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Updated weekly · Last refresh Sep 21

Cummins Software Engineer Interview Questions

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

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ExecutionStart here. 12 questions · ~99 min

Your Strengths and WeaknessesEasy

Give a specific, self-aware account of your strengths and weaknesses, supported by relevant examples and improvement actions.

Trade-offsSuccess CriteriaExecution

Cummins

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Coding12 questions · ~99 min

Optimizing Existing Algorithms for PerformanceMedium

Explain how to optimize a slow algorithm by analyzing complexity, bottlenecks, and better data structures or techniques.

Hash TablesArraysGreedy

Cummins

Systematic Debugging for Complex BugsEasy

Explain a structured debugging approach: reproduce, isolate, inspect signals, test hypotheses, and verify the fix.

Hash TablesSearching

Cummins

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SQL & Data Manipulation3 questions + 3 drills · ~55 min

Understanding Common Table Expressions (CTEs)Medium

Explain what CTEs are and their advantages in SQL queries.

CTEs

Cummins

Global Dashboard Access ControlMedium

Evaluates your approach to secure, country-based data access in a shared-profile environment.

Cummins

Handling Missing DataMedium

Practice

Practice drill

Standardize missing observation fields with fallback values, missingness flags, and ordered output.

Window Functionsmissing valuesdata cleaning

Eversource Energy

Cincinnati Children's Hospital

Adtalem Global Education

Optimize a Slow SQL QueryHard

Practice

Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData Wrangling

AmeripriseEEltro Cyberchrome Private

EnergyHub

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 Wrangling

Gain Digital

TCS

Zest AI

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System Design3 questions · ~25 min

Design Process for SoftwareMedium

Evaluates how you translate requirements into a maintainable software design.

design process

Cummins

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Technical Fundamentals5 questions · ~41 min

Agile and Backlog BasicsMedium

Assesses your understanding of agile concepts and how you work with prioritized work.

Agile

Cummins

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Security & Infrastructure12 questions · ~99 min

Diesel Engine and Systems EngineeringMedium

Evaluates your understanding of diesel engine fundamentals and systems engineering process.

Cummins

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