Best Workplace 2019

Great Place To Work Great Place To Work Europe
Kuba, service
delivery manager

Performance Tester

Location: Kraków

The challenges waiting for you:

Testing Services Competency Center at SII - who are we?

Maybe you heard that we are the biggest test center in Poland. But did you know that we…

  • … have been recognized by the British Testing Magazine and ComputerWorld as top testing service provider?
  • … have over 60 local and international clients?
  • … are currently completing more than 100 projects?

But what is our main expertise you may ask...


We work in diverse sectors starting from banking and telecommunication systems, through financial, media, pharma ending at the industrial sector.


We offer a whole range of testing services for web, mobile, desktop applications and web services.


With over 300 Test Specialists, we run over 0,5 mln test scripts each day! It's only possible because of the experience and hard work of all of our teams working in 10 SII's offices all around Poland.


We pay great attention to knowledge sharing - that's why we've established our own Testing Platform with some cool courses designed by our Test Specialists . However, not only there will you find various possibilities of development! Trainings and a lot of career pathways are waiting for you!


We don't do stagnation. On average, we've got almost 70 opportunities of project changes. Each year. Almost as good as in a candy store, isn't it?


Yes, we're big, experienced and offer many development opportunities. That's our Testing Services Competency Center.



  • Supervising the technical aspects of Performance Testing
  • Reviewing and design of Test cases and Test concepts
  • Review test execution and test documentation
  • Analyze critical Performance / Load tests
  • Execute and plan performance tests

Required skills:

  • Experience in performance testing using JMeter
  • Expose, secure and manage backend applications, network systems or infrastructure via APIs  
  • Solid experience in API testing
  • Experience with performance monitoring tools, performance tuning
  • Experience in working on Finetuning/Load balancing/Config setup
  • Experience in preparing test scenarios for developed scripts
  • Experience in analyzing the reports and document the observations in order to identify bottlenecks

Why it's worth to join Sii?:

  • You will join the Leader. With over 4 000 specialists, Sii is actually the fastest growing, most successful & undisputed number 1 IT & Engineering services company in Poland!
  • You will work on challenging & fascinating international projects run for hundreds of prestigious customers from various sectors & industries
  • We will guarantee you many career development opportunities, facilitated by our Job changer application which allows you to change a project, the area of your activity or a place of work
  • You will cooperate with the best experts in talented & passionate teams on most advanced cutting-edge technologies
  • You will work in Great Place to Work company with amazing atmosphere and authentic values. You will meet new fantastic friends here!
  • We will support your personal dreams and initiatives within Passion Sponsorship Program and Power Volunteers Program
  • We will invite you to awesome integration meetings, interest groups and meetups
  • You will enjoy comfortable, top class, modernly designed offices in the best locations

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