Walgama Jayasekara

United States

@rohanajayasekara

Powe BI developer/ETL developer, Business Systems Analyst, Data Analyst.

Personal Information

rohanajayasekara@gmail.com
+1-3095504426

Badges

Problem Solving
Python
Sql

Certifications

Work Experience

  • Power BI Developer/Data Analyst

    Ceylinco Life Insurance PLC•  March 2001 - December 2023•  Colombo Sri Lanka

    Developed interactive dashboards with DAX and Star Schema data models, increasing user engagement by 30%. • Streamlined report generation processes, reducing preparation time by 40%. • Enforced data governance and compliance by implementing row-level security (RLS) roles in Power BI. • Led collaboration with data warehouse teams to improve data integrity and normalization, reducing redundancy by 35%. • Designed and managed the reporting environment, data sources, and metadata. • Created advanced dashboards for tracking KPIs, integrating ETL processes, and applying DAX functions for data visualizations. • Migrated from legacy reporting systems to modern data solutions, improving report reliability with automated refreshes.

Education

  • University of Minnesota - Duluth

    Data Science, Data Visualization and Analytics Boot Camp•  April 2024 - September 2024

  • University of Colombo

    Information Technology, MS•  January 2004 - January 2006

  • University of Kelaniya

    Industrial Management & Operation Research , BS•  August 1996 - September 1998

Skills

SQL
Algorithm
Data Structure
Python(Intermediate)