Open to opportunities

Kwamina Arthur-Mensah

@kwaminaarthur-mensah

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LLM Trainer and AI Data Specialist focused on high-quality multilingual model refinement.

Ghana

Message

What I'm looking for

I seek remote or hybrid roles in AI/ML teams where I can apply LLM training, prompt engineering, and multilingual annotation to improve model quality and user relevance.

I am an LLM Trainer and AI Data Specialist with over two years of hands-on experience refining large language models through prompt engineering, response evaluation, and linguistic quality assurance. I specialize in multilingual annotation, semantic accuracy, and designing adversarial prompts to improve model robustness.

At Invisible Technologies I trained and evaluated models across conversational, creative, and factual domains, edited AI outputs to meet strict task requirements, and provided detailed feedback that influenced downstream model behavior. Previously I created engaging content that increased website traffic by over 50% and supported IT systems, documentation, and security in corporate environments.

I collaborate effectively with remote, global teams, bring strong attention to detail and analytical thinking, and am passionate about building inclusive, high-performing multilingual AI systems that prioritize contextual relevance and cultural adaptation.

Experience

Work history, roles, and key accomplishments

Current

Advanced AI Data Trainer

Current

Invisible Technologies

Jan 2022 - Present (4 years)

Trained and refined large language models by creating, annotating, and evaluating complex prompts across conversational, creative, and factual domains, improving model robustness and response quality. Reviewed and edited AI outputs for linguistic accuracy, coherence, and instruction adherence, and designed adversarial prompts to expose and remediate model weaknesses.

Prompt Engineering Data Annotation Evaluating Responses SFT RAG

Blog Writer & Content Creator

Bored Billy

Jan 2019 - Dec 2024 (5 years 11 months)

Created engaging, well-structured written content that increased website traffic by over 50% and maintained stylistic consistency across publications. Proofread and edited large volumes of text, adapted tone for diverse audiences, and analyzed trends to optimize content performance.

Content Writing Editing seo writing Proofreading Content Strategy CMS

Information Technology Officer

Innolink Limited

Jan 2018 - Dec 2022 (4 years 11 months)

Provided technical support and system maintenance while ensuring data integrity and security, maintained documentation and system audits, and supported database and website updates to ensure content accuracy and functionality.

Technical Support Maintenance Support Database Documentation IT Security Troubleshooting