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Raniel BetancourtRB
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Raniel Betancourt

@ranielbetancourt

Advanced AI Trainer at Invisible Technologies evaluating multimodal models and improving output quality, accuracy, and safety.

United States
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At Invisible Technologies, I train and evaluate large language models through image-based evaluations, multimodal tasks, red-teaming, and complex research campaigns.

I provide actionable feedback to improve model quality, factual accuracy, safety, and performance. My work includes SFT, RLHF, prompt-response engineering, and text-to-image alignment.

My psychology background informs a human-centered approach to model evaluation, including prompt-fidelity scoring, visual artifact isolation, image captioning, and synthetic data curation.

Alongside AI training, I’ve worked in freelance styling and photography for editorial and commercial clients, including Ocean Drive Magazine and Avessa Magazine. I also hold a Bachelor of Arts in Fashion Styling from Istituto Marangoni.

Experience

Work history, roles, and key accomplishments

IT
Current

Advanced AI Trainer

Invisible Technologies

Oct 2023 - Present (2 years 11 months)

Train and evaluate large language models through image-based evaluations, multimodal tasks, red-teaming, and complex research campaigns. Deliver precise, actionable feedback on model outputs to improve quality, factual accuracy, safety, and overall performance.

LR

Receptionist, Miami Swim Week

La Plague France Show Room

Jul 2021 - Jul 2024 (3 years)

Organized showroom schedule, checked in brands, documented details, and maintained brand records across four annual events.

FR

Stylist and Photographer

Freelance

Aug 2021 - Nov 2023 (2 years 3 months)

Delivered styling and photography services for editorial and commercial clients, including Ocean Drive Magazine and Avessa Magazine.

Lululemon logoLU

Educator

Lululemon

Aug 2021 - Jun 2022 (10 months)

Educated guests on product fabrics, features, fit, and brand culture. Created an inclusive, welcoming environment consistent with brand values.

TA

Verbal Branding Intern

The Arsenale

Sep 2020 - Dec 2020 (3 months)

Researched, developed, and presented product names for Fall 2020 and Spring 2021 merchandise launches. Crafted verbal branding for social media, website descriptions, and internal presentations.

University of Tampa logoUT

Assistant, Enrollment and Admissions Office

University of Tampa

Jan 2019 - Mar 2020 (1 year 2 months)

Managed the admissions email inbox and monitored correspondence between faculty, current students, and prospective students. Reviewed student applications for incomplete or missing documents and tracked incoming and outgoing packages.

Education

Degrees, certifications, and relevant coursework

Istituto Marangoni logoIM

Istituto Marangoni

Bachelor of Arts, Fashion Styling

Bachelor of Arts in Fashion Styling, completed in December 2022.

University of Tampa logoUT

University of Tampa

Bachelor of Arts, Psychology

Bachelor of Arts in Psychology with a minor in Criminology, completed in May 2020.

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