AI Quality Engineer | Horizons Team | Based in Europe

<h2><strong>AI Quality Engineer</strong></h2><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Join Hostinger, and we’ll grow fast! 🚀</strong></p><p style="min-height:1.5em">We’re shaping the future of online success — powered by AI and driven by people. With 900+ talented professionals and over 4 million clients in 150 countries, we help creators and entrepreneurs bring their ideas to life faster and easier than ever before.</p><p style="min-height:1.5em"><strong>Our mission:</strong> To provide tools that help individuals and small businesses succeed online faster and easier.</p><p style="min-height:1.5em"><strong>Our culture:</strong> Guided by<a target="_blank" rel="noopener noreferrer nofollow" class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu1v1w _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu1r31 _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b1r31 _4fpr8stv _5goinqa1 _f8pj13af _9oik1r31 _1bnxglyw _jf4cnqa1 _30l313af _1nrm1r31 _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" href="https://www.hostinger.com/principles"><strong><u> 10 company principles</u></strong></a></p><p style="min-height:1.5em"><strong>Our formula for success:</strong> Customer obsession, innovative products, and talented teams.</p><p style="min-height:1.5em"></p><h2><strong>Your role at Hostinger</strong></h2><p style="min-height:1.5em">Join <strong>Horizons</strong> - the team exploring and building AI-powered products that don’t have industry playbooks yet.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><p style="min-height:1.5em">As a <strong>Horizons</strong> <strong>Quality</strong> <strong>Engineer</strong>, 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.</p><p style="min-height:1.5em">You’ll operate in high ambiguity, where the product evolves weekly and the rules are still being written.</p><p style="min-height:1.5em">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.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><p style="min-height:1.5em">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.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><p style="min-height:1.5em"><strong>Curious to learn more? Connect with your team:</strong> <a target="_blank" rel="noopener noreferrer" class="postings-link" href="https://www.linkedin.com/in/rima-leitiene/">Rima Leitienė,</a> QA Lead</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><h2><strong>Your day-to-day</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Define success criteria for AI-driven features where no industry standards exist, and clarify what “correct” truly means.</p></li><li><p style="min-height:1.5em">Design and execute testing strategies for AI tools, including exploratory and adversarial testing to uncover failure modes.</p></li><li><p style="min-height:1.5em">Develop evaluation frameworks to measure AI behavior - accuracy, consistency, hallucination rate, edge-case handling, and stability.</p></li><li><p style="min-height:1.5em">Build and maintain testing datasets, validation pipelines, and experimentation frameworks.</p></li><li><p style="min-height:1.5em">Identify patterns in AI behavior, developing intuition around its strengths, weaknesses, and risk areas.</p></li><li><p style="min-height:1.5em">Act as the voice of quality strategy, bridging the gap between what we build and how we know it’s truly good.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div></li></ul><h2><strong>Your skills and experience</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">4+ years of experience in software quality engineering (experience with AI-powered products is a strong plus).</p></li><li><p style="min-height:1.5em">Strong critical thinking - you reason from first principles, not templates.</p></li><li><p style="min-height:1.5em">Experience in web testing and automation (Playwright, Cypress, Selenium, or similar), with strong programming skills (TypeScript is a plus) and confidence working with APIs, logs, debugging tools, and data.</p></li><li><p style="min-height:1.5em">Experience with API manual testing and automation (Postman, Rest Assured, Swagger, or similar tools).</p></li><li><p style="min-height:1.5em">Experience with Database (MySQL or similar).</p></li><li><p style="min-height:1.5em">Ability to define and measure quality beyond “it works,” including meaningful metrics and evaluation criteria.</p></li><li><p style="min-height:1.5em">Strong interest in how AI systems work under the hood, with the curiosity to quickly learn new tools and technologies.</p></li><li><p style="min-height:1.5em">Comfortable operating in ambiguity - no documentation, no prior art, no one to ask.</p></li><li><p style="min-height:1.5em">Proactive, analytical, and persistent, with strong communication skills in English.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div></li></ul><h2>What makes you stand out</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Hands-on experience testing LLM-based or AI-driven systems, including prompt engineering and working with evaluation datasets or benchmarking methods.</p></li><li><p style="min-height:1.5em">Strong understanding of AI failure modes (hallucinations, bias, drift, edge cases) and experience designing evaluation frameworks or internal quality standards.</p></li><li><p style="min-height:1.5em">Experience working in fast-paced, experimental environments where requirements evolve quickly.</p></li></ul><h2><strong>Benefits for you</strong></h2><p style="min-height:1.5em">🚀 360 Growth: We provide limitless learning opportunities: access to platforms like Reforge and CoachHub, global conferences, feedback culture, digital libraries, and industry-leading subscriptions. Advance your career with internal mobility, and grow with a team eager to share knowledge and support your success.</p><p style="min-height:1.5em">🎯 Freedom & responsibility: Work on your terms, whether from the comfort of home or anywhere in the world. With a home office budget, you can elevate your workspace. Enjoy the flexibility to manage your schedule while bringing your ideas to life in a fast-paced, dynamic environment.</p><p style="min-height:1.5em">💪 Wellness simplified: Your health comes first with company-provided sick days, 20 paid suspension days, Headspace subscriptions, and recharge leave. Participate in wellbeing-dedicated events and simply enjoy the balance of a lifestyle that prioritizes wellness.</p><p style="min-height:1.5em">🎉 Work hard - play hard: Celebrate your achievements with company events like Town Hall, Meet the Client initiatives, team-building experiences, and workations. Celebrate life’s big moments with milestone gifts for weddings, new parenthood, and graduations.</p><p style="min-height:1.5em"></p><h2><strong>Compensation</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Gross salary starting from 4500 EUR/month. The upper range depends on your experience and qualifications.</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div></li></ul><p style="min-height:1.5em">Get ready to take your personal and professional growth to new heights! Join Hostinger today and be part of our journey <strong>🚀</strong></p><p style="min-height:1.5em"><strong>Three. Two. Onboard</strong></p>