QA Engineer (AI Voice)

Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics.

• Run E2E, API, integration, regression and release tests on voice journeys across markets and configurations.
• Prepare test data and expected outcomes, and support business testers during UAT.
• Run and extend the automated suites and evaluation sets designed by the Senior.
• Log defects with clear reproduction steps and transcripts, and follow them to closure.
• Flag risks and blockers early.

• At least 3 years of experience in software QA.
• At least 1 year of experience in testing voice or conversational AI. 
• Hands-on voice agent testing: speech recognition and speech output basics, intents, latency, reading transcripts.
• Understanding why the same input can produce different AI outputs, and how to test for it.
• API testing and basic automation in Python or JavaScript/TypeScript.
• Jira or Azure DevOps and a test management tool.Troubleshooting from logs and transcripts.
• Clear written and verbal communication.
• Voice testing platforms (Hamming, Cekura, Coval, Botium) is a plus.
• Experience with LLM evaluation tools (Promptfoo, DeepEval, LangSmith) is a plus.
• Experience with Telephony basics (SIP, Twilio, Azure Communication Services) is a plus.
• ISTQB certification is a plus.
• Experience in Responsible-AI testing (PII, bias, safety) is a plus.
• Experience validating customer journeys across multiple markets is a plus.
• English at least B2.

• Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.
• “Office as an option” model. You can choose to work remotely or in the office.  
• Workation. Enjoy working from inspiring locations in line with our workation policy. 
• Great Place to Work® certified employer.
• Flexibility regarding working hours and your preferred form of contract.  
• Comprehensive online onboarding program with a “Buddy” from day 1.   
• Cooperation with top-tier engineers and experts.  
• Unlimited access to the Udemy learning platform from day 1.
• Certificate training programs. Lingarians earn 500+ technology certificates yearly. 
• Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.
• Grow as we grow as a company. 76% of our managers are internal promotions.  
• A diverse, inclusive, and values-driven community.   
• Autonomy to choose the way you work. We trust your ideas.  
• Create our community together. Refer your friends to receive bonuses.  
• Activities to support your well-being and health.
• Plenty of opportunities to donate to charities and support the environment. 
• Modern office equipment. Purchased for you or available to borrow, depending on your location.