Top 50

Prep plan

Updated weekly · Last refresh Aug 30

Appfolio Software Engineer Interview Questions

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

50questions

~8htotal time

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1

CodingStart here. 13 questions · ~125 min

Roman Numeral ConverterMedium

Convert canonical Roman numerals and integers in both directions using a validated class-based parser.

error handlingclean code

Move Zeros to the End of ArrayEasy

Practice

Rearrange an array to move all zeros to the end while maintaining the order of non-zero elements.

ArraysSortingTwo Pointers

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2

Execution13 questions · ~125 min

Discuss Project Execution ChallengesEasy

Describe a project you led, how you managed stakeholders, handled risks, and made trade-offs to deliver.

Trade-offsRisk AssessmentScope Management

High Availability With IntegrityHard

Tests distributed systems thinking for HA, consistency, and scaling.

Trade-offsSuccess CriteriaRisk Assessment

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3

System Design13 questions · ~125 min

Phone Book OODMedium

Tests your object-oriented design skills for a data lookup system.

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4

Security & Infrastructure6 questions · ~58 min

Pagination and Secure REST EndpointsEasy

Assesses your understanding of web request flow and basic HTTP behavior.

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5

Behavioral & Leadership3 questions · ~29 min

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6

More topics2 questions · ~19 min

Real-Time Dashboard Data PipelineMedium

Design a streaming pipeline that keeps dashboard data fresh and accurate for operational reporting.

InfrastructureStream ProcessingOrchestration

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SQL: mysql -p vs -PEasy

Tests your knowledge of MySQL CLI flags and correct command usage.

mysql

Appfolio

Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min

Calculate Monthly Sales Growth by Product CategoryMedium

Calculate month-over-month sales growth for each product category using JOINs and window functions.

JoinsAggregations

Monthly Revenue Running Totals by RegionMedium

Use joins, monthly aggregation, and window functions to compute running revenue totals and customer rank by region.

Window FunctionsRankingRunning Totals

Rank Tenants by Payment TimelinessMedium

Rank tenants within each AppFolio property using payment aggregations and a window function.

Window FunctionsJoinsRanking

The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.