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AI Prompt Engineer, LLM Evaluator & Data Annotator

Nigeria flagLagos, Nigeria
$20.00/hrIntermediateMercorData Annotation Tech

Key Skills

Software

MercorMercor
Data Annotation TechData Annotation Tech

Top Subject Matter

LLM Training
AI Evaluation
Prompt Engineering

Top Data Types

DocumentDocument
ImageImage
VideoVideo

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
RLHFRLHF
Evaluation/RatingEvaluation/Rating
Text GenerationText Generation
Text SummarizationText Summarization

Freelancer Overview

AI Prompt Engineer, LLM Evaluator & Data Annotator. Brings 11+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Master of Business Administration, James Hope Business School (2025) and Bachelor of Science, Bingham University (2017). AI-training focus includes data types such as Text and labeling workflows including Prompt + Response Writing (SFT).

IntermediateEnglish

Labeling Experience

AI Prompt Engineer, LLM Evaluator & Data Annotator

TextPrompt Response Writing SFT
As an AI Prompt Engineer, LLM Evaluator, and Data Annotator, I design and develop high-quality prompts for constructing LLM training datasets. I label, classify, and structure raw text data to ensure clean, reliable inputs for AI model development. I also evaluate, score, and provide feedback on AI-generated outputs using structured rubrics and contribute to RLHF pipelines. • Authored structured prompts and grading rubrics aligned with task requirements and model objectives. • Delivered human feedback for reinforcement learning from human feedback (RLHF) workflows. • Annotated, classified, and organized large-scale text datasets for model training and evaluation. • Iterated on datasets in response to reviewer feedback, maintaining quality and accuracy standards.

As an AI Prompt Engineer, LLM Evaluator, and Data Annotator, I design and develop high-quality prompts for constructing LLM training datasets. I label, classify, and structure raw text data to ensure clean, reliable inputs for AI model development. I also evaluate, score, and provide feedback on AI-generated outputs using structured rubrics and contribute to RLHF pipelines. • Authored structured prompts and grading rubrics aligned with task requirements and model objectives. • Delivered human feedback for reinforcement learning from human feedback (RLHF) workflows. • Annotated, classified, and organized large-scale text datasets for model training and evaluation. • Iterated on datasets in response to reviewer feedback, maintaining quality and accuracy standards.

2025 - Present

Education

J

James Hope Business School

Master of Business Administration, Business Administration

Master of Business Administration
2024 - 2025
B

Bingham University

Bachelor of Science, Computer Science

Bachelor of Science
2013 - 2017

Work History

L

Legrand

Technical Sales & Project Manager

Lagos
2023 - Present
H

Huawei Technologies

PS Cloud Core Network Engineer – Team Lead

N/A
2022 - 2023