---
title: 'Lead QA Engineer (AI Voice) at Lingaro'
canonical: 'https://feeny.ai/job/lead-qa-engineer-ai-voice-lingaro-poland-zdqb8gzvsmj4'
type: 'job'
last_seen: '2026-11-08'
---

# Lead QA Engineer (AI Voice) at Lingaro

- **Company:** Lingaro
- **Location:** Poland
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-11-05
- **Last confirmed live:** 2026-11-08
- **Apply:** https://jobs.lever.co/lingarogroup/4847a13f-d355-4fd9-9e7f-0408b9ae14b4

## Job description

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.

## About Lingaro

## Company Overview
- **One-liner**: Global end-to-end data and AI partner to leading brands and enterprises, turning complex data into actionable insights and AI-driven automation.
- **Entity Type**: Privately Held (no public funding disclosures; bootstrapped growth assumed)
- **Headquarters**: Warsaw, Poland
- **Founded**: 2008
- **Founders**: Not publicly available

## Core Business
- **Primary industries**: IT Services and IT Consulting; Data & Analytics; AI Services
- **Target customers**: B2B, primarily large enterprises and global brands, including highly regulated industries (retail, CPG, supply chain, manufacturing)
- **Mission**: Help clients achieve more with data and AI by creating data-driven and AI-augmented experiences that deliver human impact and measurable business outcomes.

## Products & Services
- **Marketing & Commercial Analytics**: Marketing/media effectiveness, sales & channel execution, Revenue Growth Management (RGM), omnichannel commerce & content automation.
- **Intelligent & Resilient Supply Chain**: Demand planning, sensing & forecasting, manufacturing intelligence, inventory optimization, warehouse automation, logistics analytics.
- **Sustainability & Compliance**: Sustainable product intelligence & LCA, decarbonization & net zero pathway, compliance-grade reporting & risk management.
- **AI & GenAI**: Custom AI models, machine learning solutions, automation including GAIA (AI sales & customer support assistant).
- **Data Consulting**: Strategy development, governance frameworks, architecture design.
- **Technology Consulting & Advisory**: Digital transformation guidance, technology roadmaps.
- **Data Visualization**: Dashboards and reporting.
- **Learning Technology & Adoption**: Training programs, user adoption strategies (5x faster adoption with 7 accelerators).
- **Intelligent Operations & Support**: Managed services, 24/7 support, optimization.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Over 1,800 employees worldwide (homepage) / 1,092 according to LinkedIn (+3% YoY)
- **Notable Investors/Partners**: Partnerships with leading hyperscalers (not named); no external investors publicly listed.
- **Growth Signals**:
  - Recognized as a **Leader in ISG Provider Lens 2025** (Advanced Analytics and AI Services across Europe and the US).
  - **Fortune 100 Best Companies to Work For in Europe™** (2024).
  - **Great Place to Work®-certified** in Poland, Philippines, and India (2025).
  - **Best Workplaces™ in Asia** (2024).
  - Supports **75+ leading brands across 30+ countries**.
  - Workforce distributed across 25 countries; operations in 6 countries (Poland, US, Philippines, Singapore, Mexico, Switzerland).
  - Open positions visible on careers page (e.g., Data Engineer, AI DevOps, Supply Chain roles).

## Competitive Advantages
- **End-to-end data & AI services** – from strategy/advisory to implementation, adoption, and managed support.
- **Deep industry expertise** – especially in highly regulated sectors (retail, CPG, supply chain, sustainability).
- **AI adoption framework** – 5x faster adoption via proprietary accelerators and change management.
- **Human-centric approach** – combines design thinking, AI, and human creativity to build user-centric solutions.
- **Global delivery model** – 24/7 support across time zones with strong European roots and global scale.
- **Awards & recognition** – multiple Great Place to Work seals and ISG Leader status validates both workplace culture and service quality.

## Strategic Focus
- **Data and AI readiness** – helping organizations become “data-ready, AI-ready, and future-ready.”
- **Growth in AI & GenAI** – expanding custom model development and automation solutions like GAIA.
- **Supply chain resilience** – intelligent supply chain offerings as a key growth vertical.
- **Sustainability services** – compliance-grade reporting and decarbonization pathways for clients.
- **Geographic expansion** – continues to scale presence in the US, APAC, and Europe.

## Why Work Here
- **Culture**: Great Place to Work®- certified for multiple consecutive years; Fortune 100 Best Workplaces in Europe; Best Workplaces in Asia 2024.
- **Work environment**: Remote and hybrid roles available (e.g., many positions listed as “Remote — Full-time Poland”).
- **Growth & learning**: Strong focus on learning technology and adoption – internal training programs and career development.
- **Global team**: Collaboration across 6 countries and 25 nationalities; exposure to large enterprise clients.
- **Engineering culture**: Heavy emphasis on data engineering, AI/ML, cloud (GCP, Snowflake), and modern tech stacks.
- **Employee rating**: 3.8/5.0 (249 reviews on LinkedIn) with Culture rated 4.0, Work-Life 3.9, Career 3.7.

## Sources
1. [Lingaro Group About Page](https://lingarogroup.com/about)
2. [Lingaro LinkedIn Company Page](https://www.linkedin.com/company/lingaro)
3. [Lingaro Careers Page (Lever)](https://jobs.lever.co/lingarogroup)
4. [Lingaro Group Home Page](https://lingarogroup.com/home)
5. [Lingaro Executive Leadership Page](https://lingarogroup.com/about/executive-leadership-team)

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