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O
Olanrewaju, O.

Olanrewaju, O.

AI Data Annotator - Healthtech, Organizational and Life Sciences

Nigeria flagLAGOS, Nigeria

Key Skills

Software

Other
Internal/Proprietary Tooling

Top Subject Matter

Healthcare - Medical Records, Research and Patient data
Finance - Risk awareness and fraud detection
E-Commerce - Product Categorization and customer support

Top Data Types

ImageImage

Top Task Types

ClassificationClassification

Freelancer Overview

OLANREWAJU SODIQ OLAMILEKAN Lagos,Nigeria|+2347048777312|[email protected] PROFESSIONALSUMMARY Analyticalanddetail-orientedprofessionalwithabackgroundinmedicineandfinance,currentlytransitioningintofinanceandbusiness operationsaftercompletingICANSkillsLevelexaminations(ACAinview).Experiencedinresearch,reporting,stakeholderengagement, compliance-drivenenvironments,andoperationalcoordination.Skilledatdatainterpretation,problem-solving,andworkingeffectively infast-pacedenvironmentsrequiringexcellence,professionalism,andcriticalthinking. CORECOMPETENCIES •FinancialReportingFundamentals •BusinessCommunication •DataAnalysis&Interpretation •ProcessCoordination •Research&Documentation •AnalyticalThinking •RiskAwareness&Compliance •ProblemSolving •StakeholderManagement •TeamCollaboration •MicrosoftExcel&Reporting •OperationalEfficiency PROFESSIONALEXPERIENCE Checkbodi–Teledermatology/AITrainer(Dec2024–Jan2026) AnalyzedclinicaldataandsupporttestingandtrainingforAI-enabledhealthcaresolutions. LagosStateUniversityTeachingHospital(LASUTH)–Researcher,DepartmentofDermatology(Nov2024–Jan2026) Contributedtoa€20,000grant-winningdermatologyresearchprojectthroughdatagathering,literaturereview,andstatisticalanalysis. TopteeMedicalCentre–MedicalOfficer(Oct2024–April,2026) Managedhigh-volumeworkflowswhileensuringaccuratedocumentationandcompliancewithoperationalprocedures. LeadwayHealthLimited–Telemedicine(Jan2025–Dec2025) Deliveredremoteconsultationswhilemeetingservicequalityandclientsatisfac

Labeling Experience

SKIN DATA CLASSIFICATION

ImageImageClassificationClassification

PROJECT CHECKBODI Project Overview This project involved the development of a high-quality, clinically structured dermatology image dataset to support the training of an AI-powered skin disease recognition system. The primary objective was to improve the model’s ability to accurately identify, differentiate, and classify common dermatological conditions with high sensitivity and specificity, using a combination of labeled clinical images and structured categorization frameworks. Project Scope: The scope of the project included end-to-end dataset preparation for machine learning model training, covering: Large-scale dermatology image annotation and classification Standardization of skin disease categories into clinically meaningful groups Data cleaning, de-duplication, and dataset organization Creation of structured folder-based labeling architecture for model ingestion Continuous dataset expansion and iterative improvement of training data quality Support for model refinement through improved labeling consistency and accuracy feedback loops Data Labeling Tasks Performed: Key responsibilities in the data annotation workflow included: Manually labeling and classifying over 20,000 dermatology images into defined skin disease categories Assigning clinically relevant labels based on visual features and symptom-based descriptors Grouping similar dermatological conditions to create consistent label taxonomies for machine learning use Identifying and removing duplicate or near-duplicate images to prevent dataset bias Structuring labeled data into automated folder-based classification systems aligned with model training architecture Ensuring correct mapping between image data and diagnostic categories for supervised learning Supporting iterative relabeling and refinement as new data was introduced into the system Project Size & Scale: Total dataset volume: 20,000+ annotated dermatology images, and counting. Data type: Clinical dermatology images with associated symptom descriptors Category structure: Multi-class classification system across multiple skin conditions Dataset growth model: Continuous expansion with periodic data updates and reclassification cycles System output use case: Training and improving an AI diagnostic tool for skin condition recognition Quality Assurance & Control Measures: To ensure dataset reliability and clinical validity, the following quality measures were implemented: Strict adherence to consistent labeling guidelines to reduce inter-labeler variability Cross-checking of labels to ensure clinical accuracy and diagnostic consistency Removal of duplicate and redundant images to reduce dataset bias and overfitting risk Validation of classification structure with clinical reasoning to ensure medically meaningful groupings Iterative review cycles to refine labeling errors and improve dataset precision Collaboration with clinical oversight to align annotations with standard dermatological practice Ongoing dataset refinement based on AI model feedback, improving sensitivity, specificity, and classification performance Outcome: The resulting dataset significantly improved the AI model’s ability to recognize and differentiate dermatological conditions, enhancing diagnostic accuracy through improved data quality, structured labeling, and clinically informed categorization systems.

2024 - 2026

Education

T

TECH SPHERE ACADEMY

PROJECT MANAGEMENT CERTIFICATE, Project Management

PROJECT MANAGEMENT CERTIFICATE
2026 - 2026
F

FUTURE ACADEMY AFRICA

DATA SCIENCE CERTIFICATE, Data Science

DATA SCIENCE CERTIFICATE
2023 - 2023

Work History

T

Toptee Medical Centre

Medical Officer

Lagos
2024 - Present
L

LAGOS STATE UNIVERSITY TEACHING HOSPITAL

Researcher/ Research Assistant

Lagos
2024 - Present