Tochukwu H.

Key Skills

Software

Other

Top Subject Matter

Speech recognition and audio ML training data

Business analytics reporting and data preparation

Top Data Types

Audio

Video

Text

Top Task Types

Data Collection

Segmentation

Freelancer Overview

Freelance AI Trainer (Audio annotation & HITL feedback for speech recognition). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N, A, and Other. Education includes Bachelor of Technology, Federal University of Technology Owerri (2023) and Senior School Leaving Certificate, Millennium Senior Secondary School (2017). AI-training focus includes data types such as Audio, Geospatial, and Tiled Imagery and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

Data annotations

TextFine-tuning

This is where we compare to generated AI text and compare them together to find out which is better

2025 - Present

Freelance AI Trainer (Audio annotation & HITL feedback for speech recognition)

Audio

Provided high-precision audio data annotation and correction to improve training dataset quality for speech recognition. Implemented Human-in-the-Loop (HITL) corrective feedback loops to refine model outputs and increase prediction accuracy. Maintained approximately 90% accuracy while processing over 50 hours of audio weekly, balancing speed with labeling rigor.• Annotated and corrected audio data for speech recognition training.• Delivered corrective feedback in HITL workflows to improve model performance.• Monitored labeling accuracy against internal quality standards.• Managed weekly throughput to process large audio volumes.

2026 - Present

Video annotations

VideoSegmentation

We are given a short video and ask to describe the actions of the main subject in that video in segments

2026 - 2026

Data Analysis Intern (supporting data collection/analysis for reporting)

OtherData Collection

Supported data analysis and reporting activities that contributed to project documentation and business insights. Assisted with SQL queries and spreadsheet-based analysis to help structure and evaluate collected information. Created visual presentation content using Canva to communicate findings to stakeholders. • Helped run and refine SQL queries for business data analysis.• Performed spreadsheet-based data organization in Excel/Canva assets.• Produced presentation visuals for reporting and documentation.• Supported project documentation and reporting tasks.

2025 - 2025

Education

Work History