Overview

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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

📌 Lead Specialist, AI Scientist (Zaragoza)
🏢 MindMatch
📍 Zaragoza