David A.

Key Skills

Software

Other

Appen

Data Annotation Tech

Micro1

Mercor

Mindrift

OneForma

Remotasks

Surge AI

Top Subject Matter

AI response analysis and content evaluation

Audio transcription and numerical data labeling

Prompt optimization and AI content evaluation

Top Data Types

Text

Audio

Document

Top Task Types

Transcription

Prompt + Response Writing (SFT)

Classification

Point/Key Point

Text Generation

Question Answering

RLHF

Text Summarization

Object Detection

Red Teaming

Data Collection

Freelancer Overview

AI Data Annotator & Prompt Evaluation Specialist (Freelance / Self Projects). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes National Diploma, The Polytechnic, Ibadan (2026). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Transcription.

Labeling Experience

AI Content Evaluation & Prompt Optimization Workflow (Project)

OtherTextPrompt + Response Writing (SFT)

Developed an AI content evaluation and prompt optimization workflow to improve output quality. Measured AI responses using metrics such as accuracy, relevance, clarity, and consistency. Compared outputs across prompt variations and documented findings for iterative quality improvement. • Used structured prompting techniques to reduce ambiguity • Applied evaluation metrics to rate response quality • Compared AI outputs across different prompt versions • Documented evaluation results to guide prompt refinements

2024 - Present

Audio Transcription & Numerical Data Annotation Project

OtherAudioTranscription

Performed transcription and numerical data annotation to convert unstructured inputs into structured datasets for AI training workflows. Focused on accurate numerical transcription and consistency verification to preserve dataset quality. Maintained organized labeled outputs with high attention to detail. • Transcribed spoken audio into structured text • Verified numerical transcription consistency • Ensured accurate labeling standards for training datasets • Organized labeled outputs for downstream use

2024 - Present

AI Data Annotator & Prompt Evaluation Specialist (Freelance / Self Projects)

OtherText

Evaluated AI-generated responses for accuracy, clarity, relevance, consistency, and instruction adherence using predefined criteria and guideline rubrics. Identified inconsistencies, ambiguities, and errors, then provided structured feedback to improve AI model performance. Documented evaluation findings, prompt variations, and annotation workflows in organized formats. • Rated responses against taxonomy and quality criteria (e.g., relevance, clarity, consistency) • Applied annotation guidelines to ensure rule compliance • Produced structured feedback for corrective improvements • Maintained consistency across repetitive evaluation tasks

2024 - Present

Education

Work History