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J

Japeth Kitheka

Data Annotation Specialist, Appen

Kenya flagNAIROBI, Kenya
$25.00/hrExpertRemotasksAxiom AI

Key Skills

Software

RemotasksRemotasks
Axiom AI

Top Subject Matter

AI Model Training Data
AI Data Preparation and Tagging

Top Data Types

TextText
ImageImage

Top Task Types

Classification

Freelancer Overview

Data Annotation Specialist, Appen. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen and Remotasks. Education includes High School Diploma, Nairobi High School (2018). AI-training focus includes data types such as Text and Image and labeling workflows including Classification.

ExpertEnglish

Labeling Experience

Appen

Data Annotation Specialist, Appen

AppenTextClassification
As a Data Annotation Specialist at Appen, I labeled and annotated text, image, and audio data to support the development and training of AI models. My responsibilities included high-quality sentiment analysis, object recognition, and transcription project work. I ensured the accuracy and reliability of annotated datasets while collaborating with a global team. • Annotated sentiment and performed entity recognition on text data. • Carried out object detection and classification on image data. • Transcribed and labeled audio data for speech projects. • Maintained rigorous quality standards using Appen's proprietary platforms.

As a Data Annotation Specialist at Appen, I labeled and annotated text, image, and audio data to support the development and training of AI models. My responsibilities included high-quality sentiment analysis, object recognition, and transcription project work. I ensured the accuracy and reliability of annotated datasets while collaborating with a global team. • Annotated sentiment and performed entity recognition on text data. • Carried out object detection and classification on image data. • Transcribed and labeled audio data for speech projects. • Maintained rigorous quality standards using Appen's proprietary platforms.

2023 - Present
Remotasks

AI Contributor, Remotasks

RemotasksImageClassification
At Remotasks, I worked as an AI Contributor, engaging in image tagging and transcription of language data to enhance various AI applications. The role demanded precise attention to detail and adherence to client guidelines. My contributions directly improved model accuracy and performance. • Tagged and labeled objects within images for identification tasks. • Transcribed language data for machine learning models. • Followed strict project documentation and labeling protocols. • Delivered quality-controlled data outputs using Remotasks platform.

At Remotasks, I worked as an AI Contributor, engaging in image tagging and transcription of language data to enhance various AI applications. The role demanded precise attention to detail and adherence to client guidelines. My contributions directly improved model accuracy and performance. • Tagged and labeled objects within images for identification tasks. • Transcribed language data for machine learning models. • Followed strict project documentation and labeling protocols. • Delivered quality-controlled data outputs using Remotasks platform.

2024 - 2025

Education

N

Nairobi High School

High School Diploma, General Education

High School Diploma
2018 - 2018

Work History

A

Appen, Kenya —

Data Annotation Specialist

Location not specified
2023 - Present
R

Remotasks, Kenya —

AI Contributor

Location not specified
2024 - 2025