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Updated weekly · Last refresh Oct 17

Spectrum Data Engineer Interview Questions

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

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1
CodingStart here. 1 question · ~9 min
Opening Files with LinuxEasy

Tests practical Linux command-line skills for file handling.

linuxSpectrum
2
SQL & Data Manipulation1 question + 3 drills · ~39 min
Window Functions and CTEsHard

Evaluates advanced SQL skills including window functions, CTEs, and aggregation.

Window FunctionssqlSpectrum
7-Day Rolling Usage with SQL WindowsMedium
Practice
Practice drill

Calculate Spectrum account usage and 7-day rolling averages with PostgreSQL window functions.

Window FunctionsDate FunctionsData ManipulationEricssonSpectrum
Second-Highest Subscriber PaymentMedium
Practice
Practice drill

Find the second-highest distinct subscriber payment from billing records using aggregation and a scalar subquery.

Subqueriesnull handlingRankingSpectrum
Writing SQL to Retrieve Needed DataMedium
Practice
Practice drill

Return active accounts with overdue unpaid balances, combining customer, account, and invoice data.

JoinssqlAggregationsSpectrum

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