Senior Performance Engineer - API & Cloud Load Testing

HCL Global Systems Inc; Sunnyvale (CA); Hybrid; USD 140,000 - 210,000; Full time

Job summary

HCL Global Systems Inc in Sunnyvale, CA, is seeking a Lead Performance Engineer to design, develop, and execute performance testing strategies for enterprise and cloud-based applications. The role requires hands-on experience with JMeter, LoadRunner, K6, Gatling, DataDog, Dynatrace, and API/web testing, plus collaboration with DevOps and engineering teams to ensure scalable and reliable systems.

Hybrid work model with local candidates preferred.

Qualifications

• 8–10 years of experience in performance engineering.

Responsibilities

• Design, develop, and execute performance testing strategies for enterprise and cloud-based applications.
• Triaging on network and AWS infra systems.
• Analyze results and provide actionable recommendations.
• Integrate performance tests into CI/CD pipelines.
• Prepare detailed performance test reports and present findings to stakeholders.

Skills

Performance testing

Next.js testing

CI/CD collaboration

Tools

Apache JMeter

LoadRunner

K6

Gatling

DataDog

Dynatrace

Jenkins

Job description

HCL Global Systems Inc in Sunnyvale, CA, is seeking a Lead Performance Engineer to design, develop, and execute performance testing strategies for enterprise and cloud-based applications. The role requires hands-on experience with JMeter, LoadRunner, K6, Gatling, DataDog, Dynatrace, and API/web testing, plus collaboration with DevOps and engineering teams to ensure scalable and reliable systems.

Hybrid work model with local candidates preferred.