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John Ugwu

John Ugwu

AI Training Specialist - Audio & Speech AI

NIGERIA flag
Owerri, Nigeria
$25.00/hrIntermediateMindrift

Key Skills

Software

MindriftMindrift

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
TextText

Top Label Types

Audio Recording
Evaluation Rating

Freelancer Overview

I am a Computer Engineering graduate with hands-on experience in AI training data, specializing in audio and speech data annotation, LLM response evaluation, and structured content analysis. My work involves contributing high-quality voice and speech samples for AI datasets, evaluating AI-generated outputs for accuracy and clarity, and meticulously following annotation guidelines to ensure precision. I am skilled in prompt refinement, content review, and technical documentation, with a strong analytical approach and excellent English communication skills. I have also conducted in-depth research and analysis in the blockchain and crypto domains, further strengthening my attention to detail and ability to simplify complex technical concepts. My technical toolkit includes basic Python, Microsoft Office, Google Workspace, and various online research and audio recording tools, allowing me to deliver reliable, high-quality annotated data for AI model improvement.

IntermediateEnglish

Labeling Experience

No Data Labeling experience added

John U. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

E

Enugu State University of Science and Technology

Bachelor of Engineering, Computer Engineering

Bachelor of Engineering
2022 - 2022

Work History

N

N/A

Content Creator & Crypto Research Analyst

Owerri
2022 - Present
S

Sahara Ai

Data Annotator & AI Trainer

Gwangju
2025 - 2025