Available to hire
I’m Alejandro, an AI Training and Evaluation Specialist with a passion for making language models more accurate and useful. I improve LLMs through diverse task types—Side-by-Side comparisons, Ranking, and Fine-tuning—while following detailed project guidelines to ensure high-quality outputs across domains. I’m also a Creative Writer and Producer with experience drafting scripts for short films and narrative-driven content, and building compelling stories that adapt to creative direction. I enjoy collaborating on projects from concept to delivery and bringing strong storytelling to video formats.
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
Spanish; Castilian
Fluent
English
Advanced
Work Experience
AI Training and Evaluation Specialist at SCA
January 1, 2023 - PresentRemote role focusing on training and evaluating LLMs via task-based benchmarks, including side-by-side comparisons, ranking, and data preprocessing for fine-tuning; reviewing contributor submissions to ensure quality and consistency; serving as a top reviewer across multiple projects; identifying and correcting inconsistencies or low-quality completions; maintaining confidentiality and strict data-handling protocols.
Creative Writer and Producer at Nous Live SL
January 1, 2021 - January 1, 2023Wrote original scripts for short films focusing on narrative structure, character development, and emotionally engaging dialogue; produced independent short films (scheduling, casting, on-set logistics); scripted and produced music videos, overseeing both creative and production phases; several music videos reached over one million views on YouTube, demonstrating strong audience engagement and storytelling.
AI Training and Evaluation Specialist at Scale AI
January 1, 2023 - PresentTrained and evaluated LLMs through tasks such as Side-by-Side comparisons, Ranking, and prompt rewriting. Followed detailed and varied project guidelines to ensure high-quality outputs across domains. Reviewed contributor submissions to ensure quality and consistency before client delivery. Selected as part of a top-performing reviewer team trusted with reviewing tasks across multiple key projects. Contributed to AI model improvement by identifying and correcting inconsistencies, unclear responses, or low-quality completions. Maintained confidentiality and adhered to strict data-handling protocols.
Education
Advanced Vocational Diploma in Audio Visual and Event Production at Escuela Superior de Imagen y Sonido Aceimar
September 13, 2020 - June 22, 2022Introduction to Artificial Intelligence (AI) at IBM
February 11, 2024 - April 21, 2024Fundamentals of Machine Learning and Artificial Intelligence at Coursera - AWS
May 11, 2025 - July 20, 2025Qualifications
Advanced Vocational Diploma in Audio Visual and Event Production
January 1, 2020 - January 1, 2022Fundamentals of Machine Learning and Artificial Intelligence
January 1, 2024 - January 27, 2026AWS Coursera Certificate
January 1, 2025 - January 27, 2026Industry Experience
Media & Entertainment, Software & Internet, Professional Services, Education, Other
Experience Level
Expert
Expert
Expert
Expert
Expert
Intermediate
Hire a Screenwriter
We have the best screenwriter experts on Twine. Hire a screenwriter in Valladolid today.