Hamidah Mugerwa

Key Skills

Software

Sama

Other

Top Subject Matter

No subject matter listed

Top Data Types

Text

Video

Audio

Top Label Types

Classification

Bounding Box

Polygon

Polyline

Cuboid

Translation Localization

Audio Recording

Transcription

Freelancer Overview

I am an experienced Trust and Safety professional with over three years specializing in data annotation, content moderation, and AI-driven risk operations. My expertise centers on labeling and validating large datasets for machine learning, ensuring high-quality training data that improves model accuracy and aligns with evolving trust and safety policies. I have managed escalated and high-risk content across domains such as child safety, hate speech, misinformation, and graphic content, particularly within the Sub-Saharan African market. My strong analytical skills, attention to detail, and commitment to compliance have allowed me to maintain rigorous quality assurance standards, provide actionable feedback, and support model evaluation experiments. I am passionate about using data to safeguard online communities and contribute to the development of ethical, scalable AI solutions.

Labeling Experience

Trust & Safety Quality Analyst - AI Data Annotation Specialist

SamaTextClassification

I performed data annotation on large datasets to improve the accuracy of machine learning models. My tasks included precise and consistent tagging of sensitive and high-risk online content aligned with evolving safety and compliance needs. Through ongoing collaboration with data scientists, I contributed to calibration and model evaluation initiatives. • Validated data integrity and flagged policy edge cases to refine content safety protocols. • Maintained annotation quality assurance in compliance with internal and industry standards. • Adapted annotation strategies aligned with evolving trust & safety policies and regulatory requirements. • Created documentation and visual samples to accelerate new team member onboarding.

I performed data annotation on large datasets to improve the accuracy of machine learning models. My tasks included precise and consistent tagging of sensitive and high-risk online content aligned with evolving safety and compliance needs. Through ongoing collaboration with data scientists, I contributed to calibration and model evaluation initiatives. • Validated data integrity and flagged policy edge cases to refine content safety protocols. • Maintained annotation quality assurance in compliance with internal and industry standards. • Adapted annotation strategies aligned with evolving trust & safety policies and regulatory requirements. • Created documentation and visual samples to accelerate new team member onboarding.

2023

AI Data Annotation Specialist

SamaVideoBounding BoxPolygon

I worked on Autonomous Vehicle projects at Sama, supporting the development of self driving car systems through high quality data annotation and validation. My role focused on accurately labeling and reviewing sensor data such as camera and LiDAR inputs, including objects like vehicles, pedestrians, cyclists, traffic signs, and lane markings.

I worked on Autonomous Vehicle projects at Sama, supporting the development of self driving car systems through high quality data annotation and validation. My role focused on accurately labeling and reviewing sensor data such as camera and LiDAR inputs, including objects like vehicles, pedestrians, cyclists, traffic signs, and lane markings.

2023 - 2025

Transcriptionist/ Translation

OtherAudioTranslation LocalizationAudio Recording

Worked on Media & Entertainment projects involving transcription and translation of audio and video content. My responsibilities included accurately transcribing spoken content, translating between languages while maintaining meaning and tone, and following quality guidelines to ensure clear, error free outputs for training and content review purposes.

Worked on Media & Entertainment projects involving transcription and translation of audio and video content. My responsibilities included accurately transcribing spoken content, translating between languages while maintaining meaning and tone, and following quality guidelines to ensure clear, error free outputs for training and content review purposes.

2022 - 2022

Education

Work History