QA Engineer - Performance & Load Testing

Our client is a global financial services enterprise powering millions of daily consumer transactions. They are currently expanding their premium global dining division to support a major platform merger, requiring highly scalable, real-time infrastructure to handle high-volume traffic., They are looking for a Performance & Load Testing QA Engineer for a 100% hands-on, individual contributor role. You will ensure system stability during the integration of two major reservation platforms by designing complex load-test scenarios, analyzing latency percentiles, and tracking bottlenecks across APIs and event-driven architecture.

• MUST HAVE: Extensive hands-on experience with named load-testing tools (k6, JMeter, Gatling, or Locust).
• Strong background in testing HTTP/API and event/WebSocket traffic.
• Proven ability to perform deep performance analysis (latency percentiles, error rates, throughput).
• Demonstrated evidence of tracing bottlenecks and building scale-scenarios.
• Commitment to working entirely as a hands-on individual contributor.
• Design and execute comprehensive load and performance test scenarios.
• Analyze complex system metrics to identify throughput limits and latency percentiles.
• Trace and isolate infrastructure and application bottlenecks.
• Partner with engineering teams to optimize performance for a large-scale platform merger.