Quality Control Engineer

Quality Engineer | Tech Start up (€200m+ raised) | Immediate Start | Zaragoza (Hybrid)

A fantastic opportunity for a driven Engineer to join a leading Quantum AI company, who work on cutting-edge solutions that make AI faster, greener, and more accessible. You’ll be working alongside world-leading experts in quantum computing and AI, developing solutions that deliver real-world impact for global clients.

Responisibilities

- Ensure the reliability, robustness, and performance of our AI-driven solutions, applications, and products we deliver to clients.
- Collaborate with engineers, project managers, customers and product teams to define acceptance criteria.
- Evaluate system quality under varied operational conditions, ensuring scalability, latency, and data integrity meet project and client expectations.
- Create and standardize quality control and reporting across projects.
- Develop and maintain comprehensive test suites tailored to AI systems and ML workflows.
- Design and implement automated and manual testing frameworks for LLM-based applications, including chatbots, RAG systems, APIs, and data pipelines.
- Contribute to continuous improvement of QA processes, enforcing best practices in testing, documentation, and validation of ML and LLM pipelines.Act as a point of contact for quality validation, ensuring that final deliverables meet both technical and functional excellence standards.
- Act as a point of contact for quality validation, ensuring that final deliverables meet both technical and functional excellence standards.

Required Qualifications

- Master’s degree in Computer Science, Data Science, Software Engineering, or a related field.
- 2+ years of experience in software or ML project quality assurance, focusing on functional, performance, and automation testing.
- Demonstrated understanding of testing methodologies for AI/ML systems (e.g., reproducibility, model output validation, bias detection).
- Familiarity with modern ML and LLM workflows (Python, APIs, cloud ML platforms).
- Proficiency in English; Spanish or French is a plus.

And don’t worry if you’re not a perfect match — if you’re close and motivated to grow, you’re encouraged to apply.

In accordance with local employment laws, applicants must have current, valid authorisation to work in Spain at the time of application. We are unable to sponsor employment visas for this role. Applications from individuals without existing work authorisation for Germany cannot be considered.

If this sounds interesting and you'd like to learn more, click the link below to apply or email me with a copy of your CV at william@eu-recruit.com

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