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Excelacom Software Engineer Interview Questions

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

40questions
~7htotal time
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1
CodingStart here. 16 questions · ~170 min
Generate Fibonacci SeriesEasy
Practice

Generate the first n Fibonacci numbers using an iterative algorithm.

Basic AlgorithmsloopsExcelacom
Check Palindrome StringEasy
Practice

Use a two-pointer string scan to determine whether a string reads the same forward and backward.

RecursionStringsData StructuresExcelacom
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2
Security & Infrastructure3 questions · ~32 min
Memory Management in ProgrammingMedium

Tests understanding of memory lifecycle and common pitfalls like leaks and fragmentation.

InfrastructureQualityExcelacom
Ensure System Reliability and PerformanceMedium

Tests reliability engineering practices such as monitoring, scaling, and performance tuning.

InfrastructureQualityExcelacom
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3
Behavioral & Leadership15 questions · ~160 min
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4
More topics6 questions · ~64 min
Design Smart Message Delivery RankingHard

Design an ML driven message delivery and prioritization system for a large real-time messaging product.

Feature StoreRetrievalModel ServingExcelacom
Database Design for High TrafficMedium

Tests database modeling, indexing, and scalability tradeoffs for high-load systems.

JoinsData WranglingAggregationsExcelacom
Improving an Existing ApplicationMedium

Tests your approach to assessing, refactoring, and safely evolving production systems.

Trade-offsSuccess CriteriaRoadmappingExcelacom
Architect a Solution From ScratchHard

Tests system design thinking, requirements decomposition, and end-to-end architecture decisions.

Feature StoreRetrievalModel ServingExcelacom
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Resolve Conflicting Customer AttributesMedium
Practice
Practice drill

Use joins, CTEs, and row ranking to resolve conflicting customer profile values across ACME House systems.

JoinsData WranglingQualityRamsey SolutionsACME House
Reconcile Conflicting Invoice TotalsMedium
Practice
Practice drill

Reconcile billing and ERP invoice totals using joins, a CTE for latest snapshots, and CASE-based discrepancy classification.

JoinsData WranglingQualityLiterati
The finish line: interview-readyComplete all 40 questions plus 3 hands-on drills to finish this plan.