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Dennis Mwaura

Dennis Mwaura

AI Data Annotator / QA Evaluator (Freelance)

Kenya flagNairobi, Kenya
$5.00/hrIntermediateTolokaRemotasksAppen

Key Skills

Software

TolokaToloka
RemotasksRemotasks
AppenAppen
ClickworkerClickworker
iMeritiMerit

Top Subject Matter

AI model training and evaluation
AI model training and review
Legal Services & Contract Review

Top Data Types

ImageImage
VideoVideo
3D Sensor

Top Task Types

Classification
Bounding Box
Segmentation
Polygon
Point Key Point
Cuboid
Text Generation
Transcription
Data Collection

Freelancer Overview

AI Data Annotator / QA Evaluator (Freelance). Core strengths include Toloka and Remotasks. Education includes High School Diploma, N/A (2020). AI-training focus includes data types such as Text and labeling workflows including Classification.

IntermediateEnglish

Labeling Experience

Remotasks

AI Task Contributor (Freelance)

RemotasksTextClassification
As a freelance AI Task Contributor at Remotasks, I performed data annotation and review on textual datasets for AI training initiatives. I consistently maintained accuracy and identified errors or edge cases during the labeling process. My contributions aided in refining AI outputs and improving model performance. • Labeled and reviewed various types of text data as part of AI training projects. • Detected and reported edge cases and critical errors in AI-generated content. • Followed detailed project instructions to ensure task consistency. • Supported the quality control process of AI systems through meticulous review.

As a freelance AI Task Contributor at Remotasks, I performed data annotation and review on textual datasets for AI training initiatives. I consistently maintained accuracy and identified errors or edge cases during the labeling process. My contributions aided in refining AI outputs and improving model performance. • Labeled and reviewed various types of text data as part of AI training projects. • Detected and reported edge cases and critical errors in AI-generated content. • Followed detailed project instructions to ensure task consistency. • Supported the quality control process of AI systems through meticulous review.

Present
Toloka

AI Data Annotator / QA Evaluator (Freelance)

TolokaTextClassification
As a freelance AI Data Annotator and QA Evaluator at Toloka AI, I annotated and labeled textual datasets to enhance machine learning model accuracy. My work involved evaluating AI-generated content for quality, relevance, and adherence to specific guidelines. I demonstrated strict compliance with project instructions and maintained consistent, high performance throughout all labeling tasks. • Annotated and classified large volumes of text data for AI model improvement. • Conducted evaluations to ensure output relevance and correctness. • Utilized detailed guidelines to guarantee annotation consistency. • Focused on content validation and error identification in textual information.

As a freelance AI Data Annotator and QA Evaluator at Toloka AI, I annotated and labeled textual datasets to enhance machine learning model accuracy. My work involved evaluating AI-generated content for quality, relevance, and adherence to specific guidelines. I demonstrated strict compliance with project instructions and maintained consistent, high performance throughout all labeling tasks. • Annotated and classified large volumes of text data for AI model improvement. • Conducted evaluations to ensure output relevance and correctness. • Utilized detailed guidelines to guarantee annotation consistency. • Focused on content validation and error identification in textual information.

Present

Education

N

N/A

High School Diploma, General Studies

High School Diploma
2020 - 2020

Work History

M

Macau Entertainment Limited

Customer Service

Nairobi
2024 - 2025