Mark-David Okoye
@mark-davidokoye
Data specialist skilled in annotation, quality assurance, and database automation.
NigeriaWhat I'm looking for
I am a meticulous data specialist with hands-on experience in data annotation, evaluation, and quality assurance for AI-focused projects. I combine advanced English proficiency with scripting skills in Python and Bash to deliver reliable, high-quality datasets.
As a consultant and intern, I developed Power BI dashboards that reduced data-related errors by 15% and built automation scripts to streamline routine database tasks. I have experience collecting and preprocessing data from sources like Shopify and Stripe and performing pairwise comparisons, object tagging, and database validation.
I prioritize strict adherence to project guidelines, remote collaboration, and timely delivery, and I seek roles where I can support AI model development and improve data integrity through careful evaluation and tooling.
Experience
Work history, roles, and key accomplishments
Database Specialist
Self-Employed
Nov 2024 - Present (11 months)
Provide part-time database support and management for SMBs, developing automation scripts and performing rigorous data quality assurance to ensure 100% data integrity across client projects.
Data Analyst Intern
AppCentral
May 2024 - Nov 2024 (6 months)
Annotated and labeled large datasets and built Power BI dashboards to identify anomalies, reducing data-related errors by 15% while collaborating on data cleaning and transformation for project readiness.
Freelance Data Consultant
Freelance
Jan 2024 - May 2024 (4 months)
Executed AI data tasks including pairwise comparisons and object tagging, and consolidated sales data from Shopify and Stripe to produce weekly sales and inventory reports that optimized client stock levels.
Education
Degrees, certifications, and relevant coursework
AltSchool
Diploma in Data Engineering, Data Engineering
Completed a Diploma in Data Engineering focused on data handling, preprocessing, and engineering fundamentals.
University of Science and Technology
Bachelor of Science, Sociology and Anthropology
Earned a Bachelor of Science in Sociology and Anthropology with studies in social sciences and human behavior.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Job categories
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