Open to opportunities

Mark Uk

@markuk

AI Data Annotation Specialist and AI Trainer improving language quality, factuality, and model performance through expert evaluation.

United Kingdom

Message

What I'm looking for

I’m looking to apply my 4+ years evaluating and improving AI-generated content—ranking responses, checking facts, and delivering structured QA feedback—to help teams build more accurate, instruction-following language models.

I’m an AI Data Annotation Specialist and AI Trainer with 4+ years of experience evaluating and improving AI-generated content. I rank and assess outputs across multiple domains, identifying factual errors, logical inconsistencies, and instruction deviations to strengthen accuracy and consistency.

I deliver structured comparative feedback and conduct large-scale data annotation and quality assurance to improve linguistic accuracy and contextual understanding. Alongside AI training, I write and edit high-quality academic and professional content in UK English, focusing on clarity, coherence, and audience-aligned outcomes.

Experience

Work history, roles, and key accomplishments

Current

AI Trainer & Data Annotator

Current

Freelance

Jan 2020 - Present (6 years 4 months)

Evaluated and ranked AI-generated outputs across multiple domains to improve accuracy and consistency. Identified factual errors and instruction deviations and provided structured comparative feedback to enhance model performance.

AI Data Annotation Response Ranking Fact Checking Quality Assurance

Current

Content Writer & Editor

Current

Freelance

Jan 2018 - Present (8 years 4 months)

Developed and edited academic and professional content with strong attention to British English standards and client specifications. Improved clarity, structure, and coherence while aligning deliverables to audience and project objectives.

Academic Writing Content Editing UK English QA Clarity Improvement Clarity And Coherence Research & Analysis Microsoft Word