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Robert Ugwuokorafor

Robert Ugwuokorafor

Data Annotation and AI Evaluation Specialist

Nigeria flagAba, Nigeria
$15.00/hrExpertGoogle Cloud Vertex AIEncordLabelbox

Key Skills

Software

Google Cloud Vertex AIGoogle Cloud Vertex AI
EncordEncord
LabelboxLabelbox
LionbridgeLionbridge
RemotasksRemotasks
Data Annotation TechData Annotation Tech

Top Subject Matter

AI-generated content
Prompt engineering
Multilingual (English, Igbo)

Top Data Types

TextText
DocumentDocument
ImageImage

Top Task Types

Question AnsweringQuestion Answering
Text SummarizationText Summarization
Fine-tuningFine-tuning
ClassificationClassification
SegmentationSegmentation
Object DetectionObject Detection
Text GenerationText Generation
Point/Key PointPoint/Key Point
PolylinePolyline

Freelancer Overview

Data Annotation and AI Evaluation Specialist. Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Claude AI. Education includes Bachelor of Engineering, Federal University of Technology, Owerri (2022). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

ExpertEnglish

Labeling Experience

Data Annotation and AI Evaluation Specialist

Text
Worked extensively with AI-generated text data to annotate, evaluate, and assess prompt responses. Responsible for label quality, adherence to complex guidelines, and maintaining annotation consistency across varied tasks. Used structured frameworks to improve AI model outputs and provide detailed quality feedback. • Regularly evaluated the accuracy, relevance, and safety of AI-generated content. • Performed prompt evaluation, sentiment analysis, and classification tasks for English and Igbo language data. • Compared and ranked multiple AI responses to select the most suitable output. • Used Claude AI for structured analysis and annotation of text-based prompts.

Worked extensively with AI-generated text data to annotate, evaluate, and assess prompt responses. Responsible for label quality, adherence to complex guidelines, and maintaining annotation consistency across varied tasks. Used structured frameworks to improve AI model outputs and provide detailed quality feedback. • Regularly evaluated the accuracy, relevance, and safety of AI-generated content. • Performed prompt evaluation, sentiment analysis, and classification tasks for English and Igbo language data. • Compared and ranked multiple AI responses to select the most suitable output. • Used Claude AI for structured analysis and annotation of text-based prompts.

Not specified

Education

F

Federal University of Technology, Owerri

Bachelor of Engineering, Chemical Engineering

Bachelor of Engineering
2022 - 2022

Work History

C

Comprehensive Senior Secondary School

Mathematics Teacher

Opobo Nkoro
2024 - 2025
T

Thompson And Grace Investment Ltd

Engineering Intern

Port Harcourt
2021 - 2021