Mary N.

Key Skills

Software

Sama

iMerit

Remotasks

Top Subject Matter

AI training data for content moderation and model evaluation (Meta/Facebook projects).

AI training data for model optimization and quality assurance (Meta/Facebook).

AI training data for model optimization and evaluation (Meta/Facebook).

Top Data Types

Text

Image

Video

Document

Top Task Types

Classification

Bounding Box

Segmentation

Point/Key Point

Object Detection

Text Generation

Question Answering

Text Summarization

Transcription

Data Collection

Prompt + Response Writing (SFT)

Evaluation/Rating

Entity (NER) Classification

Freelancer Overview

AI Data Annotator Expert / Data Operations Agent — SamaSource (now Sama) supporting Facebook (Meta).. Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Sama. Education includes First Aid Training, Samasource Kenya (2024) and Certificate in Hairdressing and Beauty, EzeshaPlus School (2021). AI-training focus includes data types such as Text, Image, and Video and labeling workflows including Classification.

Labeling Experience

AI Data Annotator Expert / Data Operations Agent — SamaSource (now Sama).

SamaVideoClassification

Annotated and labeled large-scale video datasets to support the training and optimization of machine learning and AI models. Reviewed AI-generated outputs to detect errors, inconsistencies, and bias-related issues that could affect model performance. Completed data cleaning and verification activities to ensure video datasets were precise, consistent, and compliant with ethical requirements. • Perform high-volume data quality checks aligned with client specifications. • Track system performance issues and flag recurring problems for improved reliability. • Maintain documentation and audit trails for annotated video datasets. • Collaborate with QA teams and project leads to achieve accuracy and productivity goals.

2019 - Present

AI Data Annotator Expert / Data Operations Agent — SamaSource (now Sama).

SamaImageClassification

Annotated and labeled large-scale image datasets to support the training and optimization of machine learning and AI models. Reviewed AI-generated outputs to identify errors and inconsistencies and to help ensure fairness and accuracy. Conducted detailed data quality assurance to confirm datasets met client specifications and ethical AI guidelines. • Apply strict content and data policies when handling sensitive and confidential information. • Clean, organize, sanitize, and verify image data from multiple sources for usability. • Maintain documentation and audit trails for annotated image datasets. • Provide feedback on workflows and annotation guidelines to support continuous improvement.

2019 - Present

AI Data Annotator Expert / Data Operations Agent — SamaSource (now Sama) supporting Facebook (Meta).

SamaTextClassification

Annotated and labeled large-scale text datasets to support the training and optimization of machine learning and AI models. Reviewed AI-generated outputs to detect errors, inconsistencies, and potential bias to ensure accuracy and fairness. Performed data quality checks and followed ethical content/policy requirements while working with sensitive and confidential information. • Track and flag recurring AI system issues to improve reliability and effectiveness. • Clean, organize, sanitize, and verify raw data from multiple sources for precision and usability. • Maintain accurate documentation and audit trails for annotated datasets. • Collaborate with QA teams and project leads to meet productivity and quality benchmarks.

2019 - Present

Education

Work History