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Ann Wanjiru

Ann Wanjiru

AI Training Specialist (Freelance / Remote)

KENYA flag
Nairobi, Kenya
IntermediateAppenCVATAws Sagemaker

Key Skills

Software

AppenAppen
CVATCVAT
AWS SageMakerAWS SageMaker
DataturkDataturk
Google Cloud Vertex AIGoogle Cloud Vertex AI
LabelboxLabelbox
ProdigyProdigy
SuperviselySupervisely
Scale AIScale AI

Top Subject Matter

AI Training/Natural Language Processing

Top Data Types

ImageImage
VideoVideo
AudioAudio

Top Task Types

Text Generation
Segmentation
Point Key Point
Bounding Box
Text Summarization
Transcription
Classification
Object Detection

Freelancer Overview

I have hands on experience in AI training and data labeling, gained through both professional and freelance projects. In my role as an AI Training Specialist, I trained and evaluated AI models by reviewing outputs for accuracy, relevance, and tone, ensuring that responses aligned with user intent and quality standards. I also designed and refined prompts, annotated datasets, and labeled data for machine learning applications, performing thorough quality assurance to improve model performance. My experience spans Natural Language Processing tasks, content moderation, and user intent analysis, giving me a strong foundation in AI model evaluation and optimization. In addition to technical skills, I bring strong analytical, attention to detail, and communication skills, which allow me to provide actionable feedback and collaborate effectively . I have completed AI fundamentals training through Google Cloud, gaining knowledge in machine learning concepts, AI workflows, and prompt engineering. Combined with my background in customer support and technical troubleshooting, I am adept at bridging the gap between AI systems and human centered outcomes, making me well suited for roles in AI data annotation and training.

IntermediateSwahiliEnglish

Labeling Experience

AI Training Specialist (Freelance / Remote)

OtherText
As an AI Training Specialist, I was responsible for training and evaluating AI models for accuracy, relevance, and tone. I designed and refined prompts, annotated datasets, and performed quality assurance tasks to improve AI model outputs. I applied natural language processing concepts and collaborated remotely to enhance model performance. • Conducted prompt engineering and user intent analysis • Annotated and labeled large text datasets for machine learning • Performed detailed feedback and content evaluation on AI outputs • Used Google Docs, Sheets, and AI annotation frameworks for tasks

As an AI Training Specialist, I was responsible for training and evaluating AI models for accuracy, relevance, and tone. I designed and refined prompts, annotated datasets, and performed quality assurance tasks to improve AI model outputs. I applied natural language processing concepts and collaborated remotely to enhance model performance. • Conducted prompt engineering and user intent analysis • Annotated and labeled large text datasets for machine learning • Performed detailed feedback and content evaluation on AI outputs • Used Google Docs, Sheets, and AI annotation frameworks for tasks

2025 - Present

Education

U

University of Nairobi

Bachelor of Science, Information and Technology

Bachelor of Science
2015 - 2015

Work History

(

(Freelance / Remote)

AI Training Specialist Freelance

Nairobi
2025 - Present
F

Freelance

Chat Support Specialist

Nairobi
2024 - 2025