Business Intelligence Power Bi

SHEWANGZAW TSEGAYE

Power BI / Business Intelligence (BI) Developer/Sr Data Analyst

*********@*****.*** 571-***-**** Stafford, VA

SUMMARY

Experienced Award-winning Power BI / Business Intelligence expert with over 10 years of experience in business intelligence, data modeling, and analytics. Proven success in transforming complex data into strategic insights, cutting manual processes by 40%, and delivering high-performance dashboards and reporting solutions. Strong background in SQL, DAX, and Azure, with a passion for data storytelling and cross-functional collaboration to drive business growth.

Results-driven Business Intelligence (BI) and Data Warehouse Professional with over 6 years of proven experience in end-to-end BI solution development and data architecture. Successfully delivered 4+ full-cycle BI projects, leveraging Tier-1 tools such as Tableau, Oracle OTBI, and Informatica to support enterprise reporting and analytics initiatives. Strong expertise in SQL, ETL development, data modeling, and information delivery architecture, with a solid foundation in data quality assurance and master data management

Key Achievements

Reduced report load times by 30% through advanced data model optimization.

Automated reporting workflows, cutting manual effort by 40% and saving 20+ team hours weekly.

Developed forecasting models that improved financial planning accuracy for finance and operations teams.

Led cross-functional teams to deliver large-scale BI projects on time and within budget.

Delivered Power BI training to 50+ users, enhancing organizational data literacy.

Recognized as Employee of the Quarter for innovative BI solutions.

Core Skills

Power BI, DAX, SQL (T-SQL), Data Modeling, Power Query, ETL (SSIS, Alteryx), Azure Synapse, Data Lakes, AWS, Dashboard Storytelling, Python, R, Stakeholder Management, Data Governance, Agile Methodology, Performance Tuning

Professional Experience

Power BI Developer/ Sr. Data Analyst

Dominion Company Arlington, Va — Apr 2018 – Present

Designed and maintained interactive dashboards for real-time insights and decision-making.

Created advanced DAX formulas and KPIs to enhance business metric tracking.

Integrated data from Azure SQL, Dynamics 365, APIs, and on-premise systems.

Automated data refresh and reporting, reducing manual workload by 40%.

Enhanced data model performance, cutting report load times by 30%.

Automated data validation and report generation using Python scripts, improving turnaround time for ad hoc reporting.

Integrated Python and SQL workflows to support clinical analytics, predictive trends, and quality metric tracking.

Delivered end-to-end BI solutions across 5+ major projects, leveraging Tableau, Oracle OTBI, and Informatica for enterprise-wide reporting, analytics, and data integration.

Played a key role in designing and maintaining data warehouse architecture, supporting both structured and semi-structured data across healthcare and claims systems.

Developed robust ETL pipelines using Informatica, ensuring data accuracy and consistency across staging, ODS, and reporting layers.

Created intuitive and insightful dashboards using Tableau, providing stakeholders with real-time visibility into operational KPIs, patient outcomes, and financial metrics.

Collaborated with data governance teams to implement master data management (MDM) strategies and ensured alignment with data quality standards.

Wrote and optimized complex SQL queries for data extraction, transformation, and performance tuning to meet demanding SLAs.

Participated in DW/BI solution architecture planning, helping modernize legacy reporting systems and reduce report delivery time by 40%.

Coordinated with QA teams to implement automated testing frameworks for ETL and reporting components, increasing reliability and minimizing production defects.

The wills group la Plata Maryland — Jan 2014 – Apr 2018

Built executive dashboards for sales and operations performance analysis.

Automated manual reporting, saving 20+ hours weekly across teams.

Designed scalable ETL processes and data warehouses.

Developed predictive models and ran A/B tests for marketing insights.

Supported the migration to modern cloud-based BI solutions.

BI Analyst

T-Mobile Company — Jan 2013 – Dec 2013

Created dashboards for churn and retention monitoring, reducing churn by 10%.

Standardized data quality practices for reliable analytics.

Used Power Query to automate reporting workflows.

Conducted competitive market analysis with integrated external data.

Education

Bachelor of Science in Computer Science

Unity University, Addis Ababa

Certifications

Microsoft Certified: Power BI Data Analyst Associate

Microsoft Certified Solutions Associate (MCSA)

Azure Database Administrator Associate

Data Science Specialization (Coursera)

Technical Proficiencies

BI Tools: Power BI, Tableau, SSRS

Databases: SQL Server, MySQL, PostgreSQL, Oracle

Languages: SQL, DAX, Python, R

Cloud Platforms: Azure (Synapse, Data Lakes), AWS

ETL Tools: SSIS, Alteryx

Soft Skills

Leadership, Communication, Critical Thinking, Collaboration, Adaptability, Accountability

Awards & Recognition

Employee of the Quarter – Dominion Company (2022)

Power BI Community Contributor Badge (2023)

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