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Celestina O.

Celestina O.

Data Scientist · Mid-Level

Nigeria · Rate on request

Professional Overview

I am a Data Analyst and AI Automation Specialist with practical experience in data analysis, workflow automation, and AI-powered solutions. I use Python and Excel to clean, organize, analyze, and interpret datasets, transforming raw data into actionable insights. My projects include a pizza sales analysis project focused on identifying sales trends and supporting data-driven decisions, and an n8n-based job application tracking system that automates applicant processing, categorizes candidates by experience level, manages recruitment statuses, and supports automated email notifications. I also work across AI annotation, data labeling, chatbot workflows, conversational AI, and voice agent solutions. My technical interests include building intelligent workflows, streamlining repetitive processes, and improving operational efficiency through automation. I combine analytical thinking, structured problem-solving, attention to detail, and a results-driven approach to developing practical solutions for business and operational challenges.

Areas of Expertise

Data Science & Analytics

Extract business insights from raw data using statistical modelling, predictive analytics, A/B testing, and interactive dashboards.

AI & Machine Learning Engineers

Design, train, and ship production ML models — from data pipelines to model inference at scale. Covers supervised learning, neural networks, LLM integration, and model optimisation.

Automation & AI Workflows

Build intelligent automation pipelines, integrate AI APIs into existing tools, and replace manual workflows with agentic AI systems.

Open to

Contract Part-time Freelance

Experience Level

Mid-Level

Current location

Nigeria

Time Zone

Lagos UTC+1

Primary Work Language

English

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