Quality Control Engineer (AI & LLM Services)
A fantastic opportunity for Quality Control Engineer to join fast-growing deep-tech company, who provide hyper-efficient software to global companies across finance, energy, manufacturing and cybersecurity to gain an edge with quantum computing and artificial intelligence.
**This is initially a Fixed Term Contract - Hybrid from their site in Barcelona**
Responsibilities
* 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.
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.
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