Senior Performance Test Engineer

We are looking for a Senior Performance Test Engineer with strong expertise in performance engineering load testing and bottleneck analysis across web and API-based applications. The ideal candidate will be responsible for designing executing and analyzing performance tests to ensure applications meet scalability stability and response-time goals.

This role involves close collaboration with development DevOps and architecture teams to drive end-to-end performance optimization throughout the SDLC.

• Design and implement performance test strategies for complex distributed applications across web mobile and API layers.
• Develop and execute load stress soak and endurance tests using tools such as JMeter LoadRunner or k6.
• Create parameterized reusable and maintainable test scripts that simulate real-world user behavior.
• Work closely with application database and infrastructure teams to identify performance bottlenecks and recommend optimizations.
• Perform baseline and benchmarking to establish performance SLAs and track improvement trends.
• Monitor and analyze system resource utilization (CPU memory I/O GC thread usage) during test execution.
• Generate detailed test result reports correlating application metrics with system performance data.
• Contribute to root cause analysis (RCA) of performance issues and collaborate on tuning recommendations.
• Integrate performance tests within CI/CD pipelines for continuous validation..

• Required Skills & Experience

• 6 years of experience in performance testing and engineering for enterprise-grade applications.
• Experience with Retail domain in E-commerce.
• Proficiency with performance testing tools: Apache JMeter (preferred) LoadRunner or k6.
• Hands-on experience with profiling and monitoring tools such as Dynatrace AppDynamics Grafana Prometheus or New Relic.
• Strong understanding of web technologies (HTTP REST caching session management) and API testing.
• Expertise in performance analysis - CPU memory garbage collection network latency and database tuning.
• Experience with CI/CD pipelines and integrating performance tests into Jenkins GitHub Actions or similar tools.
• Solid knowledge of test result correlation and trend analysis using metrics and dashboards.
• Ability to interpret and optimize application server configurations (Tomcat WebLogic IIS Nginx).
• Experience in scripting (Python Groovy Java or shell scripting) for test customization and automation.
• Excellent analytical troubleshooting and problem-solving skills.

  Good-to-Have Skills

• Familiarity with cloud-based performance testing (AWS Azure or GCP environments).
• Exposure to containerized environments (Docker Kubernetes) and their performance impact.
• Understanding of microservices performance patterns and distributed system tracing.
• Experience using APM tools to perform end-to-end transaction tracing.
• Basic knowledge of database query optimization and indexing.
• Awareness of DevOps and SRE practices for continuous performance monitoring.

• Must have for this position: JMeter k6 and Retail domain in E-commerce.