Open to opportunities

WILL User

@willuser4

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AI Trainer and Data Annotation Specialist focused on high-quality labeled data and RLHF to improve model performance.

Kenya

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What I'm looking for

I seek roles where I can apply RLHF and annotation expertise to improve model safety and accuracy, collaborate cross-functionally, and drive continuous quality improvements.

I am an AI Trainer and Data Annotation Specialist with hands-on experience labeling text, image, and tabular datasets to train and optimize machine learning and large language models. I consistently follow detailed annotation guidelines and perform quality assurance to ensure high accuracy and consistency under tight deadlines.

I evaluate AI-generated outputs for accuracy, relevance, safety, and policy compliance, contributing structured feedback to Reinforcement Learning from Human Feedback (RLHF) pipelines. I identify bias, flag unsafe responses, and document edge cases to reduce hallucinations and improve model alignment.

I collaborate with cross-functional and global teams to refine annotation guidelines, provide corrective feedback, and support continuous calibration sessions. My work has supported improved model reliability, inter-annotator agreement, and real-world response accuracy.

Experience

Work history, roles, and key accomplishments

Current

AI Safety Evaluator

Current

OpenAI (via Third-Party Vendor)

Apr 2024 - Present (1 year 8 months)

Evaluates AI responses for safety, alignment, reasoning quality, and policy compliance; identifies misinformation, bias, and unsafe outputs and contributes to RLHF pipelines to improve model trustworthiness.

AI Safety RLHF Pipeline Compliance Evaluating Responses Ethics

AI Quality Reviewer

Appen

Sep 2023 - Mar 2024 (6 months)

Reviewed and audited annotated datasets to ensure client compliance, provided corrective feedback to annotators, and documented edge cases to inform model retraining.

Quality Assurance Feedback Edge Cases Inter Annotator Agreement Compliance Annotations

Data Annotation Analyst

Telus International

Jan 2023 - Aug 2023 (7 months)

Performed linguistic and contextual annotation to improve search relevance and reduce hallucinations, validated model outputs and participated in calibration sessions to align global annotation quality.

Linguistic Annotation Search Relevance Validation Performance Calibration & QA NLP Documentation

AI Training Specialist

Remotasks

Jul 2022 - Dec 2022 (5 months)

Annotated complex NLP datasets (classification, summarization, intent detection) and provided structured feedback for RLHF workflows while meeting strict accuracy and throughput targets.

Classification Summarization Productivity Data Security & QA

AI Data Annotator

Scale AI

Jan 2022 - Jun 2022 (5 months)

Labeled and reviewed large-scale text, image, and tabular datasets to train ML and LLMs, ensuring high accuracy and consistency and flagging ambiguous or biased cases.

Data Annotation Image Labeling & QA Data Quality NLP