Performance Test Engineer

Kaunas, Lithuania

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CUJO AI is the leading artificial intelligence company, delivering its services worldwide. We provide Network Operators revolutionary AI-driven solutions, including network security, device intelligence, and parental controls. We create technology that helps Network Operators to offer personalized end-user experiences using data and machine learning for both LAN and mobile (4G/LTE). CUJO AI Quality Assurance team is looking for Performance Test Engineer to join them!


  • Own, drive and improve performance testing process within a performance test team following Agile methodology;
  • Design and develop performance testing framework/tools, tests, and scripts;
  • Continuously improve performance testing framework, test scripts to maximize test coverage and be able to identify weaknesses;
  • Review functional and technical documentation to identify early-stage drawbacks and evaluate requirements for new test automation features;
  • Execute testing scripts and generate testing result report
  • Investigate problems as a result of testing;
  • Working with QA analysts and software developers to find solutions.


  • Experience in performance testing of scalable systems
  • Strong programming skills in Java;
  • Good knowledge of IP networking (OSI layer 2 through layer 7);
  • Strong analytical skills, creativity, and detail-oriented;
  • Familiar with the development challenges inherent with scalable distributed systems;
  • Familiar with Agile Development Methodologies.


  • We’re passionate about quality, security and continuous delivery;
  • Trips to our other offices and clients’ sites;
  • Interesting and diverse challenges working with distributed environment, big data and scalability;
  • Ability to work flexible hours;
  • Comfortable office and modern development equipment;
  • We embrace Agile software development;
  • Sponsored participation in professional improvement events;