OverviewIn this role you use linguistic expertise and AI know-how to build and evaluate language-learning solutions powered by AI.

You formalize linguistic phenomena, design prompts, and assemble datasets for training, evaluation, and calibration.

You investigate model behavior to identify and fix quality issues, and you collaborate with engineers and product teams to scale language-learning experiences across languages.

You stay current with NLP advances and contribute to reusable tooling and pipelines.

This is an opportunity to shape the future of education at general scale with human-led, AI-enhanced learning.

Compensaciones / Beneficiosmonthly allowance for lessons on Preply.com

Learning & Development budget time off for self-development equity health insurance free mental health support platforms

ResponsabilidadesFormalise linguistic phenomena into rules, taxonomies, and system requirements

Design, evaluate, and improve prompts for language-learning use cases

Build representative datasets with guidelines and QA processes

Evaluate model behaviour, investigate failures, and validate fixes across prompts, models, data, and processing





Use Python to process linguistic data and automate evaluation

Collaborate with engineers, PMs, learning designers, and other linguists to scale solutions across languages

Stay informed of best practices and advances in NLP and LLM research

Requisitos principales2–3 years of experience in Computational Linguistics, NLP, or related role

Hands-on experience with LLMs, including prompt design and evaluation

Proficiency in Python for data processing, evaluation, and automation

Strong understanding of datasets, annotation workflows, evaluation methods, and QA for AI systems

AI-native mindset and comfort using AI tools in problem solving and automation

Strong qualitative and quantitative analysis skills

Ability to collaborate in cross-functional teams

Degree in Linguistics, Computational Linguistics, NLP, Language Technology, or related field, or equivalent practical experience

Excellent command of English, spoken and written cross-functional collaboration analytical thinking attention to detail

Python

LLMs prompt design

📌 Senior Computational Linguist - Preply (Barcelona)
🏢 Preply
📍 Barcelona