Senior QA Performance Tester Location: Toronto, ON Work Model: Hybrid (3 Days WFO) Duration: 612 Months Mandatory Requirement DO NOT SUBMIT JUNIOR CANDIDATES Minimum 10+ years of experience required Strong hands-on NFT / Load Testing experience using JMeter is mandatory Job Description Role Description Design, develop, and maintain robust JMeter test frameworks to support large-scale performance, load, stress, and endurance testing. Create realistic workload models and load profiles aligned with business scenarios, SLAs, and production traffic patterns. Execute end-to-end performance test cycles, including test planning, execution, monitoring, analysis, and reporting. Identify performance bottlenecks, memory leaks, and system constraints through detailed analysis and root cause investigation. Leverage enterprise monitoring and observability tools such as Splunk, AppDynamics, and Kafka to track system behavior and diagnose performance issues across distributed systems. Collaborate with ...