Hello, I am

Sasmika Wickramarathna

Data Analyst &
Business Analytics Undergrad

I am a 3rd-year Business Analytics undergraduate at the University of Moratuwa, specializing in Data Analytics, Machine Learning, and Business Intelligence solutions.

With hands-on experience in predictive modeling, statistical analysis, and interactive dashboard design (Power BI/Tableau), I am passionate about transforming complex business challenges into data-driven strategic decisions.

View My Work Contact Me

Work Experience

Data Analyst Intern

Jan 2026 – Present

Designed and delivered 12+ Power BI dashboards across 20+ product categories for leading corporate clients, providing stakeholders with real-time visibility into KPIs, sales performance, and operational insights.
Performed data extraction, cleaning, transformation, and modeling using Power Query, SQL, and DAX to ensure accurate and reliable reporting.
Designed executive-level dashboards and reports that provided actionable insights into sales performance, inventory trends, and business operations.
Collaborated with cross-functional teams and business stakeholders to gather requirements and translate them into effective visual analytics solutions.
Improved data-driven decision-making by delivering clear, interactive, and user-friendly business intelligence dashboards tailored to client needs.

What I am Good At

Analytics & Technology

Data Analytics

Transforming raw data into actionable business insights through statistical analysis, exploratory data analysis, hypothesis testing, and data-driven decision-making.

PythonPandasNumPyR

Data Engineering

Building reliable data pipelines, performing ETL processes, data cleaning, transformation, integration, and maintaining high-quality datasets for analytics and reporting.

SQLMySQLPower Query

Business Intelligence

Designing interactive dashboards, KPI monitoring systems, executive reports, and visual analytics solutions to support strategic decision-making.

Power BITableauDAX

Machine Learning

Developing predictive models using regression, classification, ensemble learning, feature engineering, model evaluation, and optimization techniques.

Scikit-LearnPython

Data Management & Modeling

Designing database structures, data models, relational schemas, query optimization, and ensuring efficient storage and retrieval of business data.

SQLMySQLSQLite

Business Analysis

Gathering requirements, analyzing business processes, identifying opportunities for improvement, and translating stakeholder needs into analytics solutions.

Requirements GatheringProcess MappingDocumentation

Business & Professional Skills

Stakeholder Communication

Collaborating with clients and cross-functional teams to understand requirements and communicate analytical findings effectively.

Problem Solving

Applying critical thinking, root cause analysis, and data-driven approaches to solve complex business challenges.

Project Execution

Managing multiple projects under tight deadlines while maintaining quality, accuracy, and attention to detail. Capable of working in high-stress environments.

Team Collaboration

Working effectively with diverse teams to deliver analytics, reporting, and technology solutions aligned with business objectives.

My Education

Currently pursuing a BBSc (Hons) in Business Analytics with a Minor in ERP (2023 – Present). Previously, I completed my GCE Advanced Level, achieving 3 'A' passes in ICT, Economics, and Accounting with a Z-Score of 2.1787. I also secured 9 'A' passes at my GCE Ordinary Level examinations.

University of Moratuwa

Ananda College

Kalutara Vidyalaya

Featured Projects

Media Factory Business Intelligence Dashboards

January 2026 - Present

A professional Power BI dashboard collection I created during my Media Factory data analyst internship, covering KPI tracking, sales performance, product categories, and operational insights.

Power BI DAX Power Query Business Intelligence