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Maria Jose Merino Roman

Maria Jose Merino Roman

Freelance LLM/AI Trainer – Prompt Design & Response Evaluation (Writing & Recording) and Data Annotation Specialist

SPAIN flag
Madrid, Spain
$25.00/hrExpertLionbridgeRemotasksScale AI

Key Skills

Software

LionbridgeLionbridge
RemotasksRemotasks
Scale AIScale AI
TelusTelus
Other
Don't disclose

Top Subject Matter

General Domain Expertise
Linguistics Domain Expertise
Multilingual AI

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

Prompt Response Writing SFT
Classification
RLHF
Fine Tuning
Text Summarization
Question Answering
Evaluation Rating
Text Generation

Freelancer Overview

LLM/AI Trainer with hands-on experience designing and recording high-quality prompt–response pairs to rigorously challenge and evaluate AI models. Skilled in assessing and rating AI-generated outputs using structured rubrics, reinforcement learning from human feedback (RLHF) principles, and comparative analysis between raw model responses and human-refined outputs. Adept at identifying strengths, weaknesses, and edge cases in model behavior to improve performance, alignment, and reliability, with a strong focus on clarity, consistency, and measurable quality standards. Experienced linguist and translator with a strong track record of delivering high-quality language solutions for leading multinational organizations, including Microsoft, Amazon, Kraken, Slack, Medtronic, Lenovo, Twitch, Agilent, DocuSign, MathWorks, Meetup, PeopleSoft, Oracle, Bayer, Schneider Electric, Laureate International Universities (Laureate Education), Boston Scientific, and Career Cruising. Proven expertise in adapting content across industries and audiences, ensuring linguistic accuracy, cultural relevance, and consistency while meeting the standards and expectations of global brands.

ExpertEnglishSpanish

Labeling Experience

Freelance LLM/AI Trainer – Prompt Design & Response Evaluation (Writing & Recording) and Data Annotation Specialist

OtherTextPrompt Response Writing SFT
I have worked extensively recording and creating prompts and responses to train and challenge LLM/AI models in various domains. My responsibilities included prompt engineering, prompt-response evaluation, and refinement of AI outputs according to rubrics and RLHF protocols. I was involved in classification, calibration, validation, and comparative evaluation of AI model results. • Reviewed and refined prompts to align with AI training guidelines • Validated language inclusivity and avoidance of cultural or social biases • Performed data tagging, annotation, and offensive term list creation • Engaged in RLHF and evaluation of model versus human outputs

I have worked extensively recording and creating prompts and responses to train and challenge LLM/AI models in various domains. My responsibilities included prompt engineering, prompt-response evaluation, and refinement of AI outputs according to rubrics and RLHF protocols. I was involved in classification, calibration, validation, and comparative evaluation of AI model results. • Reviewed and refined prompts to align with AI training guidelines • Validated language inclusivity and avoidance of cultural or social biases • Performed data tagging, annotation, and offensive term list creation • Engaged in RLHF and evaluation of model versus human outputs

2006 - Present

Education

I

Instituto Universitario de Lenguas Modernas y Traductores (Universidad Complutense de Madrid)

Master of Arts, English-Spanish Translation

Master of Arts
1992 - 1994
F

Facultad de Filología (Universidad Hispalense de Sevilla)

Bachelor of Arts, English Philology

Bachelor of Arts
1987 - 1992

Work History

P

Peoplesoft

Translator and Localization Specialist

Madrid
1998 - 2005
M

Me&Ta

Linguistic Quality Assurance Team Leader

Madrid
1993 - 1998