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I am Joel Sakala, an AI trainer and medical education specialist based in Lusaka, Zambia. I bring advanced medical knowledge and C2-level English proficiency to train AI models on healthcare data, refine medical NLP tasks, and provide feedback on clinical reasoning. As a freelance professional on Upwork, Fiverr, and Preply, I deliver thorough evaluations, maintain high quality standards, and tailor feedback to client needs, enabling scalable, reliable results across medical and educational AI projects.…I am Joel Sakala, an AI trainer and medical education specialist based in Lusaka, Zambia. I bring advanced medical knowledge and C2-level English proficiency to train AI models on healthcare data, refine medical NLP tasks, and provide feedback on clinical reasoning. As a freelance professional on Upwork, Fiverr, and Preply, I deliver thorough evaluations, maintain high quality standards, and tailor feedback to client needs, enabling scalable, reliable results across medical and educational AI projects.

Joel Sakala

AI Engineer, Data Scientist, QA Engineer, +2

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I am Joel Sakala, an AI trainer and medical education specialist based in Lusaka, Zambia. I bring advanced medical knowledge and C2-level English proficiency to train AI models on healthcare data, refine medical NLP tasks, and provide feedback on clinical reasoning. As a freelance professional on Upwork, Fiverr, and Preply, I deliver thorough evaluations, maintain high quality standards, and tailor feedback to client needs, enabling scalable, reliable results across medical and educational AI projects.…I am Joel Sakala, an AI trainer and medical education specialist based in Lusaka, Zambia. I bring advanced medical knowledge and C2-level English proficiency to train AI models on healthcare data, refine medical NLP tasks, and provide feedback on clinical reasoning. As a freelance professional on Upwork, Fiverr, and Preply, I deliver thorough evaluations, maintain high quality standards, and tailor feedback to client needs, enabling scalable, reliable results across medical and educational AI projects.

Available to hire

I am Joel Sakala, an AI trainer and medical education specialist based in Lusaka, Zambia. I bring advanced medical knowledge and C2-level English proficiency to train AI models on healthcare data, refine medical NLP tasks, and provide feedback on clinical reasoning.

As a freelance professional on Upwork, Fiverr, and Preply, I deliver thorough evaluations, maintain high quality standards, and tailor feedback to client needs, enabling scalable, reliable results across medical and educational AI projects.

Skills

AI Data Labelling

Copywriting

Experience Level

AI Data Labelling

Expert

Copywriting

Intermediate

Language

English

Fluent

Work Experience

Medical Student at Levy Mwanawasa Medical University, Zambia

January 1, 2020 - Present

Pursuing MBChB with deep knowledge of pathophysiology, pharmacology, clinical medicine, and evidence-based practice; practical clinical experience across rotations, with focus on diagnostic reasoning and treatment protocols

Freelance Educator at Preply, Upwork, Fiverr

January 1, 2022 - Present

Tutored science and English subjects, adapting complex material for diverse audiences; Built strong client relationships through reliable communication and measurable learning outcomes; Self-managed freelance workload with focus on deadline adherence and quality delivery