Senior QA Engineer

About the company:

Kiefer Tech, the technology arm of Kiefer, leverages over 12 years of engineering heritage from the Green Energy sector to deliver cutting-edge AI, robotics, and enterprise solutions across Greece and the EU. We build sovereign AI infrastructure that keeps data within EU borders, respect privacy, and delivers tangible business impact. Guided by our core values: innovation, quality, and long-term client partnerships, we create enterprise-grade AI infrastructure, the first true Greek Large Language Models, and intelligent automation solutions that empower organizations to thrive. Our strategic collaboration with NVIDIA combines sustainable infrastructure expertise with world-class AI technology, creating an ecosystem that fosters innovation, strengthens Greece’s technological sovereignty, and generates real impact across industries. Join us and help build the AI-powered world of tomorrow.

About the role

We are looking for a QA Engineer to establish scalable testing practices and ensure product reliability ahead of our enterprise launch.

What you will do:

• Build automated tests across backend and frontend systems.

• Implement unit, integration, and end-to-end testing.

• Create and maintain a testing pipeline for every PR.

• Introduce structured bug tracking and improve defect visibility.

• Perform manual validation when needed to ensure product quality.

• Partner with engineering to enforce tested, production-ready releases.

What you will need:

• Strong experience in automation testing.

• Hands-on knowledge of PyTest, Playwright, or similar frameworks.

• Experience testing Python and JavaScript applications.

• Ability to work with modern stacks including Supabase and Next.js.

• Experience designing QA processes in evolving environments.

• Comfortable working with multiple testing frameworks.

What is there for you:

• High-impact role influencing product stability.

• Ownership to shape QA practices from the ground up.

• Exposure to cutting-edge AI products.

• Career growth as the organization scales.

• Opportunity to dive into adjacent tech areas, such as DevOps and Security testing.