Tosin Isaac T.

Key Skills

Software

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Top Subject Matter

Physics Domain Expertise

Mathematics Domain Expertise

Chemistry Domain Expertise

Top Data Types

Document

Text

Top Task Types

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Freelancer Overview

I design and evaluate structured knowledge content across Physics, Mathematics, Chemistry, and Social Sciences. As founder of the Kabba Academic Olympiad, I built and quality-checked 240+ questions across 4 difficulty tiers, verified 200 Stage 1 answer keys, and flagged errors that slipped past initial review. I have 6+ years of exam design, marking, and content QA experience at secondary and competition level. My subject depth spans STEM and humanities. I'm precise with data, consistent under rubric, and comfortable with web-based tools and AI automation platforms.

Labeling Experience

Founder and Chief Examiner — Kabba Academic Olympiad (KAO)

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Designed, verified, and quality-checked large volumes of exam questions and answer keys for student assessments. Performed evaluation-style QA by flagging and correcting errors such as calculation mistakes and ambiguous items. Produced clean, structured assessment outputs across multiple subjects and difficulty tiers for consistent downstream use. • Authored 240+ questions across 4 difficulty tiers • Verified 200+ Stage 1 answer keys and corrected errors • Handled ambiguous/question quality issues using review rubrics • Produced formatted exam papers and answer booklets

2024 - Present

Academic Host and Chief Examiner — KSU Olympiad / NAOS

Document

Evaluated and set examination content for multi-school academic competitions by designing questions and applying consistent marking criteria. Conducted QA on exam materials to ensure accuracy and reliable results across sessions. Managed exam administration workflows including content preparation and evaluation processing. • Designed and evaluated questions for competitions • Applied marking schemes and verification checks • Oversaw results collation and exam administration • Ensured consistency and error handling in assessments

2023 - Present

STEM Teacher (Physics, Mathematics, Chemistry) — Secondary School

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Evaluated student work in Physics, Mathematics, and Chemistry using prepared tests, lesson materials, and marking schemes. Applied consistent criteria to grade responses and ensure correctness against expected methods and concepts. Supported accurate, repeatable assessment by aligning materials with national curriculum standards. • Marked student responses using structured rubrics • Developed tests and marking schemes aligned to curriculum • Evaluated multi-item assessments over 6+ years • Provided scientifically grounded feedback based on criteria

2018 - Present

Education

Work History