Joan Desmond
@joandesmond
AI Prompt Engineer and Data Annotator at Gideontech, improving LLM accuracy by 22% through prompt design.
NigeriaWhat I'm looking for
At Gideontech, I developed and optimized prompts for summarization, classification, and extraction, increasing LLM accuracy by 22%. I also evaluated AI-generated outputs and created reusable prompt templates.
At Telus International, I reviewed and tagged NLP outputs across quality assurance, classification, and sentiment tasks. I identified biased or hallucinated outputs and provided feedback used to refine model evaluation protocols.
On projects with Appen / Crowdgen, I labeled and verified text, audio, and image samples and participated in prompt tuning for LLM training. I’m interested in contributing to ethical, user-aligned AI systems through freelance Generative AI projects.
Experience
Work history, roles, and key accomplishments
Data Annotator
Gideontech
Apr 2025 - Present (1 year 6 months)
Developed and optimized 500+ prompts for summarization, classification, and extraction, increasing LLM accuracy by 22%. Evaluated over 3,000 AI-generated outputs for tone, relevance, and hallucination, reducing invalid completions by 98%.
Reviewed and tagged over 10,000 NLP outputs across QA, classification, and sentiment tasks. Identified 1,200+ biased or hallucinated outputs, increasing dataset quality and ethical compliance.
Conducted customer analytics using ZOHO CRM for operational improvement. Documented support interactions and streamlined backend collaboration through Slack.
Labeled and verified 20K+ text, audio, and image samples across NLP and computer vision use cases. Participated in prompt tuning for LLM training, reducing annotation errors by 17%.
Education
Degrees, certifications, and relevant coursework
University of Nigeria, Nsukka
Bachelor of Arts, English and Literary Studies
2017 - 2021
Pursued a Bachelor of Arts in English and Literary Studies, focusing on literary analysis and language studies.
Allison
Digital Marketing Certification, Digital Marketing
Completed a certification in Digital Marketing.
Coursera
Google Project Management Certification, Project Management
Completed the Google Project Management certification.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Salary expectations
Job categories
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