Top 25
Prep plan
Updated weekly · Last refresh Aug 30

Actian AI Engineer Interview Questions

The questions to prepare for a Actian AI Engineer interview. Questions from real interview reports rank first. Updated weekly.

25questions
~5htotal time
Track your progressSign up free to work through all 25 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 7 questions · ~76 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsActian
Implement Decision Tree FunctionHard
Practice

Implement a binary CART decision tree that selects numerical splits using Gini impurity.

RecursionTreesDecision TreesActian
More Coding questions with a free account
2
Generative AI & LLMs6 questions · ~65 min
Reduce Hallucinations in LLM AnswersEasy

Explain LLM hallucination and give three practical ways to reduce it using grounding, prompting, and evaluation.

HallucinationPrompt EngineeringRAGActian
Explain Vector Search in RAGMedium

Design a grounded document Q&A system and explain how vector search improves retrieval quality, latency, and hallucination control in RAG.

Vector SearchPrompt EngineeringRAGActian
More Generative AI & LLMs questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
System Design4 questions · ~44 min
Design an LLM Serving PlatformHard

Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.

Cold StartFeature StoreModel ServingActian
Design a Personalized Product RecommenderHard

Design an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.

Feature StoreFeature DriftModel ServingActian
More System Design questions with a free account
4
Behavioral & Leadership4 questions · ~44 min
More Behavioral & Leadership questions with a free account
5
More topics4 questions · ~44 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffActian
Debugging Underperforming ModelsMedium

Tests your ability to diagnose model failures using data, metrics, and systematic experimentation.

PrecisionAccuracyRecallActian
More questions with a free account
The finish line: interview-readyComplete all 25 questions to finish this plan.