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Updated weekly · Last refresh Aug 30

Resideo Software Engineer Interview Questions

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

34questions
~6htotal time
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1
CodingStart here. 9 questions · ~90 min
Design an LRU CacheEasy
Practice

Implement an LRU cache in O(1) average time using a hash table and doubly linked list.

Hash TablesQueueLinked ListsResideo
Find Two Sum IndicesEasy
Practice
Recently asked

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

Hash TablesArraysSortingResideo
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2
Behavioral & Leadership18 questions · ~181 min
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3
More topics7 questions · ~70 min
Running Totals SQL QueryMedium
Practice
Recently asked

Aggregate Resideo Smart Home purchases by date and calculate each customer's cumulative spending with a window function.

Window FunctionsDate FunctionsRunning TotalsResideo
Low-Latency Security NotificationsHard
Recently asked

Tests system design for event-driven messaging and latency-sensitive delivery at Resideo.

InfrastructureStream ProcessinglatencyResideo
Smart Home Energy Recommendation SystemHard
Recently asked

Tests system design across data, modeling, and delivery for Resideo smart living experiences.

Feature StoreModel ServingRecommendation SystemsResideo
End-to-End Product IntegrationMedium

Evaluates your ability to execute end-to-end delivery for product integrations at Resideo.

processResideo
Optimize Complex SQL JoinsHard
Recently asked

Tests performance tuning skills using query plans, indexing, and rewriting strategies for Resideo databases.

JoinsperformanceAggregationsResideo
API Rate Limiter for IoT TelemetryHard
Recently asked

Tests ability to design resilient request controls for high-frequency telemetry ingestion at Resideo.

InfrastructureAPIsQualityResideo
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 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
Analyzing Operations Bottlenecks with SQLHard
Practice
Practice drill

Use multi-level CTEs, joins, and LAG to identify Samsung regional inventory shortages and late deliveries.

JoinsperformanceAggregationsSamsung ElectronicsApeel Sciences
The finish line: interview-readyComplete all 34 questions plus 2 hands-on drills to finish this plan.