Overview In this role you will design, build, and evaluate speech language models for spoken response understanding and automated scoring, supporting learner-facing practice and hiring-facing assessments. You will work with cross-functional teams to deliver accurate, fair, and scalable speech AI that provides real-time feedback and robust evaluation. You will lead end-to-end assessment design and ensure responsible AI practices across accents, dialects, and proficiency levels. This position offers the chance to shape practical, high-stakes language assessment products in production. Responsabilidades * Design and improve speech language models for understanding pronunciation, fluency, prosody, and communicative effectiveness * Develop and evaluate automated scoring and feedback pipelines for speaking tasks (learner-facing and hiring-facing) * Train, fine-tune, and evaluate acoustic, cascading, speech-to-speech, speech LMs, and scoring models (neural and LLM-based) * Design experiments and analyze performance, reliability,



and validity of assessments * Perform error analysis and reliability studies to guide model and product improvements * Collaborate with product, UX, and assessment scientists to integrate models into interactive experiences * Apply responsible AI to ensure fairness and transparency of feedback and scores * Support model monitoring and governance in production for high-stakes use * Act as technical lead for an AI conversational assessment product and translate goals into design decisions * Shape end-to-end conversational assessment design including prompts, turn-taking, scoring logic, and feedback timing * Balance validity, user experience, latency, and scalability in production designs Requisitos principales * Master’s or PhD in Computer Science, Electrical Engineering, Speech & Language Processing, Applied Linguistics, Language Assessment, or equivalent applied experience * Hands-on experience building speech recognition, spoken language understan

📌 Lead Specialist, AI Scientist (Madrid)
🏢 Pearson
📍 Madrid