Andrew N.

Key Skills

Software

Data Annotation Tech

Top Subject Matter

healthcare - medical record and patient data

E-commerce - product Categorization

Top Data Types

Document

Text

Image

Top Task Types

Bounding Box

Object Detection

Question Answering

RLHF

Transcription

Text Summarization

Evaluation/Rating

Freelancer Overview

Andrew I. Njoku Phone: +1 917-400-7129 | Email: [email protected] Professional Summary Detail-oriented AI Training and Data Annotation professional with experience evaluating AI outputs, annotating datasets, conducting quality assurance reviews, and applying guideline-based decision making. Skilled in prompt engineering, data verification, AI model evaluation, and process improvement. Combines analytical thinking, research expertise, and technical problem-solving to support AI training and operational excellence. Core Skills Prompt Engineering • AI Model Evaluation (RLHF) • Data Annotation • Quality Assurance (QA) • AI Training • Data Verification • Critical Thinking • Guideline Adherence • Complex Problem Solving • Research & Analysis • Microsoft Word • Excel • PowerPoint Professional Experience Freelance AI Training Specialist | Self-Employed / Remote | 2025 – Present Designed and tested 500+ iterative prompts across coding, copywriting, research, and translation tasks to evaluate AI response quality, accuracy, and consistency. Reviewed and audited AI-generated content against detailed project rubrics, identifying errors, bias, structural issues, and opportunities for improvement. Provided written feedback and quality assurance assessments to improve model outputs and support AI training initiatives. Applied strict policy, safety, and compliance guidelines to ensure responses met ethical, neutrality, and content standards. Researched and verified factual accurac

Labeling Experience

Freelance Transcription specialist

TextTranscription

Critically and detail oriented Text analysis and review of original sources, transcribing original prompts, inserting missing links without altering the original meaning of generated prompts.

2025 - Present

image annotation

ImageRLHF

Following instruction to optimize image models generated by prompts by critical analysis, review and ranking. furniture removal and reconstruction, and generating new prompts to enhance quality AI outputs.

2025 - Present

Education

Work History