Lead Test Engineer

Vilnius, 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 team is looking for highly skilled Lead Test Engineer to join the team!


  • Own, drive testing process within a feature team following Agile methodology;
  • Design and develop test plans, cases, and scripts;
  • Continuously improve test plans, test cases and scripts to maximize test coverage;
  • Application, integration and acceptance testing of security features;
  • Review functional and technical documentation to identify early stage;
  • Execute cases/scripts and generate testing result report;
  • Investigate problems as a result of testing;
  • Working with QA engineers and software developers to find solutions.



  • Good knowledge of IP networking (OSI layer 2 through layer 7);
  • 1+ year of experience working with Linux environment;
  • Experience testing security products or features;
  • Strong analytical skills, creativity, and detail-oriented;
  • Experience with Agile Development Methodologies;
  • Ability to function effectively in a fast-paced environment;
  • Fluent in technical English – both spoken and written.


  • Automation testing experience, automated CI/CD;
  • Embedded systems testing experience;
  • Experience writing and performing stress/load/security testing;
  • Big Data testing experience, AWS, AI.


  • 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;