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Prep plan
Updated weekly · Last refresh Sep 22

EXCELON SOLUTIONS PRIVATE Software Engineer Interview Questions

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

25questions
~4htotal time
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1
CodingStart here. 8 questions · ~83 min
Implement Binary Search AlgorithmEasy
Practice

Write a binary search function to find a target value in a sorted array.

SearchingEXCELON SOLUTIONS PRIVATE
Palindrome Detection CodingEasy
Practice

Use two pointers to verify whether a test identifier reads the same forward and backward after normalization.

StringsTwo PointersEXCELON SOLUTIONS PRIVATE
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysEXCELON SOLUTIONS PRIVATE
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2
Execution7 questions · ~73 min
Ensure Distributed Data ConsistencyHard

Define an execution approach for maintaining data consistency across distributed systems while balancing delivery speed, risk, and operational resilience.

InfrastructureTrade-offsRisk AssessmentEXCELON SOLUTIONS PRIVATE
Monolith vs Distributed Trade-OffsMedium

Tests your ability to choose architectures based on constraints like latency, cost, and team operations.

Trade-offsRoadmappingRisk AssessmentEXCELON SOLUTIONS PRIVATE
Designing a Scalable Real-Time ChatHard

Tests system design skills for real-time services, scaling strategy, and reliability considerations.

Trade-offsRoadmappingRisk AssessmentEXCELON SOLUTIONS PRIVATE
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3
Behavioral & Leadership8 questions · ~83 min
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4
More topics2 questions · ~21 min
Design Patterns UsedMedium

Tests ability to apply proven patterns to improve structure and extensibility.

project experiencesoftware designdesign patternsEXCELON SOLUTIONS PRIVATE
Handling Duplicate Dataset EntriesEasy

Tests your approach to data cleaning, deduplication logic, and correctness in SQL and data manipulation.

Data WranglingCase WhenAggregationsEXCELON SOLUTIONS PRIVATE
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Database Trade-Offs for DetectionHard
Practice
Practice drill

Compare financial crime detection architectures using joined run metrics, aggregates, NULL handling, and ordered performance results.

fraud detectionTrade-offsdistributed databasesDeloitte
Detect Consecutive Losing StreaksMedium
Practice
Practice drill

Identify bet365 users with consecutive losing bets above a risk threshold using ordered streak grouping.

abuse trackingData Manipulationsql querybet365
Database Indexing Trade-offsHard
Practice
Practice drill

Compare PostgreSQL index strategies by read latency, write overhead, storage size, and an overall cost score.

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