xAI Machine Learning Engineer Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Implement a trie-based tokenizer
Design and Implement a Trie-Based Subword Tokenizer for LLM Pretraining Context You are building a subword tokenizer for a large-scale LLM pretraining...
Design O(1) random-sampling set
Design a data structure that supports insert(x), remove(x), and get_random() that returns a uniformly random element among the present items, all in e...
Describe your research and contributions
10–15 Minute Research Project Overview (Technical Screen) Context You are interviewing for a Machine Learning Engineer role. Prepare a concise, techni...
Validate normalized palindromes with variants
Implement a function isNormalizedPalindrome(s) that returns true if s reads the same forward and backward after removing non‑alphanumeric characters a...
Design a house-price prediction workflow
Predicting Home Sale Prices: End-to-End ML Design Context You have historical home-sale records with features such as lot area, year built, number of ...