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Updated weekly · Last refresh Oct 17

Knowesis Software Engineer Interview Questions

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

25questions
~4htotal time
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1
CodingStart here. 9 questions · ~88 min
First Non-Repeating CharacterEasy
Practice

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearchingKnowesis
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysKnowesis
Version Control Tools and ImportanceEasy

Explain Git-based version control, why it matters for collaboration, traceability, and safe code changes.

technicalProgrammingtoolingKnowesis
Explain Time Complexity of Array SearchEasy

Explain how to analyze the time complexity of a common array search solution and justify the Big O result.

MathArraysSearchingKnowesis
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2
Execution15 questions · ~146 min
Manage Cloud Security RisksMedium

Explain how you would identify, prioritize, and mitigate cloud security risks while keeping a critical platform delivery on track.

Cloud Security RisksDevOpsSecurityKnowesis
Explain REST vs SOAP ClearlyEasy

Explain RESTful APIs and SOAP clearly, focusing on practical differences that matter for delivery and integration decisions.

Trade-offsScope ManagementKnowesis
Mentoring a Teammate Through DeliveryEasy

Describe how you mentored a colleague or strengthened team capability while still delivering on an important engineering project.

Risk AssessmentScope ManagementKnowesis
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3
More topics1 question · ~10 min
Optimizing a Slow QueryHard

Tests query tuning skills, indexing strategy, and diagnosing performance bottlenecks.

SubqueriesJoinsAggregationsKnowesis
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Top Customers SQL QueryEasy
Practice
Practice drill

Aggregate customer sales volume and return Pyramid Consulting's top 10 customers in descending order.

RankingGroup ByAggregationsPyramid ConsultingBNYCambia Health Solutions
Rolling Average with SQL WindowsMedium
Practice
Practice drill

Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.

TavantRpmglobalTwo Six Technologies
Database Indexing Trade-OffsHard
Practice
Practice drill

Analyze a food-order total query and explain index trade-offs for filtering, joins, aggregation, and write overhead.

Trade-offsdatabase optimizationJoinsHelloFresh
The finish line: interview-readyComplete all 25 questions plus 3 hands-on drills to finish this plan.