Damaris Nzilani

Key Skills

Software

Appen

Telus

Remotasks

Toloka

Top Subject Matter

General AI/ML Dataset Preparation

Speech and Text AI Training

Image and Audio Machine Learning Tasks

Top Data Types

Image

Text

Audio

Document

Top Task Types

Classification

Object Detection

Transcription

Bounding Box

Segmentation

Freelancer Overview

AI Data Annotation Specialist. Core strengths include Appen, TELUS, and Remotasks. Education includes Bachelor of Information Technology, University of Nairobi (2022) and Kenya Certificate of Secondary Education, Pangani High School (2021). AI-training focus includes data types such as Image, Text, and Audio and labeling workflows including Classification, Object Detection, and Transcription.

Labeling Experience

AI Data Annotation Specialist

AppenImageClassificationObject Detection

As an AI Data Annotation Specialist at Appen, I annotated both visual and text datasets to facilitate accurate AI/ML model training. I focused on tagging objects, categories, and providing contextual labeling details with high accuracy. Rigorous review protocols were followed to consistently maintain accuracy metrics above 95%. • Labeled images and text using software guidelines • Maintained strong compliance with project accuracy standards • Tagged and categorized objects and contextual information • Contributed to high-quality AI dataset preparation.

As an AI Data Annotation Specialist at Appen, I annotated both visual and text datasets to facilitate accurate AI/ML model training. I focused on tagging objects, categories, and providing contextual labeling details with high accuracy. Rigorous review protocols were followed to consistently maintain accuracy metrics above 95%. • Labeled images and text using software guidelines • Maintained strong compliance with project accuracy standards • Tagged and categorized objects and contextual information • Contributed to high-quality AI dataset preparation.

2024 - Present

Data Labeler

TelusAudioTranscriptionClassification

As a Data Labeler at TELUS International AI, I performed labeling tasks focused on speech and textual data. My work required strict adherence to structured guidelines to ensure consistent and reliable dataset annotations. Efforts were made to enhance data quality through systematic reviews and timely corrections. • Carried out audio transcription for speech datasets • Labeled and classified text data following precise instructions • Reviewed datasets to improve annotation consistency • Supported overall dataset quality for model accuracy.

As a Data Labeler at TELUS International AI, I performed labeling tasks focused on speech and textual data. My work required strict adherence to structured guidelines to ensure consistent and reliable dataset annotations. Efforts were made to enhance data quality through systematic reviews and timely corrections. • Carried out audio transcription for speech datasets • Labeled and classified text data following precise instructions • Reviewed datasets to improve annotation consistency • Supported overall dataset quality for model accuracy.

2023 - 2023

Freelance Annotator

RemotasksImageBounding BoxSegmentation

Serving as a Freelance Annotator for Remotasks and Toloka AI, I labeled object images utilizing bounding box and segmentation methodologies. My responsibilities also included audio transcription and the recognition of speakers within various datasets. Consistently, high-quality projects were submitted within strict timelines. • Employed bounding box and segmentation on images • Conducted transcription for audio datasets • Carried out speaker recognition tasks for audio • Completed annotation projects on schedule.

Serving as a Freelance Annotator for Remotasks and Toloka AI, I labeled object images utilizing bounding box and segmentation methodologies. My responsibilities also included audio transcription and the recognition of speakers within various datasets. Consistently, high-quality projects were submitted within strict timelines. • Employed bounding box and segmentation on images • Conducted transcription for audio datasets • Carried out speaker recognition tasks for audio • Completed annotation projects on schedule.

2022 - 2023

Education

Work History