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John Gichuki

John Gichuki

AI Training Specialist / AI Model Trainer

KENYA flag
Nairobi, Kenya
$30.00/hrExpertAppenData Annotation TechImerit

Key Skills

Software

AppenAppen
Data Annotation TechData Annotation Tech
iMeritiMerit
MercorMercor
Micro1
MindriftMindrift
OneFormaOneForma
RemotasksRemotasks

Top Subject Matter

AI/Language Model Training & Evaluation
Mathematics and Statistic
Senior Data Scientist

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Fine Tuning
Bounding Box

Freelancer Overview

AI Training Specialist / AI Model Trainer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Master of Science, University of Nairobi (2022) and Bachelor of Science, University of Nairobi (2018). AI-training focus includes data types such as Text and labeling workflows including Fine-tuning.

ExpertSwahiliEnglish

Labeling Experience

AI Training Specialist / AI Model Trainer

TextFine Tuning
As an AI Training Specialist / AI Model Trainer, I designed and implemented workflows to annotate, classify, and validate data for language models and machine learning systems. My work included dataset curation, prompt engineering, and detailed evaluation of model performance. I collaborated in supervised learning pipelines and guided teams in ethical, responsible AI practices. • Improved model accuracy through structured annotation and dataset refinement. • Developed frameworks for prompt optimization and factual alignment. • Conducted AI outputs evaluation, including performance metric analysis. • Led junior annotators and facilitated knowledge transfer initiatives.

As an AI Training Specialist / AI Model Trainer, I designed and implemented workflows to annotate, classify, and validate data for language models and machine learning systems. My work included dataset curation, prompt engineering, and detailed evaluation of model performance. I collaborated in supervised learning pipelines and guided teams in ethical, responsible AI practices. • Improved model accuracy through structured annotation and dataset refinement. • Developed frameworks for prompt optimization and factual alignment. • Conducted AI outputs evaluation, including performance metric analysis. • Led junior annotators and facilitated knowledge transfer initiatives.

2024 - Present

Education

U

University of Nairobi

Master of Science, Computer Science

Master of Science
2020 - 2022
U

University of Nairobi

Bachelor of Science, Computer Science

Bachelor of Science
2014 - 2018

Work History

S

Samchi Group Limited

Data Analyst

Nairobi
2022 - 2023
U

University of Nairobi

Research Assistant – Data & AI Systems

Nairobi
2021 - 2022