Test Automation Engineer

Who we are: We are a leading multinational technology company, delivering strategic consulting and software engineering services tailored to clients’ needs. With a customer-centric approach and 600+ skilled professionals, we help clients achieve sustainable business performance through innovative solutions. As part of the SII Group, a global leader in ICT with 39+ years of experience, we leverage cutting-edge technology to exceed expectations. We are looking for: We are looking for a Software Test Engineer to develop a next-generation ED-137C validation and conformance testing tool for Voice over IP (VoIP) systems used in Air Traffic Control (ATC). What you will do: Design and develop ED-137C validation and conformance test cases using TTCN-3. Define and implement test scenarios for SIP, SDP and RTP communication. Develop dynamic test configurations involving multiple simultaneous voice streams. Simulate different ATC communication components and communication scenarios. Implement validation of aviation-specific ED-137C features such as PTT, squelch, SELCALL and radio receiver multicast. Develop and integrate TTCN-3 test ports and system adaptors. Implement low-level integration between the TTCN-3 test environment and physical/network interfaces. Work with C/C++ components required by the TTCN-3 runtime and implementation layer. Develop Python-based automation and supporting tools. Integrate automated testing into CI/CD pipelines. Implement test result analysis and automated test report generation. Investigate and troubleshoot SIP, SDP, RTP and voice communication issues. Contribute to the overall architecture and technical design of the testing platform. What you must have: Experience in test automation Good knowledge of C/C++ and Python Experience with TTCN-3 or other protocol testing frameworks Good understanding of SIP, SDP and RTP Experience with VoIP and real-time voice communication Knowledge of voice codecs and RTP streams Experience with network protocols and system integration Understanding of test ports, system adaptors and low-level interfaces Experience developing automated test cases and test scenarios Experience with CI/CD and test automation Ability to analyze network traces and troubleshoot communication issues Good understanding of black-box testing and protocol validation Good English communication skills What's in it for you: Extended compensation and benefits package Continuous learning opportunities to enhance your professional and soft skills A great working environment with people who put their heart, mind, and soul into everything they do and understand the importance of team spirit We really welcome open-minded and committed people: Eager to take on new challenges and learn new things; Who put their heart, mind, and soul into everything they do; Who enjoy sharing knowledge and understand the importance of team spirit. #LI-LN2 ***Only eligible candidates will be contacted to move forward in the recruitment process