I’m looking for remote, mission-driven AI work where I can evaluate and improve LLM responses with RLHF, precise linguistic analysis, and rigorous fact-checking—supporting helpful, honest, harmless outputs.
Alba Hernández
@albahernandez
Bilingual Spanish - English. AI Content Evaluator and Language Specialist focused on RLHF and LLMs
What I'm looking for
I am a student of English philology in Extremadura, Spain.
I have experience tutoring children and teenagers in several subjects (but especially English) and as a freelance writer.
Regarding my experience with artificial intelligence, I’m an AI Content Evaluator and Language Specialist who blends human-in-the-loop training with deep linguistic expertise. I currently focus on improving Large Language Model (LLM) outputs so they are helpful, honest, and harmless.
In my recent freelance work, I used RLHF techniques to train and refine LLM responses. I combine prompt engineering with multi-turn conversation testing to assess reasoning quality and instruction-following, then I deliver detailed rationales to support model improvement.
I’m also highly focused on verification and quality assurance. I perform fact-checking of AI-generated content against reliable sources, ensuring accuracy, and I apply content moderation and guideline compliance to keep outputs aligned with project standards.
Alongside evaluation work, I contribute to language-focused research by assessing linguistic accuracy and cultural relevance for the Spanish market. I bring a careful, detail-oriented approach to syntax, semantics, and grammar across English and Spanish, paired with strong self-motivation and time management.
In addition, I also trained as an administrative assistant, so I am able to perform the tasks of the position such as keeping personal schedules of tasks and meetings, making invoices and delivery notes, buying and selling transactions, etc.
Experience
Work history, roles, and key accomplishments
AI Data Specialist
Independent Contractor
Sep 2025 - Present (9 months)
Utilized RLHF to train and refine LLMs, validating responses for helpfulness, honesty, and harmlessness through prompt engineering and multi-turn conversation testing. Performed fact-checking against reliable sources and authored detailed rationales to improve model quality and guideline compliance.
Education
Degrees, certifications, and relevant coursework
University of Extremadura
Bachelor’s Degree, English Philology (Grado en Estudios Ingleses)
2024 -
Currently pursuing a Bachelor's degree in English Philology at the University of Extremadura (Cáceres Campus), focusing on advanced English linguistics, literature, and grammar.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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