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Updated weekly · Last refresh Aug 30

Loft Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 9 questions · ~76 min
Shortest Path in Grid LotMedium
Practice

Use BFS on a grid to find the shortest path from start to destination while avoiding blocked cells.

QueueSearchingGraphsLoft
Notification Service Class DiagramMedium

Tests your ability to model event-driven notification systems with clear responsibilities.

abstractionoopFrameworksLoft
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2
System Design9 questions · ~76 min
Real-Time Property Search ArchitectureHard

Tests system design for low-latency search with high throughput and frequent updates.

RetrievalsearchLoft
Architectural Approach for Proposed SystemHard

Evaluates your ability to translate requirements into an architecture and development plan.

Loft
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3
Behavioral & Leadership28 questions · ~236 min
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4
More topics4 questions · ~34 min
Zero-Downtime Microservices MigrationHard

Tests migration planning, risk management, and strategies for safe incremental rollout.

Rollback PlanTrade-offsRoadmappingLoft
Distributed Ledger With Eventual ConsistencyHard

Tests distributed systems design for financial workflows and consistency guarantees.

Dependenciesdata integrityData ModelingLoft
Speed Up a SQL QueryMedium

Evaluates your ability to optimize SQL queries using indexing, query plans, and data modeling techniques.

Performance Tuningquery optimizationLoft
Optimize Loft App PerformanceMedium

Assesses your approach to measuring and diagnosing performance issues in a real estate platform like Loft.

performance evaluationLoft

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Rolling Average and RankingHard
Practice
Practice drill

Use CTEs and window functions to calculate 7-day transaction averages and rank Loft users within each region.

Window FunctionsRankingRunning TotalsLoftArcadisCgi Nederland
SQL Duplicate Record DetectionEasy
Practice
Practice drill

Find duplicate American Institutes for Research assessment submissions using a CTE, GROUP BY, HAVING, and joins.

deduplicationsqldata integrityAmerican Institutes for ResearchMacy's
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankRevolutChime
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.