Yelp data engineer interviews cover ETL pipelines, data modelling, SQL optimisation, distributed systems like Spark and Kafka, and warehouse architecture.
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coding
Hard
Verified Question
#1
1. Phrase Tokenizer
Category: String coding problemGiven a string of space-separated words and a dictionary of recognized phrases, split the string into tokens. Phrases in the dictionary represent...Input: String
Output: Computed result
coding
Hard
Verified Question
#2
2. Conference Buddy Pairing
Category: String coding problemYou are organizing a conference and want to pair up attendees as buddies. Each attendee belongs to a department.Input: Array of pairs
Output: Integer
coding
Medium
Verified Question
#3
3. Dependency Chain End
Category: Graph coding problemYou are given a list of task dependency pairs
[a, b] meaning task a is blocked by task b (i.e., a must wait for b). Each task blocks at...Input: Graph (nodes and edges)Output: Computed result
coding
Easy
Verified Question
#4
4. Jaccard Word Similarity
Category: String coding problemGiven two document title strings
doc1 and doc2, compute their word-level Jaccard similarity. Split each title into words by spaces and treat each...Input: StringOutput: Computed result
coding
Medium
Verified Question
#5
5. Overlap String Join
Category: String coding problemGiven two code snippet strings
s1 and s2, merge them by finding the longest suffix of s1 that exactly matches a prefix of s2. Join the two...Input: StringOutput: Printed output
coding
Medium
Verified Question
#6
6. Product Search Engine
Category: Algorithm coding problemDesign a
ProductSearch class for a product catalog search engine. The constructor takes a list of product names. The search(keyword) method...Input: ListOutput: Computed result
coding
Medium
Verified Question
#7
7. Top K Active Customers
Category: String coding problemYou are given a list of support tickets where each ticket is
[agent, customer, issue]. A customer's engagement score is the number of unique agents...Input: ListOutput: Computed result
coding
Medium
Verified Question
#8
8. Top K Keyword Products
Category: Algorithm coding problemYou are given a list of product catalog item names and a search prefix. Return the top
k item names where at least one word in the name starts with...Input: ListOutput: Array
coding
Medium
Verified Question
#9
9. Traffic Spike Counter
Category: Sliding window coding problemYou are given an array of hourly traffic measurements and a spike detection config. Count how many sliding windows of a given size trigger a spike...Input: Array
Output: Computed result
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