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J

Jenipher Nyandika

AI Trainer / Data Annotation Specialist

Kenya flagKericho, Kenya
$25.00/hrExpertDon T Disclose

Key Skills

Software

Don't disclose

Top Subject Matter

Generalist topics
AI model benchmarking

Top Data Types

TextText

Top Task Types

Prompt Response Writing SFT

Freelancer Overview

Analytical AI trainer and healthcare professional with 2+ years of experience in data annotation, prompt engineering, and clinical operations. Proven ability to communicate complex topics clearly while maintaining exceptional attention to detail and critical thinking skills. Comfortable working independently with evolving task guidelines across diverse content types. Professional Experience AI Trainer / Data Annotation Specialist Various Platforms Core Skills: Prompt engineering, AI output evaluation, data labeling, quality standards Remote 2025 – Present Created base prompts across generalist topics for large language model training and supervised fine-tuning Reviewed and revised AI-generated responses for clarity and accuracy, maintaining 98% accuracy rate across thousands of micro-tasks. Developed prompt-response iterations using variations in length and style for diverse content types Applied consistent quality standards and contributed to benchmarking efforts by identifying failure points in model responses.

ExpertEnglish

Labeling Experience

AI Trainer / Data Annotation Specialist

TextPrompt Response Writing SFT
As an AI Trainer and Data Annotation Specialist, I created and refined base prompts for large language model (LLM) training. I supervised fine-tuning workflows and evaluated AI-generated responses for clarity, accuracy, and adherence to task guidelines. I applied stringent quality standards to support benchmarking and failure identification in AI responses. • Developed prompt-response iterations across diverse content types. • Maintained a 98% accuracy rate reviewing thousands of micro-tasks. • Supported quality control and contributed to LLM training dataset creation. • Collaborated across platforms using internal/proprietary tooling for annotation and evaluation.

As an AI Trainer and Data Annotation Specialist, I created and refined base prompts for large language model (LLM) training. I supervised fine-tuning workflows and evaluated AI-generated responses for clarity, accuracy, and adherence to task guidelines. I applied stringent quality standards to support benchmarking and failure identification in AI responses. • Developed prompt-response iterations across diverse content types. • Maintained a 98% accuracy rate reviewing thousands of micro-tasks. • Supported quality control and contributed to LLM training dataset creation. • Collaborated across platforms using internal/proprietary tooling for annotation and evaluation.

2025 - Present

Education

D

DeepLearning.AI

Certificate, Artificial Intelligence

Certificate
2025 - 2025
U

University of Kabianga

Bachelor of Science, Clinical Medicine (Community Health)

Bachelor of Science
2019 - 2022

Work History

N

Nairobi County Government Health Services

Registered Nurse

Nairobi
2023 - Present
V

Various Platforms

Data annotator/aI trainer

Kericho
2022 - Present