# Lead QA Engineer (AI Voice) Source: https://realanalystjobs.com/job/lead-qa-engineer-ai-voice-lingaro-7b05a4d8 Lead QA Engineer (AI Voice) at Lingaro, an on-site role based in Poland. Experience level: 6 Years. Posted on 5 November 2026, read from Lingaro's own careers page (Lever), which RealAnalystJobs re-checks daily and removes the role when it closes. Updated 15 November 2026. ## Key facts - Company: [Lingaro](https://realanalystjobs.com/companies/lingaro) - Location: Poland - Work mode: On-site - Posted: Nov 5, 2026 - Employment type: Full time - Experience level: 6 Years - Source: Lingaro's careers page (Lever), re-checked daily Skills: [Python](https://realanalystjobs.com/skills/python), AWS, Azure ## About this role 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. What you'll be doing • Design the voice AI test strategy and process, from speech input through speech recognition (ASR), the LLM, tools and integrations, to speech output. • Define the automation approach and how it scales, including multilingual coverage of around 100 languages. • Test both predictable behaviour (intents, routing, integrations) and non-deterministic AI behaviour. • Evaluate prompts and LLM responses, using test datasets and scoring criteria. • Lead UAT: planning, scenarios, test data, coordination of business testers and sign-off recommendation. • Gather business acceptance criteria and turn them into measurable targets. • Own defect and risk management, and give release go/no-go recommendations. • Replan and communicate options when development is delayed. • Challenge stakeholders on readiness and quality, and mentor the Regular engineer. What we're looking for • At least 6 years of experience in software QA. • At least 2 years of experience in testing voice agents or conversational AI in live delivery. • Has led E2E and UAT, and worked as the lone or lead QA with limited guidance. • Experience in international or distributed teams. • Voice AI testing: speech recognition and speech output, latency, interruptions, accents, noise. • Voice quality metrics such as word error rate, intent accuracy and task completion. • Practical understanding of how LLMs work and fail. Deep LLM engineering is not needed. • Test automation in Python or JavaScript/TypeScript, with CI/CD and API testing (e.g. Postman). • Use of cloud speech services (Azure, Google, AWS or similar) to generate test calls. • Practical experience with Jira or Azure DevOps, and a test management tool. • Practical experience with troubleshooting from logs, transcripts and call recordings. • 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. • Structured, recommendation-first communication with technical and business stakeholders. • English at least B2. We offer • 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. Description from Lingaro's public careers feed, reproduced so you can read the role here. Apply on the company's own site; Real Analyst Jobs never submits anything for you. ## How to apply Open [this role on Real Analyst Jobs](https://realanalystjobs.com/job/lead-qa-engineer-ai-voice-lingaro-7b05a4d8) and use Apply now there to reach the employer's application. The listing is re-checked against Lingaro's careers page daily and removed when it closes. ## Lingaro 10 open analyst roles on Real Analyst Jobs. [More roles at Lingaro](https://realanalystjobs.com/companies/lingaro) ## More like this ### Other open roles at Lingaro - [RGM Data Analyst](https://realanalystjobs.com/job/rgm-data-analyst-lingaro-bc196bae), Europe - [Supply Chain Senior Business Analyst](https://realanalystjobs.com/job/supply-chain-senior-business-analyst-lingaro-4fcc7825), Europe - [Solution Architect- Data & Analytics](https://realanalystjobs.com/job/solution-architect-data-and-analytics-lingaro-c07e4d8c), India (On-site) - [Business Analyst with Japanese](https://realanalystjobs.com/job/business-analyst-with-japanese-lingaro-1b175f5f), Europe - [SAP Data & Analytics Developer](https://realanalystjobs.com/job/sap-data-and-analytics-developer-lingaro-e2e783ff), Poland (On-site) - [Analyst job market report](https://realanalystjobs.com/analyst-job-market) - [What analyst roles pay](https://realanalystjobs.com/blog/data-analyst-salaries) ## Sources and links - [This role on Real Analyst Jobs](https://realanalystjobs.com/job/lead-qa-engineer-ai-voice-lingaro-7b05a4d8) - [Lingaro on Real Analyst Jobs](https://realanalystjobs.com/companies/lingaro) - [All analyst jobs](https://realanalystjobs.com/jobs)