Performance Test Engineer

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Job Summary:

We are seeking a highly skilled Performance Testing Engineer with 8–10 years of experience in

performance engineering across complex web and mobile applications. The ideal candidate

should have strong technical expertise in React.js, React Native, Node.js, Spring Boot, Java, along

with deep knowledge of MongoDB, MySQL, and experience with AWS infrastructure, profiling, and

monitoring tools.

Key Responsibilities:

• Plan, design, and execute performance tests (load, stress, endurance, scalability) for

frontend, backend, and database layers.

• Develop automated performance test scripts using tools such as JMeter, k6, Gatling,

Locust, etc.

• Conduct Java/Node.js profiling using VisualVM, JFR, YourKit, and analyze JVM metrics (GC,

heap, threads).

• Perform network simulation and latency analysis; troubleshoot application response

issues.

• Monitor and optimize application performance on React, React Native, backend Node.js,

Spring Boot/Java, and databases (MongoDB, MySQL).

• Define and track server KPIs: CPU, memory, I/O, latency, throughput, GC performance, and

thread utilization.• Utilize tools like New Relic, Dynatrace, Grafana, Prometheus, ELK, or AWS CloudWatch for

end-to-end monitoring.

• Collaborate with development, QA, DevOps, and architecture teams to recommend tuning

strategies and resolve performance bottlenecks.

• Ensure scalable, fault-tolerant architecture design in AWS cloud environments.

Required Skills & Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 8–10 years of solid experience in performance testing, tuning, and analysis.
• Strong command of React.js, React Native, Node.js, Java, Spring Boot.
• In-depth experience with MongoDB and MySQL, including performance analysis and tuning.
• Proficient in scripting and automating performance tests (e.g., Bash, Python, Groovy).
• Sound understanding of cloud performance engineering on AWS (EC2, ELB, Auto Scaling).
• Ability to interpret performance results and provide actionable insights.
• Familiarity with CI/CD pipelines and integration of performance tests in Jenkins/GitLab.

Preferred Skills:

• AWS Certification or Performance Engineering certifications.
• Experience in SaaS, microservices, or container-based (Docker/Kubernetes) ecosystems.
• Prior exposure to Agile environments and performance in CI/CD workflows.