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Updated weekly · Last refresh Aug 30

Waste Connections Software Engineer Interview Questions

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

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1
SQL & Data ManipulationStart here. 4 questions + 3 drills · ~62 min
Join Types and When to UseMedium

Tests understanding of SQL join semantics and ability to choose the correct join for data needs.

JoinsData ManipulationsqlWaste Connections
SQL Join With Date FilteringMedium

Tests SQL proficiency for joining, filtering by operational dates, and producing aggregated outputs.

Date FunctionsJoinsAggregationsWaste Connections
Optimizing Slow QueriesMedium

Tests performance troubleshooting skills and knowledge of indexing strategies.

Performance TuningindexessqlWaste Connections
Mid-Level SQL SkillsMedium

Assesses your SQL competency across typical mid-level query patterns and data manipulation tasks.

sqlWaste Connections
Average Vehicle Idle Time by ZoneHard
Practice
Practice drill

Use joins, a CTE, and aggregations to calculate average vehicle idle minutes in a specific geographic zone.

JoinsData ManipulationsqlWaymo
Weekly Service KPI by TeamMedium
Practice
Practice drill

Analyze weekly service delivery performance by team using joins, a CTE, date aggregation, and KPI calculations.

KPIJoinssqlDeloitteReputation
SQL Ranking by SalaryEasy
Practice
Practice drill

Join employee and salary data, then rank employees within each Intuit product company using a PostgreSQL window function.

JoinssqlAggregationsIntuit
2
Behavioral & Leadership19 questions · ~152 min
Applying OOP for MaintainabilityMedium

Tests your ability to design maintainable software using OOP principles relevant to production systems.

maintainabilitytechnical experienceoopWaste Connections
Learning New Tech QuicklyMedium

Tests your learning agility when building solutions that support Waste Connections operations.

adaptabilitycontinuous learningtechnical experienceWaste Connections
Responding to Code Review FeedbackEasy

Tests receptiveness, professionalism, and quality improvement practices in engineering teams.

code qualityfeedbackcollaborationWaste Connections
More Behavioral & Leadership questions with a free account
3
More topics1 question · ~8 min
Previous Experience OverviewEasy

Tests your ability to summarize relevant experience and connect it to the Account Executive role.

Risk AssessmentScope ManagementWaste Connections

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The finish line: interview-readyComplete all 24 questions plus 3 hands-on drills to finish this plan.