Emmanuel (Chinweoke) Okogbueh

AI Data Annotation Specialist

Avatar placeholder
Nigeria

Experience

May 2025 - Present
9 months
Palo Alto, United States

AI Data Annotation Specialist

Micro1

  • Perform precise multi-modal annotations across text, audio, and image datasets following detailed project specifications.
  • Evaluate content accuracy, detect inconsistencies, and escalate ambiguous data cases for review.
  • Provide structured feedback and recommendations to improve AI model training pipelines.
  • Maintained a consistent 98% annotation accuracy and QA rating of 4.1/5.0 under strict turnaround times.
  • Contributed to the training and validation of the newly launched Ray3 Lumar Model Project, enhancing data efficiency and label precision in multimodal AI learning.
May 2025 - May 2025
1 month

Ray3 Lumar Model Training Project

Micro1

  • Participated in the annotation and training of the Ray3 Lumar AI model, focusing on multi-domain datasets (text, audio, image).
  • Improved data consistency and reduced labeling bias through structured annotation feedback loops.
  • Enhanced multimodal learning accuracy, contributing to overall model optimization.
Apr 2025 - Present
10 months
Malta

Data Analyst | Software Developer | Educator

Esined Group

  • Deliver structured instruction to diploma students in Python, SQL, Object-Oriented Programming, and full-stack development.
  • Develop data-driven academic tools and optimize software to enhance learning efficiency.
  • Create engaging, factual, and clear instructional content for technical education.
  • Apply analytics and visualization techniques to demonstrate the impact of data-driven solutions.
Jan 2025 - May 2025
5 months

AI Data Annotation Specialist

RWS Group

  • Executed data labeling and annotation for AI/ML projects across text, audio, and image datasets.
  • Identified factual errors and improved dataset reliability through consistent quality checks.
  • Collaborated with cross-functional QA teams to optimize model accuracy.
  • Achieved 98% precision rating and met all project performance metrics.
Jan 2025 - Jan 2025
1 month

Customer Data Analysis

MUCAS Hospital

  • Analyzed patient satisfaction metrics, increasing referral rates by 27%.
  • Designed Power BI dashboards to monitor and optimize medication distribution.
Nov 2024 - Mar 2025
5 months
London, United Kingdom

Data Analyst

Innovate Path Consulting Limited

  • Conducted operational analysis, improving decision-making efficiency by 15% through KPI insights.
  • Built interactive Power BI dashboards, reducing manual reporting time by 40%.
  • Streamlined preprocessing pipelines, increasing data accuracy by 25%.
  • Automated SQL reports, cutting execution time by 30%.
Nov 2024 - Nov 2024
1 month

Healthcare Data Trends Analysis

MUCAS Hospital

  • Conducted exploratory data analysis (EDA) to identify recovery time determinants.
  • Generated actionable insights that improved infection control compliance by 100%.
Mar 2014 - Nov 2024
10 years 9 months
Ikeja, Nigeria

Data Analyst & Mathematics Instructor

Chrisland High School

  • Utilized data analytics to design interventions that improved student performance by 35%.
  • Developed and analyzed academic datasets to track learning outcomes.
  • Created factually accurate teaching materials and guided educators on data-informed methodologies.

Summary

Analytical and detail-driven Data Analyst, Educator, and AI Annotation Specialist with over a decade of experience in structured instruction, fact-checking, and technical documentation. Adept at performing high-accuracy AI data annotation, conducting data-driven analysis, and creating insightful visualizations that inform strategic decision-making. Known for precision, clarity, and a strong commitment to data integrity in both AI/ML model training and analytical reporting.

Skills

  • Data Analysis & Visualization (Python, Sql, Power Bi, Excel)

  • Ai/ml Data Annotation (Text, Audio, Image, Video)

  • Fact-checking & Quality Assurance

  • Statistical Modeling & Predictive Analytics

  • Instructional Design & Technical Writing

  • Process Optimization & Automation

  • Software Development & Scripting

  • Clear Communication & Stakeholder Engagement

  • Tools: Power Bi, Excel, Sql, Python, Tableau, Google Sheets

  • Techniques: Data Cleaning, Dashboard Design, Data Modeling, Etl

  • Concepts: Machine Learning, Cloud Data Technologies, Predictive Modeling

  • Soft Skills: Critical Thinking, Attention To Detail, Analytical Reasoning

Languages

English
Advanced

Education

Lagos State University

Bachelor of Science, Computer Science · Computer Science · Lagos, Nigeria

Certifications & licenses

Advanced Excel For Data Analysis

LinkedIn Learning

Data Analysis & Visualization With Python

Coursera

Microsoft Power BI Certification

Udemy

SQL For Data Science

DataCamp

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Antonio Cantarero malagón
Antonio Cantarero malagón

Data Analyst Intern

View Profile
Famuwagun Olaitan
Famuwagun Olaitan

Analyst, Campaign Analytics & Execution – Retention & Churn

View Profile
Philipp Grunert
Philipp Grunert

Data Scientist & Data Engineer

View Profile
Mathew Divine
Mathew Divine

Data Science Expert and AI Strategist

View Profile
Thomas Moser
Thomas Moser

Project Lead, IT-Consultant

View Profile
Mahmoud Trigui
Mahmoud Trigui

Data Scientist

View Profile
Jayana Shah
Jayana Shah

Implementation of Data Management Tool for LLM & Speech Technologies

View Profile
Eduard Van kleef
Eduard Van kleef

Workshop Leader 'Introduction to AI Development Tools'

View Profile
José maría Pacheco benítez
José maría Pacheco benítez

DNA and Data Analyst

View Profile
Serge Kalinin
Serge Kalinin

MLOps (machine learning operations)

View Profile
Ashkan Zadeh
Ashkan Zadeh

Microsoft Azure Senior Data Engineer / Senior Data Scientist

View Profile
Tinashe Erwin
Tinashe Erwin

Automation & Robotics Lecturer

View Profile
Kimmo Suotsalo
Kimmo Suotsalo

Freelance Data Scientist

View Profile
Manuel Pasieka
Manuel Pasieka

AI Engineer

View Profile
Rodrigo Herrán
Rodrigo Herrán

Data Engineer and Founder

View Profile
Naftali Ndeapo indongo
Naftali Ndeapo indongo

AI Data Trainer - Mathematics

View Profile
Yenal Yavuz
Yenal Yavuz

Shiny R Development

View Profile
Martin Schaefer
Martin Schaefer

Measurement data provisioning via LoRa

View Profile
William Nguyen
William Nguyen

Product Owner Frontend

View Profile
Ronald Foerster
Ronald Foerster

IT Consultant & Continuing Education

View Profile
Pappu Prasad
Pappu Prasad

Senior Cloud Consultant (AWS Services and Consulting)

View Profile
Mario Tuta
Mario Tuta

External Lecturer

View Profile
Eric Bouendeu
Eric Bouendeu

Quality Assurance Manager (QSV)

View Profile
Alexander Lechner
Alexander Lechner

Guest lecturer in Artificial Intelligence (Master’s Level)

View Profile
Firas Tlili
Firas Tlili

Detection Transformers Fine Tuning for Custom Object Detection

View Profile
Ekaansh Khosla
Ekaansh Khosla

Master thesis - LLM powered RAG System

View Profile
Fadi Shoaa
Fadi Shoaa

Document parser for picking lists (PDF & PNG)

View Profile
Christian Schulz
Christian Schulz

Data-Scientist/AI Engineer

View Profile
Martin Musiol
Martin Musiol

Product Owner AI Learning Platform

View Profile
Adiatu Mutairu
Adiatu Mutairu

AI Data Annotation Specialist

View Profile