Henry Okang

Key Skills

Software

AWS SageMaker

Appen

Argilla

Clickworker

Mindrift

CVAT

Top Subject Matter

Llms Domain Expertise

Legal (Land Transfer)

Fintech Domain Expertise

Top Data Types

Document

Image

Text

Audio

Top Label Types

Computer Programming Coding

Data Collection

Text Generation

Transcription

Freelancer Overview

Senior AI Annotator & Content Verifier. Brings 4+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Master of Science, National Open University of Nigeria (2024) and Post Graduate Diploma, National Open University of Nigeria (2023). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Transcription.

Labeling Experience

Bilingual Voice & Linguistic Analyst

AudioTranscription

As a Bilingual Voice & Linguistic Analyst, I managed audio-to-text data collection and transcription tasks in both English and French. I refined culturally nuanced text outputs and ensured phonetic accuracy in linguistic datasets. My work encompassed audio segmentation, regional dialect validation, and secure remote management of data. • Delivered 100% phonetic accuracy in transcription projects • Enhanced machine-generated text for dialectal relevance • Managed secure data transfers and project integrity • Collaborated with linguists and project managers for data quality

As a Bilingual Voice & Linguistic Analyst, I managed audio-to-text data collection and transcription tasks in both English and French. I refined culturally nuanced text outputs and ensured phonetic accuracy in linguistic datasets. My work encompassed audio segmentation, regional dialect validation, and secure remote management of data. • Delivered 100% phonetic accuracy in transcription projects • Enhanced machine-generated text for dialectal relevance • Managed secure data transfers and project integrity • Collaborated with linguists and project managers for data quality

2023 - Present

Senior AI Annotator & Content Verifier

Text

As a Senior AI Annotator & Content Verifier, I conducted complex annotation tasks for LLMs, ensuring logical coherence, factuality, and adherence to precise gold standards. I validated documentation accuracy in legal land transfers and fintech data, applying domain expertise to high-stakes datasets. I worked closely with developers to improve system diagnostics and mapped cause-effect chains in diverse administrative and technical data. • Performed logical error correction in model outputs • Applied rigorous standards for factual and cultural appropriateness • Validated and annotated technical, administrative, and legal records • Collaborated remotely to ensure high consistency in AI training data

As a Senior AI Annotator & Content Verifier, I conducted complex annotation tasks for LLMs, ensuring logical coherence, factuality, and adherence to precise gold standards. I validated documentation accuracy in legal land transfers and fintech data, applying domain expertise to high-stakes datasets. I worked closely with developers to improve system diagnostics and mapped cause-effect chains in diverse administrative and technical data. • Performed logical error correction in model outputs • Applied rigorous standards for factual and cultural appropriateness • Validated and annotated technical, administrative, and legal records • Collaborated remotely to ensure high consistency in AI training data

2023 - Present

E-commerce Product Catalog Image Annotation

CVATImageBounding BoxClassification

I successfully completed a project involving the annotation of 2,500+ product images for an e-commerce catalog. The primary task was using bounding boxes to accurately isolate and identify various products (e.g., electronics, apparel) within complex scenes. Included a secondary classification task to assign product categories and attributes. Maintained an average 98% accuracy rate by strictly adhering to project guidelines and executing rigorous quality assurance (QA) checks, demonstrating strong attention to detail and proficiency in visual data preparation for Computer Vision/Object Detection models.

I successfully completed a project involving the annotation of 2,500+ product images for an e-commerce catalog. The primary task was using bounding boxes to accurately isolate and identify various products (e.g., electronics, apparel) within complex scenes. Included a secondary classification task to assign product categories and attributes. Maintained an average 98% accuracy rate by strictly adhering to project guidelines and executing rigorous quality assurance (QA) checks, demonstrating strong attention to detail and proficiency in visual data preparation for Computer Vision/Object Detection models.

2025 - 2025

AI Trainer & Technical Consultant

TextText Generation

As an AI Trainer & Technical Consultant, I generated gold-standard answers and critiqued model outputs for training and improving AI systems. I specialized in condensing and optimizing technical documentation for accessible AI comprehension. My collaboration with developers focused on refining instructional content and promoting model reliability. • Systematically critiqued and improved model outputs • Developed accessible instruction sets for model training • Created and validated training data for reliability • Worked with Upwork clients on diverse technical AI projects

As an AI Trainer & Technical Consultant, I generated gold-standard answers and critiqued model outputs for training and improving AI systems. I specialized in condensing and optimizing technical documentation for accessible AI comprehension. My collaboration with developers focused on refining instructional content and promoting model reliability. • Systematically critiqued and improved model outputs • Developed accessible instruction sets for model training • Created and validated training data for reliability • Worked with Upwork clients on diverse technical AI projects

2023 - 2024

Education

Work History