SARAH FREIRE
DATA ANALYST
Roodepoort, South Africa |-| -
Curious and detail-oriented Data Analyst with hands-on experience in SQL, Excel, and Power BI. I enjoy
digging into data to find patterns that others might miss and turning them into stories that make sense.
Whether it’s building dashboards or solving problems with data, I bring clarity and insight to every project.
AREA OF EXPERTISE
SQL
Excel
Power BI
Tableau
R and R Studio
Sage 200
KEY ACHIEVEMENTS
Order Placement Process Flow. Led the development and execution of a process flow system on
Cognito Forms, specifically designed to capture the necessary documentation for order approval and
placement.
Scoring Model. Developed a comprehensive scoring model to evaluate sales reps based on profit
margins and performance KPIs, with custom weightings assigned to each KPI.
PROFESSIONAL EXPERIENCE
EC Security Services
Feb 2022 - current
Leveraged SQL to query and extract raw data for analysis.
Used Excel (including pivot tables and macros) to manipulate and evaluate data.
Developed interactive Power BI dashboards with real-time KPIs and performance metrics.
Designed intuitive, user-friendly reports that empowered stakeholders to explore data
independently.
Collaborated with departments like Sales, Marketing, Finance, HR, and Operations to deliver tailored
reports.
Ensured data accuracy, integrity, and relevance across all reporting.
Incorporated feedback to continuously enhance dashboards and meet evolving business needs.
Freelance Business Analyst - US based Company (Part-Time / Remote)
April 2025 - current
Provide ongoing business intelligence and reporting support to a US-based sales team.
Design and maintain custom sales dashboards and performance reports using Excel and Power BI.
Analyse and interpret sales trends, enabling strategic decision-making for client stakeholders.
Perform this role outside of full-time employment, demonstrating strong time management,
adaptability, and cross-time-zone collaboration.
EDUCATION
National Senior Certificate
St Mary’s Diocesan School for Girls, Pretoria
Full academic colours (awarded for overall average above 75%)
BSC International Business Administration
Catolica Lisbon School of Business and Economics
Scholarship awarded during 1st year
Lund University (3rd year exchange program)
ADDITIONAL INFORMATION
Languages: English, Afrikaans, Portuguese
Certifications: Business Intelligence and Data Analytics (Corporate Finance Institute)