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Promise Emefile

@promiseemefile

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Data Analyst experienced in collecting, cleaning and analysing data to support business decisions.

Nigeria

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What I'm looking for

I’m looking for a data-focused role where I can build trusted reporting and dashboards, investigate trends with SQL and Python, and support operational decision-making—especially in fast-paced environments with clear stakeholder collaboration.

I’m a detail-oriented, analytical Junior Data Analyst who collects, cleans, and organizes data from multiple sources, then uses it to support business operations. I turn findings into actionable insight through reports and dashboards, with a strong focus on data accuracy and documentation.

In my recent Data Analyst Intern role, I helped extract, transform, and validate data with SQL, and supported stakeholders with weekly and monthly reporting. As a freelance Data Analyst, I’ve worked across multiple PostgreSQL databases, resolved critical data quality issues, and built Metabase dashboards that deliver daily, weekly, and monthly reporting across key business functions—boosting operations by 30%.

I also build models and analytics projects, from CLV forecasting using BG/NBD and Gamma-Gamma to churn prediction with Logistic Regression and Random Forest, plus customer segmentation using RFM features and K-Means with PCA. I enjoy presenting insights clearly to both technical and non-technical stakeholders and continuously sharpening my toolkit with SQL, Python, and BI platforms.

Experience

Work history, roles, and key accomplishments

Current

Data Analyst (Freelance)

Current

247 Sport

Apr 2026 - Present (3 months)

Collected, cleaned, and organized data across 6 PostgreSQL databases, resolving multiple critical data quality issues to improve accuracy and consistency. Built and maintained 8 Metabase dashboards for daily/weekly/monthly reporting and tracked 5 core KPIs across teams, contributing to a reported 30% operations improvement.

PostgreSQL Data Cleaning Data Quality Data Validation Metabase Dashboarding KPI Tracking Business Reporting

Data Analyst Tutor

Freelance

Jan 2026 - Mar 2026 (2 months)

Provided one-on-one and group tutoring in data analysis, Python, SQL, and Power BI. Helped students complete assignments and projects while simplifying complex concepts for beginners and intermediate learners.

Data Analytics Tutoring Python SQL Power BI Instructional Support

Data Analyst Intern

Primo Academy

May 2025 - Aug 2025 (3 months)

Assisted with collecting, cleaning, and organizing data from CRM systems, call logs, and operational tools. Prepared weekly/monthly reports and dashboards, wrote SQL queries to extract/transform/validate data, and analyzed trends using Excel and Python for stakeholder presentations.

Data Collection Data Cleaning SQL Data Validation Reporting Dashboarding Excel Python Trend Analysis Stakeholder Communication

Education

Degrees, certifications, and relevant coursework

Primo Academy

Data Science, Data Engineering & Machine Learning, Data Science

2024 - 2025

Activities and societies: Primo Academy — Data Science, Data Engineering & Machine Learning (2024–2025)

Completed Primo Academy coursework in Data Science, Data Engineering, and Machine Learning. Covered practical topics relevant to data engineering and analytics workflows.

Udemy

Modern Data Analyst (SQL, Python, ChatGPT for Data Analysis), Data Analysis

2024 - 2024

Activities and societies: Udemy — Modern Data Analyst (SQL, Python, ChatGPT for Data Analysis) (2024)

Completed an Udemy Modern Data Analyst course focused on SQL, Python, and ChatGPT for data analysis. Built skills for modern data analysis workflows and reporting.

Udemy

Data Analysis for Beginners, Data Analysis

2023 - 2023

Activities and societies: Udemy — Data Analysis for Beginners (2023)

Completed an Udemy Data Analysis for Beginners course. Covered foundational data analysis concepts and introductory tooling.

Les Cours Sonou University

Bachelor of Science, Economics

Earned a B.Sc. in Economics from Les Cours Sonou University in 2019. Focused on economics coursework as part of the undergraduate degree program.

Udemy

AI Engineer Core Track: LLM Engineering, RAG, QLoRA, Agents, LLM Engineering

Activities and societies: Udemy - AI Engineer Core Track: LLM Engineering, RAG, QLoRA, Agents

Completed an Udemy AI Engineer core track course covering LLM engineering topics. Focused on practical components such as RAG and quantization techniques for LLMs.

Udemy

Python for Data Science & Machine Learning Bootcamp, Data Science

2024 - 2024

Activities and societies: Udemy — Python for Data Science & Machine Learning Bootcamp (2024)

Completed an Udemy Python for Data Science & Machine Learning bootcamp. Trained practical Python skills for data science and machine learning tasks.

DeepLearning.AI

Agentic AI & Multi-Agent Systems (course series), Artificial Intelligence

Activities and societies: DeepLearning.AI — Agentic AI with Andrew NG; Multi AI Agent Systems with CrewAI; Evaluating AI Agents with Arize Phoenix

Completed multiple DeepLearning.AI courses on agentic AI and evaluating AI agents. Covered topics including agent systems, multi-agent workflows, and evaluation using Arize Phoenix.