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John ApaelJA
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John Apael

@johnapael

Agricultural Technologist and AI prompt engineer delivering research-grade data and LLM solutions for sustainable productivity.

Nigeria
Message

What I'm looking for

I’m looking for full-time, remote, or hybrid work where I can combine agricultural research and data quality with prompt engineering, HITL QA, and LLM solutions—driving digital transformation, improving productivity, and delivering practical, impactful outcomes.

I’m a results-driven Agricultural Technologist with over 15 years of experience in agricultural research, crop production, field operations, and data management. At the National Horticultural Research Institute (NIHORT), I conduct field trials, supervise farm operations, and ensure timely delivery of research work.

Alongside my core agricultural background, I build AI solutions grounded in quality. I specialize in prompt engineering, data annotation & labelling, AI model evaluation, and Human-in-the-Loop (HITL) QA to maintain accurate, compliant data and reliable outputs.

Since founding my consultancy, I’ve provided AI prompt engineering and large language model (LLM) solutions, developed AI chatbots to automate processes, and supported data annotation services and AI model evaluation. I also deliver training and consulting on AI tools and digital transformation.

I’m certified in Micro Prompt Engineering, LLM Fine-Tuning, Data Labelling, HITL QA & Data Quality Management, and AI chatbot building. My professional ethos is to leverage technology and data to drive innovation, improve productivity, and deliver impactful solutions that help farmers and stakeholders.

Experience

Work history, roles, and key accomplishments

PA
Current

Founder AI Digital Solutions Consultant

Preston Tech & Associates

Jan 2018 - Present (8 years 6 months)

Provide AI prompt engineering and large language model (LLM) solutions, including AI chatbot development and automated business process support. Also deliver data annotation/labeling services, AI model evaluation, and training and consulting on AI tools and digital transformation.

NN
Current

Principal Agricultural Technologist

National Horticultural Research Institute (NIHORT)

Jan 2009 - Present (17 years 6 months)

Conduct agricultural research and field trials on horticultural crops, including supervising crop production and farm operations. Collect and analyze agricultural data, produce research documentation, coordinate projects, and ensure data quality and compliance.

Education

Degrees, certifications, and relevant coursework

FI

Federal College of Agriculture, Ibadan

National Diploma (ND), Agricultural Technology

Completed a National Diploma (ND) in Agricultural Technology at Federal College of Agriculture, Ibadan.

Tech stack

Software and tools used professionally

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