For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

LoginCreate account
Invite to Job
K
Kosisochukwu Ukwandu

Kosisochukwu Ukwandu

AI Trainer & Data Scientist | Multimodal RLHF Specialist

Nigeria flagAbuja, Nigeria
$20.00/hrIntermediateTolokaLionbridgeMicro1

Key Skills

Software

TolokaToloka
LionbridgeLionbridge
Micro1
MercorMercor
Other

Top Subject Matter

Technology & Software Development - Handle technical data analysis.
Generative AI (Multimodal & NLP) - Evaluates how AI models connect text prompts to images (Computer Vision) and text responses (NLP)
Business Intelligence & Analytics - Provide expert-level training for AI models used in corporate decision-making and financial reporting.

Top Data Types

ImageImage
TextText
Computer Code ProgrammingComputer Code Programming

Top Task Types

ClassificationClassification
Bounding BoxBounding Box
PolygonPolygon
SegmentationSegmentation
Object DetectionObject Detection
Text GenerationText Generation
Question AnsweringQuestion Answering
RLHFRLHF

Freelancer Overview

I have extensive experience in high-level data annotation and RLHF (Reinforcement Learning from Human Feedback), specializing in refining AI responses for accuracy, safety, and logical flow. My expertise spans complex text categorization, Chain of Thought reasoning, and technical code labeling across multiple programming languages. I excel at identifying subtle nuances in language and logic, ensuring that training datasets are high-quality, unbiased, and mathematically sound. What sets me apart is my ability to perform precision auditing at scale without losing consistency. I am highly proficient in ranking model outputs, providing detailed justifications for preferences, and executing complex multi-step instructions. Whether it is debugging code snippets or labeling datasets for factual groundedness, I deliver structured, high-utility data designed to significantly improve model performance and reliability.

IntermediateEnglishIgbo

Labeling Experience

AI Prompt Evaluator

ImageEvaluation Rating
Performed high-fidelity evaluation of text-to-image generative models by assessing the alignment between complex natural language prompts and AI generated visual outputs. I specialized in identifying prompt adherence, visual artifacts, and safety compliance, providing granular feedback to improve model accuracy and reduce hallucinations. My role involved ranking model outputs and performing object detection tasks to ensure structural integrity in generated images. By applying strict quality benchmarks, I contributed to the refinement of datasets used for training large scale computer vision and multimodal AI models.

Performed high-fidelity evaluation of text-to-image generative models by assessing the alignment between complex natural language prompts and AI generated visual outputs. I specialized in identifying prompt adherence, visual artifacts, and safety compliance, providing granular feedback to improve model accuracy and reduce hallucinations. My role involved ranking model outputs and performing object detection tasks to ensure structural integrity in generated images. By applying strict quality benchmarks, I contributed to the refinement of datasets used for training large scale computer vision and multimodal AI models.

2026 - Present

Data Analyst Intern

Classification
As a Data Analyst Intern, I focused on data preprocessing, cleaning, and visualization to ensure high data integrity for analysis. I created interactive visualizations and conducted exploratory data analysis to uncover key insights into business drivers and consumer behavior. I developed predictive models for classification tasks, contributing to risk assessment and trend forecasting within the company. • Utilized Python (Pandas, NumPy) to address missing values, outliers, and feature engineering for large datasets. • Created data visualizations using Seaborn and Matplotlib for business reporting. • Built and evaluated machine learning models, including Random Forest and Logistic Regression. • Ensured data integrity of 95%+ for downstream analyses.

As a Data Analyst Intern, I focused on data preprocessing, cleaning, and visualization to ensure high data integrity for analysis. I created interactive visualizations and conducted exploratory data analysis to uncover key insights into business drivers and consumer behavior. I developed predictive models for classification tasks, contributing to risk assessment and trend forecasting within the company. • Utilized Python (Pandas, NumPy) to address missing values, outliers, and feature engineering for large datasets. • Created data visualizations using Seaborn and Matplotlib for business reporting. • Built and evaluated machine learning models, including Random Forest and Logistic Regression. • Ensured data integrity of 95%+ for downstream analyses.

2026 - 2026

Education

T

TechCrush

Professional Certification, Data Science

Professional Certification
2026 - 2026
I

Imo State University

Bachelor of Science, Microbiology

Bachelor of Science
2022 - 2022

Work History

C

Codveda Technologies

Data Analyst Intern

Abuja
2026 - 2026
A

African Independent Television (AIT)

Advert Traffic Officer

Abuja
2025 - 2026