请问HN：如何设计一个有效的技术电话面试？
我将很快着手构建一个技术电话面试（即在邀请参加虚拟现场面试之前的面试），主要针对全栈和后端产品软件工程师（中级至高级）。我想了解过去哪些主题/概念对面试者有效。
我也对面试者的经历/问题感兴趣，特别是那些让他们感到愉快的部分。
我最初的想法是避免使用类似LeetCode的问题，而是尝试根据我最近遇到的一个困难技术问题来设计一个问题。
例如，加载大量数据到内存中并优化一个慢速函数，作为第二部分，我会设置一些空间限制，这将要求对数据获取的方式进行一些调整。
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I'm going to work on building out a technical phone screen (ie. Interview before you're invited to a virtual on-site) soon targeted at full stack and backend product software engineers(mid-senior level) and wanted to see what topics/concepts have worked for folks in the past.<p>I'm also interested in experiences/questions that interviewees had that were enjoyable.<p>My initial thoughts are that I'm avoiding leetcode type questions and I'm going to try to craft a question based on a hard technical problem I experienced recently.<p>For example, loading up a bunch of data into memory and optimizing a slow function, then as a second part I would create some space constraints which would require some changes to the way the data is fetched.