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Updated weekly · Last refresh Oct 17

Grafana Labs Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 7 questions · ~60 min
Choosing Core Data StructuresEasy

Explain when to use arrays, hash tables, trees, and graphs in coding interview problems and the tradeoffs behind each choice.

Hash TablesArraysTreesGrafana Labs
React Component DevelopmentEasy

Evaluates your practical React skills and ability to build UI components.

reactGrafana Labs
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2
Pipelines5 questions · ~43 min
Design High-Throughput Event PipelineHard

Design a real-time event pipeline that can handle millions of events per second with sub-second latency.

data pipelineevent processinglatencyGrafana Labs
Time-Series Monitoring AlgorithmsMedium

Assesses your approach to building time-series monitoring logic for observability systems.

monitoringTime SeriesGrafana Labs
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3
Execution7 questions · ~60 min
Balance Speed, Quality, and ScopeMedium

Describe how you handled a tough trade-off between shipping fast, maintaining quality, and reducing scope.

Trade-offsRisk AssessmentScope ManagementGrafana Labs
Walk Through a Recent ProjectMedium

Evaluates how you communicate scope, tradeoffs, and impact from a recent project.

Grafana Labs
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4
System Design4 questions · ~34 min
Scalable Metric Storage DesignHard

Tests your ability to design scalable storage for high-ingest metrics in Grafana Labs-style observability workloads.

scalabilityGrafana Labs
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5
Behavioral & Leadership26 questions · ~221 min
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6
More topics1 question · ~9 min
Database Schema Design FactorsMedium

Tests data modeling skills including normalization, indexing, and query patterns.

JoinsGroup ByData ModelingGrafana Labs
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL for MoM Free Trial RetentionHard
Practice
Practice drill

Calculate next-month retention for Grafana Cloud free-trial signup cohorts using monthly activity data.

Window FunctionsDate FunctionsRetentionGrafana Labs
Contract Turnaround Time SQLMedium
Practice
Practice drill

Calculate team-level contract turnaround averages, medians, and month-over-month changes with PostgreSQL aggregations and window functions.

Window FunctionsLag/LeadDate FunctionsGrafana Labs
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
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.