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Eli Lilly and Software Engineer Interview Questions

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

50questions
~8htotal time
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1
CodingStart here. 16 questions · ~154 min
Egg Drop Minimum IterationsHard
Practice

Compute the minimum worst-case drops needed to identify a critical floor using moves-based dynamic programming.

optimizationEli Lilly and
Find Unique Pairs for TargetEasy
Practice

Find all distinct value pairs that reach a target sum using sorting and two pointers.

Arraystwo sumEli Lilly and
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2
Execution19 questions · ~182 min
Agile and Scrum Delivery ApproachEasy

Explain how you’ve used Agile or Scrum in practice to plan work, manage backlog, and improve delivery execution.

Success CriteriaRoadmappingScope ManagementEli Lilly and
Basic QA and AutomationEasy

Assesses foundational testing concepts and practical automation knowledge.

AutomationEli Lilly and
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3
System Design5 questions · ~48 min
REST API Architecture and SecurityMedium

Evaluates system design fundamentals with practical security and reliability considerations.

api designSecurityarchitectureEli Lilly and
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4
Behavioral & Leadership5 questions · ~48 min
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5
More topics5 questions · ~48 min
WASM Edge and Future TechMedium

Evaluates understanding of modern infrastructure and your curiosity about emerging tech.

Eli Lilly and
Trade-offs for Data RetrievalMedium

Assesses data structure selection based on performance trade-offs in production workloads.

performanceData StructuresEli Lilly and
Data Integrity UnderstandingMedium

Evaluates your grasp of data correctness, validation, and consistency practices.

data integritydatabase conceptsEli Lilly and
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Inner Join vs Outer JoinEasy
Practice
Practice drill

Demonstrate how INNER JOIN and FULL OUTER JOIN handle matching and unmatched rows.

JoinsData Wranglingnull valuesRocketNeenOpaleBay
Active Customer List by CityEasy
Practice
Practice drill

Retrieve active customers from a single table, grouped by city with a customer count and sorted by highest count.

JoinsData WranglingAggregationsEli Lilly and
Window Functions SQL QueryMedium
Practice
Practice drill

Rank Eli Lilly products by regional completed prescription revenue using aggregation, joins, a CTE, and RANK().

Window FunctionsRankingRunning TotalsEli Lilly and
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.