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Updated weekly · Last refresh Oct 17EPAM Systems Data Visualisation Specialist Interview Questions
The questions to prepare for a EPAM Systems Data Visualisation Specialist interview. Questions from real interview reports rank first. Updated daily.
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SQL & Data ManipulationStart here. 1 question + 3 drills · ~38 min
SQL Performance TuningHard
Evaluates your ability to optimize SQL performance across different query and connectivity patterns.
Performance Tuning
EPAM Systems
EPAM SystemsAnalyze Customer Purchase Trends with Window FunctionsEasy
Practice
Practice drillCalculate the monthly spending trends for customers using window functions and joins.
The Home Depot
Aviso
Hewlett Packard EnterpriseSQL Join for Max SalaryMedium
Practice
Recently asked
Practice drillUse joins and aggregation to return every employee tied for the highest salary in each department.
JoinsGroup ByAggregationsCCDWEEntain India
Idfc First Bank
Idfc First BankSQL Window Functions for Rolling MetricsHard
Practice
Practice drillCalculate each user's 7-day activity average and rank users within their cohort using PostgreSQL window functions.
Window FunctionsDate FunctionsData Manipulation
Tredence
Echostar
Eliassen Group
TredenceEchostarEliassen Group2
Behavioral & Leadership1 question · ~8 min
Handling Urgent DeliveryMedium
Assesses estimation, prioritization, and how you manage delivery risk under time pressure.
EstimationConflict ResolutionEPAM Systems
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The finish line: interview-readyComplete all 2 questions plus 3 hands-on drills to finish this plan.