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Santander Holdings USA Software Engineer Interview Questions

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

37questions
~5htotal time
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1
SQL & Data ManipulationStart here. 9 questions + 3 drills · ~104 min
Understanding ACID Properties in DatabasesMedium

Explain the ACID properties of database transactions and their importance.

Santander Holdings USA
Star vs Snowflake for Sales AnalyticsMedium

Compare star and snowflake schemas for warehouse design, including trade-offs in normalization, query simplicity, and analytics performance.

JoinsData WranglingGroup BySantander Holdings USA
Autonomous vs Manual Drive TimeHard
Practice
Practice drill

Compute per-vehicle daily autonomous vs manual seconds from state-change logs using LEAD and conditional aggregation.

JoinsData WranglingGroup By
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 WranglingGain DigitalTCSZest AI
SQL Join With Matching and Non-MatchingMedium
Practice
Practice drill

Use a FULL OUTER JOIN and CASE expression to identify matched and unmatched OneTrust QA test cases and executions.

JoinsData WranglingCase WhenHealth CatalystGoodwill Industries Of TulsaOneTrust
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2
Pipelines3 questions · ~25 min
Star vs Snowflake SchemaEasy

Compare star and snowflake schemas in a warehouse pipeline, including structure and transformation trade-offs.

snowflake schemastar schemaData ModelingSantander Holdings USA
Kafka-Based Async ProcessingMedium

Tests event-driven design, reliability, and operational thinking for asynchronous banking workflows.

Stream ProcessingkafkaSantander Holdings USA
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3
Coding6 questions · ~49 min
Analyze Time and Space ComplexityEasy

Explain how to derive time and space complexity for a coding solution and justify the final Big O bounds.

Hash TablesArraysSortingSantander Holdings USA
Detect Cycle in Linked ListMedium

Tests core algorithm knowledge and ability to reason about pointer-based traversal.

Linked ListsdfsAlgorithmsSantander Holdings USA
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4
Behavioral & Leadership16 questions · ~131 min
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5
More topics3 questions · ~25 min
Cluster-Level Caching StrategyHard

Tests caching design, consistency considerations, and performance optimization for high-traffic services.

Trade-offsSantander Holdings USA
Microservices and When to Use ThemMedium

Evaluates system design judgment for when microservices are appropriate.

architecturemicroservicesSantander Holdings USA
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The finish line: interview-readyComplete all 37 questions plus 3 hands-on drills to finish this plan.