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API/ UI/ Mobile App performance Tester

Datum Technologies Group

Performance Test Engineer – NeoLoad (API / UI / Mobile)

We are seeking a skilled Performance Test Engineer with hands-on experience in NeoLoad to perform API, UI, and mobile application performance testing. The role involves designing performance test strategies, executing load tests, analyzing system behavior, and ensuring application scalability, stability, and reliability in production-like environments.

Key Responsibilities:

  • Design and execute performance, load, stress, spike, and endurance tests
  • Develop and maintain performance test scripts using NeoLoad
  • Perform API performance testing (REST/SOAP)
  • Conduct UI performance testing for web applications
  • Execute mobile application performance testing (Android/iOS)
  • Analyze performance results to identify bottlenecks across application, database, and infrastructure layers
  • Collaborate with developers, architects, DevOps, and business teams to resolve performance issues
  • Monitor system behavior using application and infrastructure monitoring tools
  • Prepare performance test reports, metrics, and recommendations
  • Integrate performance tests into CI/CD pipelines
  • Support capacity planning and production readiness assessments
  • Participate in Agile/Scrum ceremonies

Required Skills:

Performance Testing

  • Strong hands-on experience with NeoLoad
  • Strong understanding of performance testing methodologies
  • Experience in load modeling and workload design

API / UI / Mobile Testing

  • Experience in API performance testing (REST/SOAP)
  • Hands-on experience with web UI performance testing
  • Experience in mobile application performance testing
  • Understanding of client-side and server-side performance metrics

Tools & Technologies

  • Experience with monitoring tools (APM, logs, metrics)
  • Knowledge of protocols, JSON, XML
  • Familiarity with CI/CD tools (Jenkins, GitLab, etc.)
  • Proficiency in Linux/Unix commands

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Vacancy posted 2 days ago
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