Senior Load Test Engineer

International cassino games studio

• 5+ years of hands-on performance and load testing experience on production-scale systems
• Strong practical experience with k6, Gatling, JMeter, or Locust — built complex scripts from scratch
• Good understanding of backend architecture, databases, and infrastructure behavior under load
• Comfortable reading and interpreting metrics from tools like Grafana, Datadog, New Relic, or similar
• Solid understanding of HTTP, WebSockets, and real-time communication protocols
• Experience testing APIs under load including auth flows, concurrent sessions, and stateful scenarios
• Familiar with CI/CD pipelines and integrating performance tests into automated build processes
• Fluent with Git and working within agile engineering teams
• Clear communicator able to explain complex performance issues to developers and product managers
• Self-driven and proactive in identifying problems
• Fluent English at least B2+ level

• Design and execute load, stress, spike, and soak tests against critical platform flows
• Analyze results and pinpoint exactly where and why performance degrades
• Work closely with backend engineers to understand system architecture and target the right bottlenecks
• Build and maintain performance test scripts that are reusable, version controlled, and easy to update as the product changes
• Integrate performance tests into CI/CD pipelines to catch regressions early
• Define performance benchmarks and thresholds in collaboration with engineering and product teams
• Monitor platform behavior under load using observability tools and correlate metrics with test results
• Document findings clearly and present actionable recommendations to engineering teams

Employment agency Nr 17138. Application rules are in accordance with GDPR.