xAI 面试题、OA 真题与面经

1. 01LC 380 Insert Delete GetRandom O(1)×1 · 2025-091 次面经报告，最近 2025-09中等
   来源 1 篇面经

   • Design O(1) random-sampling set2025-09

• xAI Software Engineer interview: language-model take-home

  Take-home → 技术面轮次：Take-home、技术面

  Software Engineer

• xAI Software Engineer Interview Experience: a rushed rocket simulation

  未通过技术面轮次：技术面

  Software Engineer

• xAI Software Engineer interview: power-systems questions and an onsite presentation

  技术面 → 其他轮次：技术面、其他

  Software Engineer

• xAI Software Engineer interview: final-stage silence

  无回音其他轮次：其他

  Software Engineer

• xAI Machine Learning Engineer Interview Experience — Passed a 15-Minute Vibe-Check Call

  流程中技术面轮次：技术面面试于 2026-02

  Machine Learning Engineer

• xAI Software Engineer Interview Experience — HC Canceled the Night Before, Rerouted to a Rushed 15-Minute Coding Screen

  技术面轮次：技术面面试于 2025-12

  Software Engineer

1. 编程Per-Key Fixed-Window Cost Limiter with ALLOW and RESET Commands中等
2. 编程Compute dasher pay from order events中等
3. 面试Answer technical-challenge and motivation questions困难
4. 编程Implement two string utility functions中等
5. 编程Implement an in-memory database with TTL and backup简单
6. 编程Design O(1) random-sampling set中等

• 本季实习岗位（2027 年入职）10 月 16 日首次出现（首次同步时已在招，实际开放可能更早） · 现在 4 个在招
• 各公司什么时候开放：招聘日历

• Spring 2027 Business Operations Internship/Co-op

  实习其他2027 春季 · Co-opPalo Alto, CA; New York, NY发布于 2026-10-02

  加入投递追踪：Spring 2027 Business Operations Internship/Co-op隐藏：Spring 2027 Business Operations Internship/Co-op
• Summer 2027 Business Operations Internship/Co-op

  实习其他2027 夏季 · Co-opPalo Alto, CA; New York, NY发布于 2026-10-02

  加入投递追踪：Summer 2027 Business Operations Internship/Co-op隐藏：Summer 2027 Business Operations Internship/Co-op
• Spring 2027 Software Engineering Internship/Co-op

  实习软件开发2027 春季 · Co-opPalo Alto, CA发布于 2026-10-02

  加入投递追踪：Spring 2027 Software Engineering Internship/Co-op隐藏：Spring 2027 Software Engineering Internship/Co-op
• Summer 2027 Software Engineering Internship/Co-op

  实习软件开发2027 夏季 · Co-opPalo Alto, CA发布于 2026-10-02

  加入投递追踪：Summer 2027 Software Engineering Internship/Co-op隐藏：Summer 2027 Software Engineering Internship/Co-op

来自公司在 Greenhouse、Lever、Ashby 上的公开招聘页，每天同步一次，只列标题里写明实习、新毕业生或入门级的岗位。薪资只来自 Lever 和 Ashby 招聘页上公司自己公开的范围，Greenhouse 的列表没有薪资；方向和学期按标题判断。身份要求（不担保签证、需公民或绿卡、需安全许可）由规则从岗位描述里识别，可能漏判，以原帖为准；公司担保过 H-1B 不代表这个岗位担保。投递前请以公司页面上的岗位要求为准。

这是按雇主税号统计的申请数，不是人数，也不代表某个岗位一定提供担保。新雇佣含首次申请、新的兼职雇佣和换雇主，续签含延期、同雇主变更和修改。 数据来源：USCIS H-1B Employer Data Hub (FY2021–FY2025)，更新于 2026-10-17。