Sun Life is hiring a Performance Tester in Gurugram. You will learn the non-functional requirements of business-critical journeys, contribute to performance test plans and workload models (transaction mix, concurrency, throughput, pacing, think time and duration), and develop and maintain reusable test scripts with correlation, parameterisation and assertions. The job covers preparing test data, running tests, analysing application and infrastructure metrics, and reporting results against agreed performance criteria. You will also help investigate bottlenecks, validate fixes, and improve the practice through reusable assets and automation, while overall strategy and release approval stay with the leads. The posting asks for about 3 to 5 years of experience.