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Sabrina Martinez

Sabrina Martinez

AI Data Training Specialist - Creative Writing

USA flag
Fernley , Usa
$45.00/hrIntermediateInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

TextText
VideoVideo
AudioAudio

Top Label Types

RLHF
Fine Tuning
Prompt Response Writing SFT
Transcription
Text Generation
Emotion Recognition
Object Detection
Action Recognition
Tracking
Evaluation Rating

Freelancer Overview

I am an experienced AI data training specialist with a strong background in creative writing, quality control, and multimedia evaluation. My work includes hands-on roles in RHLF and SFT AI training, where I have fact-checked, labeled, and ranked AI-generated content for projects involving audio transcription, voiceover tasks, and character-driven dialogue for video game and narrative use cases. I have provided detailed feedback to data trainers, developed SOPs, and ensured content meets rigorous standards for humanization and creativity. My expertise spans text, image, and video annotation, and I am proficient with tools like SEMrush, WordPress, and Google Analytics. I thrive in collaborative, remote environments and am passionate about refining AI models to produce more accurate, human-like responses across diverse industries, including mental health, healthcare, technology, and entertainment.

IntermediateEnglish

Labeling Experience

Verity Labs - Creative Writing

Internal Proprietary ToolingTextText GenerationPrompt Response Writing SFT
The primary goal of this project is to create a humanized model that converse with users and roleplay a variety of characters, with an eventual use case being to create content for NPS or MCs in video games. I have worked on a wide range of tasks to help with this project. Including: - archetype profiles as a starting ground for character development - 5000+ word in-depth character profiles and dialogue samples for characters I created and developed - produced creative SFT tasks to show the model how to response in a human-like matter - Conducted RHLF annotations on model conversations - Participated in a variety of benchmark projects aimed to teach the model how to improve its logic and specific areas of improvement, including responding to questions, understanding human behavior, and responding to trolling.

The primary goal of this project is to create a humanized model that converse with users and roleplay a variety of characters, with an eventual use case being to create content for NPS or MCs in video games. I have worked on a wide range of tasks to help with this project. Including: - archetype profiles as a starting ground for character development - 5000+ word in-depth character profiles and dialogue samples for characters I created and developed - produced creative SFT tasks to show the model how to response in a human-like matter - Conducted RHLF annotations on model conversations - Participated in a variety of benchmark projects aimed to teach the model how to improve its logic and specific areas of improvement, including responding to questions, understanding human behavior, and responding to trolling.

2025

Verity Labs - Audio Tasks

Internal Proprietary ToolingAudioTranscription
In development of an ai video character, we would listen to user responses to the ai character, transcribed the user’s responses, and selected tags per the provided rubric.

In development of an ai video character, we would listen to user responses to the ai character, transcribed the user’s responses, and selected tags per the provided rubric.

2025 - 2025

Project #4 Invisible Technologies

Internal Proprietary ToolingTextRLHFFine Tuning
This project was for a major AI technology provider and involved evaluating references and accuracy of information in a variety of prompts, often involving shopping/best product requests, location requests, and other queries that require references to support. We would evaluate how well the model made product suggestions based on our online research and note any broken or irrelevant reference links.

This project was for a major AI technology provider and involved evaluating references and accuracy of information in a variety of prompts, often involving shopping/best product requests, location requests, and other queries that require references to support. We would evaluate how well the model made product suggestions based on our online research and note any broken or irrelevant reference links.

2025 - 2025

Project #3 Invisible Technologies

Internal Proprietary ToolingVideoText GenerationEmotion Recognition
Worked on a model for a well-known technology provider that would process video content and provide very detailed descriptions on what was happening in the video. There were very specific guidelines on how to describe subject movement, background changes, camera motion, objects, and settings. I was chosen as one of the first QAs to assist on shaping this project. As a quality analyst I would often need to edit the descriptions, provide in-depth feedback, and tag errors in the descriptions.

Worked on a model for a well-known technology provider that would process video content and provide very detailed descriptions on what was happening in the video. There were very specific guidelines on how to describe subject movement, background changes, camera motion, objects, and settings. I was chosen as one of the first QAs to assist on shaping this project. As a quality analyst I would often need to edit the descriptions, provide in-depth feedback, and tag errors in the descriptions.

2025 - 2025

Project #2 Invisible Technologies

Internal Proprietary ToolingTextRLHFPrompt Response Writing SFT
This project involved the development of a well-known Ai model. It blended RHLF and SFT, requiring us to write complex prompts, tag and evaluate the model response, and then rewriting to be a perfect, ideal response. There was a lot of freedom in the type of content that could be covered. I worked as both an annotator and QA on this project, producing high-quality tasks and providing edits and feedback to others.

This project involved the development of a well-known Ai model. It blended RHLF and SFT, requiring us to write complex prompts, tag and evaluate the model response, and then rewriting to be a perfect, ideal response. There was a lot of freedom in the type of content that could be covered. I worked as both an annotator and QA on this project, producing high-quality tasks and providing edits and feedback to others.

2024 - 2025

Education

U

University of Nevada Reno

Bachelor of Arts, Creative Writing

Bachelor of Arts
2016 - 2016

Work History

B

Beacon Media + Marketing

Freelance Writer

Reno
2023 - 2024
B

Beacon Media + Marketing

Content Manager

Reno
2021 - 2023