Dataford
Dataford
Top 19
Prep plan
Updated weekly · Last refresh Oct 17

Hearth Software Engineer Interview Questions

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

19questions
~3htotal time
Track your progressSign up free to work through all 19 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 4 questions · ~39 min
IPv6 Parsing and NormalizationMedium

Tests ability to implement robust IPv6 parsing and normalization logic.

data parsingHearth
Sorting and Data ParsingHard

Evaluates problem-solving across algorithmic and parsing challenges under time pressure.

data parsingHearth
More Coding questions with a free account
2
Behavioral & Leadership9 questions · ~89 min
More Behavioral & Leadership questions with a free account
3
More topics6 questions · ~59 min
React Debugging and CodingMedium

Assesses React development and debugging skills, including how you isolate and fix issues.

Hearth
SQL Monthly Transaction AggregationMedium
Practice

Aggregate settled monthly transaction volume and identify top-quartile contractor accounts.

Date Functionsfinancial dataAggregationsHearth
Rate Limiting for Hearth APIHard

Tests your system design skills for protecting an API with rate limiting while maintaining availability.

InfrastructureAPIsSecurityHearth
Guaranteed Contractor NotificationsHard

Tests your ability to design reliable, multi-channel notification pipelines with delivery guarantees.

Data QualityStream ProcessingOrchestrationHearth
Distributed Consistency Across Banking APIsHard

Tests ability to reason about distributed consistency, failure modes, and coordination across external services.

Trade-offsExecutionRisk AssessmentHearth
Billing and Invoicing Permissions SystemHard

Tests data modeling and API design for secure, role-based access to billing and invoicing features.

APIsSecurityData ModelingHearth

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Unique Elements and Top-K FrequenciesMedium
Practice
Practice drill

Return the first row for each unique value, then rank the k most frequent values.

large datasetsData Structurescomplex queriesEverlaw
Rolling Average with SQL Window FunctionsMedium
Practice
Practice drill

Calculate each commodity's 30-day rolling average price using a PostgreSQL window function.

Date Functionsfinancial dataData AnalysisCCommerzbankiidealo internet44flow
The finish line: interview-readyComplete all 19 questions plus 2 hands-on drills to finish this plan.