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Performance Tester - Load / Stress Testing

Performance Tester - Load / Stress Testing

iTheme Consulting Pvt LtdBangalore
20 hours ago
Job description

Description :

Key Responsibilities :

  • Design, develop, and execute load, stress, and endurance tests for web and API-based applications.
  • Develop robust performance test scripts with parameterization, correlation, and dynamic data handling.
  • Analyze performance test results, identify bottlenecks, and provide detailed root cause analysis across application and database layers.
  • Use observability platforms (Dynatrace, AppDynamics, Grafana, CloudWatch, etc.) to correlate metrics and traces with test outcomes.
  • Collaborate with developers and infrastructure engineers to tune performance and resolve scalability issues.
  • Generate detailed performance reports, including trend charts, 95th percentile analysis, and throughput summaries.
  • Present findings and recommendations to stakeholders during review or tuning sessions.
  • Contribute to automation and CI / CD integration for performance test execution.
  • Support ongoing initiatives in cloud performance testing and system optimization.

Must-Have Skills :

  • Hands-on experience with Performance Testing Tools such as JMeter, LoadRunner, Gatling, or k6, with end-to-end script creation, parameterization, correlation, and test design for dynamic flows.
  • Proven ability to analyze throughput, latency, and concurrency metrics and interpret complex performance test outcomes.
  • Strong understanding of bottleneck diagnosis across application, middleware, and database layers, including response time breakdown and 95th percentile interpretation.
  • Proficiency with monitoring and observability tools (Dynatrace, AppDynamics, Grafana, CloudWatch, etc.) able to read dashboards, traces, and KPIs to validate performance health.
  • Working knowledge of scripting and automation (Python, Shell, REST CLI tools) for test execution, data setup, and integration with pipelines.
  • Strong stakeholder communication skills capable of preparing and presenting performance summaries, RCA reports, and improvement plans.
  • Proven experience in high-volume transactional domains such as BFSI, Fintech, Insurance, or Telecom, dealing with SLA-driven, multi-tier systems.
  • Nice-to-Have Skills :

  • Experience with LoadRunner protocols (HTTP, Web, Citrix) in addition to other tools.
  • Exposure to cloud-native performance testing in AWS, GCP, or Azure environments, including autoscaling and telemetry analysis.
  • Experience integrating performance testing with CI / CD pipelines (Jenkins, GitLab, Azure DevOps) and feedback loop automation.
  • Familiarity with advanced infrastructure diagnostics, including JVM GC tuning, thread dump analysis, and TCP-level investigation.
  • Certifications such as ISTQB Advanced Performance Testing or equivalent are an advantage but not mandatory.
  • (ref : hirist.tech)

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