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Fred Thomas

Fred Thomas

AI Trainer - Technology & Internet

KENYA flag
Nairobi, Kenya
$30.00/hrIntermediateCVAT

Key Skills

Software

CVATCVAT

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Label Types

Bounding Box
Point Key Point
Segmentation
Translation Localization

Freelancer Overview

I am a Computer Science graduate with hands-on experience in AI training data processes, including data labeling, annotation, and model evaluation. My background includes working on large-scale digital data projects, where I verified and validated structured datasets for accuracy and compliance. I am skilled in assessing AI-generated content for factual accuracy, logical consistency, and policy adherence, with a strong understanding of NLP fundamentals, RLHF concepts, and dataset annotation workflows. I am proficient in Microsoft Excel, Google Sheets, and basic Python for data handling, and have a keen eye for detail in quality assurance and error detection. I thrive in remote, deadline-driven environments and am passionate about contributing to the development of reliable AI systems through meticulous data evaluation and annotation.

IntermediateEnglish

Labeling Experience

CVAT

LLM Response Evaluation & Text Data Annotation Specialist

CVATTextBounding BoxPoint Key Point
Worked on structured text annotation and AI response evaluation tasks designed to improve large language model performance. Evaluated AI-generated responses for factual accuracy, coherence, clarity, logical consistency, bias detection, and policy compliance. Performed text classification, sentiment tagging, and intent labeling using detailed annotation guidelines. Compared multiple model outputs and ranked them based on quality, instruction adherence, and safety standards. Applied reinforcement learning from human feedback (RLHF) principles by providing structured ratings and feedback to enhance model alignment and reduce hallucinations. Maintained high consistency, accuracy, and strict adherence to project rubrics under deadline-driven environments.

Worked on structured text annotation and AI response evaluation tasks designed to improve large language model performance. Evaluated AI-generated responses for factual accuracy, coherence, clarity, logical consistency, bias detection, and policy compliance. Performed text classification, sentiment tagging, and intent labeling using detailed annotation guidelines. Compared multiple model outputs and ranked them based on quality, instruction adherence, and safety standards. Applied reinforcement learning from human feedback (RLHF) principles by providing structured ratings and feedback to enhance model alignment and reduce hallucinations. Maintained high consistency, accuracy, and strict adherence to project rubrics under deadline-driven environments.

2023 - 2024

Education

M

Mount Kenya University

Post-Graduate Diploma in Education, Education

Post-Graduate Diploma in Education
2020 - 2021
M

Meru University of Science and Technology

Bachelor of Science, Computer Science

Bachelor of Science
2013 - 2017

Work History

S

Self-Employed

Technical & Data Support Specialist

Kisii
2019 - 2022
N

National Census

ICT Expert

Kisii
2019 - 2019