingering issues? Reflect on the lessons learned: What did you learn from this experience? Would you have handled anything differently in retrospect?