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Butera Bruno

Butera Bruno

AI Data Annotator/AI Data Specialist – RWS (Remote)

Rwanda flagKigali, Rwanda
$12.00/hrEntry LevelCVATLabelimgLabelbox

Key Skills

Software

CVATCVAT
LabelImgLabelImg
LabelboxLabelbox
AppenAppen
CloudFactoryCloudFactory
Data Annotation TechData Annotation Tech
Internal/Proprietary Tooling

Top Subject Matter

AI model training and validation

Top Data Types

TextText
ImageImage
VideoVideo
AudioAudio

Top Task Types

Classification
Bounding Box
Prompt Response Writing SFT
Transcription

Freelancer Overview

I have hands-on experience as a Data Specialist (AI Data Annotator) at RWS, where I worked on training and improving AI systems through high-quality data labeling and evaluation. My work included annotating images with precise bounding boxes, categorizing video content, and simulating realistic multi-turn user–AI conversations. I also evaluated AI-generated outputs based on instruction accuracy, quality, and consistency, contributing to the development of more reliable and effective AI models. What sets me apart is my strong attention to detail, ability to follow complex guidelines, and experience working across multimodal data (text, image, video, and audio). I am skilled at maintaining high accuracy while handling large volumes of tasks and adapting quickly to different project requirements, making me effective in fast-paced AI training environments.

Entry LevelEnglishFrenchKinyarwanda

Labeling Experience

AI Data Annotator/AI Data Specialist – RWS (Remote)

OtherTextClassificationBounding Box
As an AI Data Annotator and AI Data Specialist at RWS, I worked on multimodal annotation tasks spanning text, image, video, and audio datasets. My responsibilities included simulating user–AI conversations, annotating images with bounding boxes, classifying videos, and evaluating AI-generated responses. I contributed to high-quality data labeling to improve AI model performance while following strict annotation guidelines. • Simulated multi-turn user–AI conversations for natural language model training. • Annotated images by drawing bounding boxes and creating background descriptions. • Categorized and classified videos into defined instructional content types. • Evaluated, corrected, and transcribed audio and text for training and validation purposes.

As an AI Data Annotator and AI Data Specialist at RWS, I worked on multimodal annotation tasks spanning text, image, video, and audio datasets. My responsibilities included simulating user–AI conversations, annotating images with bounding boxes, classifying videos, and evaluating AI-generated responses. I contributed to high-quality data labeling to improve AI model performance while following strict annotation guidelines. • Simulated multi-turn user–AI conversations for natural language model training. • Annotated images by drawing bounding boxes and creating background descriptions. • Categorized and classified videos into defined instructional content types. • Evaluated, corrected, and transcribed audio and text for training and validation purposes.

Present

Education

I

IFAK

Advanced Level Certificate, Mathematics, Physics, Computer Science

Advanced Level Certificate
2022 - 2025
I

IFAK

Ordinary Level Certificate, General Secondary Education

Ordinary Level Certificate
2019 - 2022

Work History

S

Sonya Export&Import

Strategy Advisor & IT Helpdesk Intern

Kigali
2024 - Present
R

RWS

AI Data Specialist

London
2025 - 2026