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Petronillah Mithamo

AI Trainer

KENYA flag
Nairobi, Kenya
$18.00/hrIntermediateOtherData Annotation TechLabelbox

Key Skills

Software

Other
Data Annotation TechData Annotation Tech
LabelboxLabelbox
OneFormaOneForma
RemotasksRemotasks
SuperAnnotateSuperAnnotate

Top Subject Matter

AI-generated content evaluation
Data annotation for AI and machine learning

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Classification
Segmentation
Object Detection
Question Answering
Text Summarization
Text Generation
Transcription
Data Collection

Freelancer Overview

AI Trainer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Professional Certificate, ALX Africa (2024). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

IntermediateEnglish

Labeling Experience

AI Trainer

OtherText
As an AI Trainer at Gtech Solutions, I assessed and refined AI-generated results to improve model accuracy and reliability. My responsibilities included quality control, evaluation, and structured feedback on AI outputs. I strengthened quality metrics by using clear guidelines and consistent methodologies. • Evaluated AI-generated text for accuracy and relevance. • Provided structured feedback to support continuous model improvement. • Applied quality control protocols for consistent data evaluation. • Recorded feedback and project outcomes in remote work conditions.

As an AI Trainer at Gtech Solutions, I assessed and refined AI-generated results to improve model accuracy and reliability. My responsibilities included quality control, evaluation, and structured feedback on AI outputs. I strengthened quality metrics by using clear guidelines and consistent methodologies. • Evaluated AI-generated text for accuracy and relevance. • Provided structured feedback to support continuous model improvement. • Applied quality control protocols for consistent data evaluation. • Recorded feedback and project outcomes in remote work conditions.

2025 - 2026

Data Annotator

OtherTextClassification
In my role as a Data Annotator, I analyzed and categorized large textual datasets using project-specific guidelines. I worked collaboratively in a remote environment to maintain high standards of accuracy and productivity. My workflow optimizations led to measurable efficiency improvements throughout the annotation process. • Classified and annotated text data according to quality standards. • Collaborated with team members to clarify project requirements. • Tracked annotation progress using proper records and data management. • Increased productivity by refining data handling techniques.

In my role as a Data Annotator, I analyzed and categorized large textual datasets using project-specific guidelines. I worked collaboratively in a remote environment to maintain high standards of accuracy and productivity. My workflow optimizations led to measurable efficiency improvements throughout the annotation process. • Classified and annotated text data according to quality standards. • Collaborated with team members to clarify project requirements. • Tracked annotation progress using proper records and data management. • Increased productivity by refining data handling techniques.

2024 - 2025

Education

A

ALX Africa

Professional Certificate, Digital Skills, Remote Work, and Technology Tools

Professional Certificate
2024 - 2024

Work History

P

Petso Technologies

Executive Virtual Assistant

Nairobi
2023 - 2024
F

Freelancer

Executive Technical Support

Nairobi
2020 - 2023