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John Njoroge

John Njoroge

AI Data Annotator - NLP & LLM Training

KENYA flag
Kikuyu, Kenya
$10.00/hrEntry LevelAppenAxiom AIClickworker

Key Skills

Software

AppenAppen
Axiom AI
ClickworkerClickworker
CloudFactoryCloudFactory
Img Lab
LabelboxLabelbox
MercorMercor
TolokaToloka
TelusTelus
Other

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
DocumentDocument
ImageImage
TextText
VideoVideo

Top Label Types

Audio Recording
Bounding Box
Classification
Cuboid
Data Collection
Diagnosis
Emotion Recognition
Evaluation Rating
Mapping
Object Detection
Polygon
Question Answering
Segmentation
Text Generation
Text Summarization
Transcription
Translation Localization

Freelancer Overview

I am a detail-oriented AI data contributor with hands-on experience in data annotation, evaluation, and fact-checking for AI training workflows. My background includes evaluating and annotating AI-generated outputs to ensure accuracy, clarity, and compliance with detailed instructions, as well as performing structured web research to verify information. I am skilled in prompt refinement, analytical writing, and guideline adherence, and have worked extensively with annotation platforms such as UHRS, Toloka, and Microworkers-type systems. I excel at identifying inconsistencies and providing structured feedback to improve large language model outputs, consistently delivering high-quality results in remote, collaborative environments.

Entry LevelEnglishSwahiliFrenchGerman

Labeling Experience

No Data Labeling experience added

John N. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

J

Jomo Kenyatta University of Agriculture and Technology

Bachelor of Science, Corporate Communication and Management

Bachelor of Science
2022 - 2025
K

Kiambu Polytechnic

College Certificate, Information Technology

College Certificate
2023 - 2024

Work History

T

Toloka AI

Remote Data Annotator and Labelling

Kikuyu
2024 - 2025