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Senior Performance Tester
  • Warszawa
Senior Performance Tester
Warszawa, Warszawa, mazowieckie, Polska
Square One Resources Sp. z o.o.
19. 3. 2026
Informacje o stanowisku

Performing system performance tests to ensure the system capacity, reliability, and scalability on some of the world’s most popular technology software.

Senior Performance Tester



Your responsibilities

  • Review, analysis and recommendations of system and performance related requirements
  • Cooperate with customers and client's delivery team to define performance tests scope and approach
  • Assistance in project planning and scheduling
  • Designing Test Plans and Test Cases based on the requirements and project needs
  • Performing system performance tests to ensure the system capacity, reliability and scalability
  • Create and execute performance test scripts
  • Analyse test results and root causes of performance issues and provide corrective actions
  • Support logging and troubleshooting of performance related defects
  • Report on testing effort status and results
  • Provide support for design and development

Our requirements

  • At least 4 years of experience in performance testing (testing of enterprise class systems preferably)
  • Experience in independent performance testing approach definition
  • Expertise in testing tools such as JMeter/Load Runner
  • Practical knowledge of preparing/designing, conducting and documenting tests
  • Experience with investigating performance issues in a microservices environment
  • Very good command of English (communication with international project’s team members on daily basis)
  • Very good communication skills (both oral and written communication) and ability to work in a group
  • Open minded, with a proactive attitude
  • Analytical skills and attention to detail
  • Independence and proactive approach
  • Experience with at least one programming or scripting languages such as Java, Python, TypeScript
  • Availability 5 days a week
  • Experience in test automation area (UI, API testing)
  • Experience and knowledge of Application Performance Monitoring tools such as AppDynamics, DataDog, log analysis tools, etc.
  • Experience in building performance test frameworks from scratch
  • Good understanding of Waterfall and Agile Project Management methodologies
  • Prior experience in working in international environment
  • ISTQB certification
  • Familiarity with DevOps culture
  • CI/CD knowledge

 

  • Praca Warszawa
  • Tester Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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