@itsHugo 实习的话可能要了解每年的校招宣传之类的. 我刚去看了下, 现在实习生没有在招.

@wandehul 是的, 谢谢.

@yisheyuanzhang 英语能沟通, 至少面试没问题吧.

@YadongZhang

这是详细 JD:
if you love to build the most innovative selling experience on one of the world largest eCommerce platforms, please join the eBay Store team in eBay China Center of Excellence (CCOE) at Shanghai. This new team will

• build tools to help our sellers to construct customized storefronts on eBay.
• build store optimization capability to allow our sellers to showcase their brands and products, and to create shopper loyalty by offering best shopping experience.
• build store marketing capability to enable our sellers to increase their sales by driving traffic to their stores on eBay or outside eBay.

We are looking for highly motivated and talented software engineers who have experiences or potentials in full technical stacks. As a valued member of the team, you will learn the most advanced technology in web application development, big data, machine learning, and client-side applications.
People in the team are friendly and extremely bright. Our team strives for a culture of professionalism, innovation, career growth, and fun. We will provide you with the best opportunity to work in a challenging, highly visible, and fast paced environment.
Job Responsibilities
• Active contributor on design, development, test of complex, multi-tier software applications.
• Work with other engineers, managers, product managers to develop innovative solutions that meet needs with respect to functionality, performance, scalability, and reliability while meeting realistic implementation schedules and adhering to development goals and principles.
• Estimate engineering efforts, plan implementations, and rollout system changes.
• Develop industry and product technical expertise.
• Proactively participate in maintaining team standards and best practices
• Understand the broader business context around their area and provide intelligent solution.

Job Requirements
• BS, MS, or PhD in Computer Science or related technical discipline (or equivalent).
• 3+ years’ work experience in software development area with at least 2+ years’ experience in Java programming and web development
• Deep understanding of computer science fundamentals, data structures, and algorithms.
• Excellent problem-solving skills, good at triaging and resolving critical tech issues without supervision.
• Expertise required in object-oriented design methodology and application development in Java and JavaEE, including Spring, Html, JavaScript, etc.
• Expertise required in large scale web application development and skills in React and NodeJS will be a big plus.

github 代码都删了????

@grapefruitbaby 一般在中国这边工作一些时间, 得到认可, 美国那边缺人, 就有可能有机会 relocate .

@YiweiHangzhi 英语看部门和岗位, 有的要求沟通很好, 有的要求能听懂读懂.

@someoneshally MTS 虽然没人说过一定要几年, 我觉得 5 年差不多吧. 不过有些写的是 MST, 也许低一点职位也有.

@Ryanel 在国内, 技术都是在上海, 美国在硅谷, 西雅图, Austin. 在以色列, 英国也有职位.

@AngryPanda 有 go, C++, 不过大部分是 Java. 大部分电商都是 Java.

@liuhuan475 说的对. TLAB 是在堆上年轻代的, PLAB 是堆上老年代的. 都不属于线程栈的空间. 有空写一个 TLAB/PLAB card marking 的文章.

@guo4224 一般的 Linux. 没看出来哪里牛逼...

@beichenhpy 是的, 我为了省事, 直接复制过来了. 直接读微信原文排版会好点. 下次写个提示.

@hustmisa 是正常且符合逻辑的优化. 只是很少看到这种文档介绍这种知识, 导致第一次见到这种情形, 不知道栈去哪里了.

@justlikemaki 哈哈, 那是不是过段时间又重现了. xx 同事在去掉日志又可以修复一次...

@timi 一段时间内这个方法或者 for 循环体内的方法不再过热. 它是计算一个滑动时间窗口内被执行的次数. 如果次数降下来 因为存编译代码的空间有限, 这段代码可能会被逆优化.

当然, 如果重启 server, 自然又恢复到开始状态了.

@cheng6563 是的. 如果第一个异常太久了或者日志被 rotate 了 第一个日志就比较难找.

@tedzhou1221 那基本就是这个问题. 所以要找到最初报这个空指针的地方. 或者使用 BTrace 检测 new NPEException 的点, 打印 stack.

@sadfQED2 JIT 编译时会有各种优化. 大多数不会产生这种异常.