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Martha Msingili

Martha Msingili

AI DATA SPECIALIST,ANNOTATOR, VOICE ACTOR ARTIST

TANZANIA flag
Tanzania, Tanzania
$20.00/hrIntermediateAppen

Key Skills

Software

AppenAppen

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
DocumentDocument
ImageImage

Top Label Types

Segmentation
Text Generation

Freelancer Overview

I have over 2 years of experience in data labeling and AI training data projects, working with diverse datasets including text, images, audio, and video. My expertise lies in accurately annotating data to improve machine learning model performance, maintaining high-quality standards, and ensuring consistency across large-scale projects. I am skilled in using annotation tools and platforms efficiently while adhering strictly to project guidelines and deadlines. I have contributed to multiple AI initiatives, including OCR transcription, sentiment analysis, object detection, and audio transcription projects. My attention to detail, strong analytical skills, and ability to quickly learn new tools have allowed me to deliver reliable, high-quality data annotations that enhance AI model accuracy. I am passionate about AI development and dedicated to supporting teams in building robust, data-driven solutions.

IntermediateEnglishSwahili

Labeling Experience

Appen

AI data annotation

AppenAudioSegmentation
Worked on diverse AI training data projects, including text, image, audio, and video annotation, to support machine learning model development. Responsibilities included labeling and categorizing data accurately, following detailed project guidelines, performing quality checks, and ensuring high consistency across large datasets. Contributed to projects such as OCR transcription, sentiment analysis, object detection, and speech-to-text datasets, helping improve model accuracy and reliability. Skilled in using annotation tools efficiently while meeting tight deadlines.

Worked on diverse AI training data projects, including text, image, audio, and video annotation, to support machine learning model development. Responsibilities included labeling and categorizing data accurately, following detailed project guidelines, performing quality checks, and ensuring high consistency across large datasets. Contributed to projects such as OCR transcription, sentiment analysis, object detection, and speech-to-text datasets, helping improve model accuracy and reliability. Skilled in using annotation tools efficiently while meeting tight deadlines.

2023 - 2025

Education

N

N/A

Certificate, Information Technology and Entrepreneurship (Sales and Marketing)

Certificate
2024 - 2025
N

N/A

High School Certificate, General Secondary Education

High School Certificate
2021 - 2023

Work History

F

freelancing platforms

Website Developer (Student)

Dar es Salaam
2025 - Present
R

RWS company

AI data specialist and annotator

Winnersh
2024 - Present