Bryan Njoroge

Key Skills

Software

Mercor

Google Cloud Vertex AI

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Text

Video

Top Label Types

Fine Tuning

Evaluation Rating

Data Collection

Prompt Response Writing SFT

Audio Recording

Freelancer Overview

I am an experienced AI data annotator and automation specialist with over four years working on AI model training, data labeling, and quality assurance projects. My background includes hands-on annotation of text, sentiment, and image data, as well as structured evaluation of AI-generated responses using detailed rubrics. I have a strong track record of following complex guidelines to deliver high-accuracy outputs in remote, distributed environments. I am skilled in prompt engineering, dataset refinement, and quality assurance workflows, and have contributed to projects involving biometric identity verification and blockchain research. I am comfortable using a variety of annotation platforms, AI evaluation dashboards, and collaboration tools such as Slack, Notion, Trello, and Google Workspace, and have experience with basic Python and workflow automation. My focus is always on maintaining high standards of data integrity, accuracy, and compliance.

Labeling Experience

Web3 Research & AI Contributor

Google Cloud Vertex AITextFine TuningEvaluation Rating

As a Web3 Research & AI Contributor, I participated in beta testing and feedback cycles for AI and blockchain-based platforms. I performed structured data evaluations, quality checks, and assisted with dataset refinement and categorization. My work focused on enhancing training datasets and annotation accuracy. • Engaged in feedback cycles for AI outputs • Performed structured quality evaluations • Assisted in dataset organization and annotation • Helped streamline data refinement processes

As a Web3 Research & AI Contributor, I participated in beta testing and feedback cycles for AI and blockchain-based platforms. I performed structured data evaluations, quality checks, and assisted with dataset refinement and categorization. My work focused on enhancing training datasets and annotation accuracy. • Engaged in feedback cycles for AI outputs • Performed structured quality evaluations • Assisted in dataset organization and annotation • Helped streamline data refinement processes

2021

AI Data Annotator & Model Reviewer

MercorAudioFine TuningEvaluation Rating

As an AI Data Annotator & Model Reviewer, I evaluated AI-generated text responses using structured evaluation frameworks. I compared multiple model outputs, selected the best responses, and refined them to meet quality and safety standards. I performed text, sentiment, and structured labeling tasks across multiple datasets in high-volume environments. • Conducted LLM output ranking and instruction compliance checks • Carried out sentiment annotation and data categorization • Rewrote and improved subpar AI outputs for clarity and accuracy • Maintained high precision under strict guidelines

As an AI Data Annotator & Model Reviewer, I evaluated AI-generated text responses using structured evaluation frameworks. I compared multiple model outputs, selected the best responses, and refined them to meet quality and safety standards. I performed text, sentiment, and structured labeling tasks across multiple datasets in high-volume environments. • Conducted LLM output ranking and instruction compliance checks • Carried out sentiment annotation and data categorization • Rewrote and improved subpar AI outputs for clarity and accuracy • Maintained high precision under strict guidelines

2021

Education

Work History