Detail-Oriented Data Entry Specialist with Excel Expertise

WINNIFRED OKEKE

Location: Lagos, Nigeria

Email:******************@*****.***

Phone: +234 915-***-****

Medium Portfolio:https://medium.com/@winnifredokeke2425 LinkedIn: https://www.linkedin.com/in/okeke-Winnifred-15426a289 PROFESSIONAL SUMMARY

Detail-oriented Data Analyst with hands-on experience in Power BI and SQL, specializing in transforming complex datasets into actionable insights. Skilled in data modeling, visualization, and performance analysis to support business strategy and decision making. Proven ability to design interactive dashboards, develop KPIs, and uncover trends that enhance operational efficiency. Strong analytical mindset with a commitment to delivering accurate, data-driven solutions.

CORE SKILLS

Data Analytics: Data Analysis & Interpretation, Data Visualization (Power BI), SQL (Joins, Aggregations, Queries), Data Cleaning & Transformation (Power Query), Dashboard Development, DAX (Data Analysis Expressions), Data Modeling, Microsoft Excel

(Advanced), Reporting & KPI Development, Statistical Analysis (Basic), Problem Solving & Critical Thinking, Attention to Detail

Administrative Support: Email & Calendar Management, Meeting Scheduling, Project Coordination, Data Entry, Online Research

Professional Skills: Communication, Time Management, Attention to Detail, Organization, Customer Support

PROFESSIONALEXPERIENCE

Executive / AdministrativeVirtualAssistant(Remote) ANN Digital District – Lagos, NigeriaAug2025

• Managed client email inboxes, calendars, and meeting schedules for smooth daily operations.

• Performed data research, data entry, and basic reporting using Excel.

• Created simplevisualcontentusingCanvaandeditedshort-formvideoswithcapcut DATA ANALYTICS EXPERIENCE

• Cleaned and organized raw datasets for analysis.

• Used Excel formulas and functions to analyze data and extract insights.

• Built Pivot Tables and interactive dashboards to summarize findings.

• Developed interactive dashboards in Power BI to visualize key metrics such as sales revenue, quantity sold, and business performance trends.

• Extracted and analyzed data using SQL queries (joins, aggregations, filtering) from relational databases.

• Cleaned and transformed raw data using Power Query to ensure accuracy and consistency in reporting.

• Built and managed data models by defining relationships between multiple tables for efficient analysis.

• Identified insights and trends from data, helping to improve business performance and reporting efficiency.

EDUCATION

Higher National Diploma (Distinction) – Science Laboratory Technology Petroleum Training Institute, Effurun, Delta State, 2018 – 2021 National Diploma (Upper Credit)– Science Laboratory Technology Petroleum Training Institute, Effurun, Delta State, 2015 – 2017 CERTIFICATIONS

• General Virtual Assistant Certification – ANN Digital District (2025)

• Data Analytics – Dataleum Academy

REFEREES:

MR. ADEKUNLE ABIODUN, AIICO Insurance Plc Ikeja.(070********) MR. KESIENA ESIRI HENRY, Asst. Head of Department Petroleum Training Institute.(070********)

MRS. ANNEILA CALMA, Coach at Ann Digital District.(070********

Contact this candidate