Alphonce O.

Key Skills

Software

Label Studio

CVAT

Top Subject Matter

NLP dataset creation and annotation

NLP annotation and RLHF support

Top Data Types

Text

Image

Top Task Types

RLHF

Freelancer Overview

AI Data Annotation Specialist. Core strengths include Label Studio and CVAT. Education includes Bachelor of Science, Pwani University. AI-training focus includes data types such as Text and labeling workflows including Entity (NER) and RLHF.

Labeling Experience

AI Data Annotation Specialist (NLP/RLHF)

CVATTextRLHF

Provided annotation support for NLP tasks and specialized RLHF data workflows as part of an AI dataset program. Ensured proper labeling, adherence to task requirements, and consistent formatting for training consumption. Focused on delivering high-quality labels to improve model learning outcomes. • Supporting NLP tasks including ranking • Assisting RLHF-related labeling workflows • Reviewing annotations for quality and guideline compliance • Ensuring consistent data labeling for downstream training

2023 - Present

AI Data Annotation Specialist

Label StudioText

Served as an AI Data Annotation Specialist, performing dataset annotation to support downstream AI model development and quality. Worked on validating and annotating NLP-related data and ensuring labels met expected guidelines and accuracy standards. Contributed to improving training-ready datasets through review and consistency checks. • Annotating and validating AI model datasets • Performing NLP task labeling and data quality assurance • Supporting ranking and RLHF-related data preparation • Ensuring high-quality labeled output for model training workflows

2023 - Present

Education

Work History