Senior Performance Engineer - Load & API Testing Expert

PineQ Lab Technology; New York (NY); On-site; USD 120,000 - 170,000; Full time

Job summary

PineQ Lab Technology is seeking an experienced Performance Engineer to design, implement and maintain a scalable performance testing framework for web, API and backend services. You will work hands-on with Apache JMeter, API automation, and collaborate with DevOps to optimize infrastructure.

The role includes leading load, stress, endurance and scalability tests, monitoring CPU, memory and network metrics, and presenting findings to stakeholders to drive platform improvements across CI/CD and

Qualifications

• 12+ years of experience in performance engineering.
• Triaging experience on network and AWS infra systems is required.
• Design, develop, and maintain performance test scripts using Apache JMeter or similar tools for web, API, and backend systems.
• Conduct load, stress, endurance, and scalability testing for applications and microservices.
• Design and deployment of performance test framework.
• Experience with API automation and performance testing (REST, SOAP).
• Knowledge of HTTP/HTTPS, JSON, XML.
• Familiarity with CI/CD tools (Jenkins, Git).
• Strong analytical, troubleshooting, and communication skills.

Responsibilities

• Analyze test results, identify performance bottlenecks, and provide actionable recommendations.
• Monitor system performance metrics (CPU, memory, GC, I/O, network) during test execution.
• Collaborate with development and DevOps teams to optimize application and infrastructure performance.
• Integrate performance tests into CI/CD pipelines.
• Prepare detailed performance test reports and present findings to stakeholders.

Skills

Performance testing

JMeter expertise

Frontend performance

API performance testing

CI/CD integration

Troubleshooting

Tools

Apache JMeter

Jenkins

Git

Next.js

Job description

PineQ Lab Technology is seeking an experienced Performance Engineer to design, implement and maintain a scalable performance testing framework for web, API and backend services. You will work hands-on with Apache JMeter, API automation, and collaborate with DevOps to optimize infrastructure.

The role includes leading load, stress, endurance and scalability tests, monitoring CPU, memory and network metrics, and presenting findings to stakeholders to drive platform improvements across CI/CD and