5–8 years · Senior — Selenium / Playwright · API testing · Test design · CI integration · Python / Java · Debugging
Analyses test execution logs to identify slow tests; uses profiling tools to pinpoint resource-heavy tests; checks for unnecessary waits or retries; evaluates test dependencies and parallelisation opportunities; considers splitting the suite into smaller, more manageable suites.
Which specific changes do you make to improve execution time?
Analyzes performance metrics and logs for anomalies; identifies the specific endpoints affected; correlates with system resource usage (CPU, memory); checks for recent deployments or configuration changes; conducts a quick review of database queries for slow performance.
You identify a database query causing delays. How do you improve this without impacting the existing functionality?
Implements a test data management strategy; uses mocks or stubs for external data dependencies; creates scripts to seed the database with known good data before test runs; ensures data cleanup after tests; evaluates whether a data factory pattern can be used for dynamic test data generation.
How do you manage test data consistency across different environments?
Details the scope of the migration, specific technologies involved, and the timeline; identifies key challenges encountered and strategies used to mitigate risks; outlines stakeholder communication and alignment; mentions metrics used to measure success post-migration.
What changes would you make if you were to do it again?
Enables verbose logging for Selenium; checks for version mismatches between browsers and WebDriver; examines the application state before the failure; uses wait strategies to manage asynchronous elements; considers if environmental factors (like screen resolution) may impact test outcomes.
What tools do you use to gather more information about the failure?
Conducts a root cause analysis of the failure; reviews test coverage and identifies gaps; communicates findings to stakeholders; prioritises fixing the bug and updates tests accordingly; implements additional monitoring to catch similar issues in the future.
How do you ensure the team learns from this incident and prevents similar oversights in the future?
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