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Top 34
Prep plan
Updated weekly · Last refresh Aug 30

Hiya Software Engineer Interview Questions

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

34questions
~6htotal time
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1
CodingStart here. 13 questions · ~132 min
DFS on Binary TreeEasy
Practice

Traverse a PingOne policy tree in preorder using recursive depth-first search.

dfsHiya
Check Palindrome StringEasy
Practice

Use a two-pointer string scan to determine whether a string reads the same forward and backward.

RecursionStringsData StructuresHiya
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2
Execution4 questions · ~41 min
API Design for Mobile AppsMedium

Tests your ability to design secure, performant, and developer-friendly APIs for mobile clients.

Trade-offsSuccess CriteriaRisk AssessmentHiya
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3
Security & Infrastructure3 questions · ~31 min
Distributed Data ConsistencyHard

Tests your ability to reason about consistency models, replication, and failure modes in distributed systems.

InfrastructureNetworkingOperating SystemsHiya
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4
Behavioral & Leadership10 questions · ~102 min
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5
More topics4 questions · ~41 min
Design a URL Shortening RecommenderHard

Design a URL shortener that ranks and recommends short links while handling abuse, freshness, and monitoring at scale.

Feature StoreModel ServingHiya
SQL vs NoSQL for Go-to-Market DataEasy

Explain how SQL and NoSQL differ in schema, consistency, scaling, and Demandbase-style analytics use cases.

JoinsData WranglingHiya
RESTful API Design PrinciplesMedium

Tests your ability to design clear, consistent APIs with correct resource and HTTP semantics.

InfrastructureToolsHiya
Architecting Call BlockingHard

Tests your ability to design a production-grade call blocking system with low latency and high reliability.

ML RankingFeature StoreRecommendation SystemsHiya

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
Monthly Campaign Performance SummaryEasy
Practice
Practice drill

Aggregate January 2024 campaign data by channel using GROUP BY, filtering, and ordering by total clicks.

JoinsData WranglingAggregationsDNVEversanaDiscord
The finish line: interview-readyComplete all 34 questions plus 3 hands-on drills to finish this plan.