Open positions

Posted |

December 27 2023

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Quality Assurance Engineer

System Integration was founded in 2001 and is part of the Comtrade Group, one of Europe’s largest technology companies. We specialize in cloud-based digital transformation and the design, development, integration and management of systems and applications.

Our domains of expertise include Cloud Services, Predictive Analytics, Digital Business Automation, Security, IoT, CRM, AI and more. Through our partnerships with global vendors, including Microsoft, Oracle, IBM and Open Text, we offer premium IT products that accelerate digital innovation.

Our team comprises 300+ IT experts who leverage their deep domain knowledge, top industry certifications and industry experience to help businesses optimize their IT resources and adopt digital technology more quickly and effectively than their competitors.

Our growing company Comtrade System Integration is currently seeking a QA Senior/Medior to join our team based at our headquarters in Belgrade.



  • UI and API testing of web applications;
  • Creation of detailed test plans and strategy documents;
  • Development and execution of test cases;
  • Collaboration with customers to conduct User Acceptance Testing (UAT);
  • Preparation of User Manuals for developed applications;
  • Performance testing to ensure optimal application functionality.



  • More than 3 years of proven work experience in QA;
  • Experience in testing web applications;
  • Proficiency in UI testing and API testing;
  • Strong knowledge of agile/SCRUM methodology;
  • Automation testing skills using tools like Selenium, Java, Python, or C#;
  • Ability to conduct client training sessions;
  • Preferably possess knowledge in SQL.



  • Experience with Automation, Performance, and API testing expertise;
  • Develop automated test scripts, collaborate on testing requirements, and mentor team members;
  • Design and implement performance test strategies, integrate with CI/CD, and analyze system architecture;
  • Proficient in designing, developing, and executing automated tests for APIs;
  • Ensure API changes align with system requirements and stay updated on industry trends.



  • Private health care;
  • 5 days of Sick Leave per year;
  • A chance to work with an outstanding team of people;
  • Very dynamic work environment with multiple projects in the pipeline;
  • Competitive salary;
  • Great environment for personal and professional development;
  • Opportunities for additional professional training and certification;
  • Encouragement of innovation and questioning the status quo, sharing ideas and knowledge;
  • Private health insurance;
  • Parking;
  • Fun room;
  • Gym.