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Chioma Ogbonna

@chiomaogbonna2

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Data annotator and generative AI specialist driving accurate, high-quality training datasets.

Nigeria

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What I'm looking for

I seek remote roles where I can apply data annotation and generative AI skills, collaborate with R&D teams, and contribute to improving model quality and dataset integrity.

I am a results-driven Data Annotator and Generative AI Associate with extensive remote experience in data labeling, transcription, and AI model evaluation. I specialize in NLP, text and image annotation, LLM evaluation, and data augmentation to improve model performance.

At Innodata, I evaluate AI outputs for accuracy and compliance, create and refine prompts, and perform relevance and preference ranking to guide model improvements. I also expand datasets through paraphrasing, summarization, and multimodal transformations.

Previously, I transcribed and proofread complex audio for OneForma, trained audio models at Mercor, and performed text/image annotation and NLP tasks for diverse AI projects. I have collaborated closely with data scientists, linguists, and AI teams to enhance dataset quality.

I hold an M.Sc. in Computer Sciences and Information Technology and medical training (MBBS), complemented by certifications in data labeling, NLP, generative AI, and advanced analytics. I bring strong attention to detail, deadline management, and a proven record of maintaining data integrity and confidentiality.

Experience

Work history, roles, and key accomplishments

Current

Generative AI Associate

Current

Innodata Inc.

Aug 2025 - Present (6 months)

Evaluate and annotate multimodal AI outputs, generate and refine prompts, and perform preference ranking and response rewrites to improve model relevance and factual accuracy.

Data Annotation Prompt Engineering Quality Assurance Transcription Relevance

Current

Transcriptionist

Current

OneForma

Sep 2023 - Present (2 years 5 months)

Transcribed and proofread multimedia and medical audio with strict confidentiality and formatting standards, collaborating with AI teams to produce high-quality speech-to-text datasets.

Medical Transcription Audio Transcription Proofreading Speech To Text QA Multispeaker Processing Data Collection

Research Assistant

University of Benin

Jan 2018 - Aug 2025 (7 years 7 months)

Collected and validated research data, managed secure storage with privacy compliance, and assisted in drafting reports and technical publications for academic studies.

Data Collection Data Validation Data Management Reporting Technical Writing Privacy & Compliance Documentation

Audio Model Trainer

Mercor

Jan 2024 - Jul 2024 (6 months)

Produced and labeled natural-sounding audio samples and descriptive spoken content to train multimodal AI systems, improving dataset quality through linguistic and timing standards.

Audio Recording Audio Labeling Collaboration With Data Scientists

Data Annotator

Data Annotation

Aug 2020 - May 2023 (2 years 9 months)

Performed text and image annotation including bounding boxes and entity tagging, conducted NLP tasks and localization, and led QA audits to ensure labeling consistency and dataset integrity.

Bounding Boxes Object Detection Sentiment Analysis Localization QA Annotations

Customer Service Rep

Jemjud Global Bridge LLC

Apr 2020 - Jul 2022 (2 years 3 months)

Managed customer inquiries across phone, chat, and email, processed orders and complaints, and provided data-driven insights to improve workflows and customer retention.

Customer Support CRM Order Processing Data Analysis Escalation Management Communication