hostinger - AI Quality Engineer | Horizons Team | Based in Europe

• As a Horizons Quality Engineer, you won’t just test features - you’ll define what “correct” means for AI systems that didn’t exist three months ago. This isn’t a traditional QE role with predefined test cases or stable requirements. • You’ll operate in high ambiguity, where the product evolves weekly and the rules are still being written. • Your impact will go beyond finding bugs - you’ll shape how we evaluate AI at Hostinger, define best practices, influence product decisions, and raise the quality bar for intelligent tools used by millions. • This role is for someone who sees ambiguity as opportunity, not chaos - someone who doesn’t wait for documentation, but creates it, and who builds confidence in the future of our AI products. • Curious to learn more? Connect with your team: Rima Leitienė, https://www.linkedin.com/in/rima-leitiene/ QA Lead • Define success criteria for AI-driven features where no industry standards exist, and clarify what “correct” truly means. • Design and execute testing strategies for AI tools, including exploratory and adversarial testing to uncover failure modes. • Develop evaluation frameworks to measure AI behavior - accuracy, consistency, hallucination rate, edge-case handling, and stability. • Build and maintain testing datasets, validation pipelines, and experimentation frameworks. • Identify patterns in AI behavior, developing intuition around its strengths, weaknesses, and risk areas. • Act as the voice of quality strategy, bridging the gap between what we build and how we know it’s truly good.