Senior Power BI Developer(Tableau Experience Mandatory) contract jobs

Job Title: Senior Power BI Developer(Tableau Experience Mandatory)

Location: Phailadelphia, PA – Onsite

Rate: $60/hour C2C.

 

Minimum 5+ Years of Recent Experience in Tableau is Mandatory

 

Roles and Responsibilities:

 

• Design, develop, and maintain reports and dashboards in Tableau and Power BI for operational and executive audiences.
• Write and optimize complex SQL queries for data extraction, aggregation, joins across large datasets, and performance tuning.
• Connect and integrate multiple data sources (databases, APIs, flat files, enterprise platforms) into unified reporting datasets.
• Build and maintain scripted data normalization and transformation pipelines (e.g., Python) to standardize, cleanse, and reconcile data from disparate systems.
• Aggregate data across domains to produce consistent, reliable metrics and KPIs.
• Apply data visualization best practices to make complex data intuitive — right chart for the right story, clean layouts, drill-down paths.
• Partner with business and technology stakeholders to gather reporting requirements and translate them into scalable reporting products.
• Automate recurring manual reporting processes to improve speed, consistency, and scalability.
• Validate data quality and investigate discrepancies across source systems; document data lineage and reporting logic.
• Strong SQL skills — complex joins, aggregations, window functions, query optimization.
• Proven hands-on experience building dashboards in Tableau and Power BI.
• Experience aggregating data and connecting multiple data sources into consolidated reporting datasets.
• Experience with script-based data normalization and transformation (Python or similar).
• Solid understanding of data visualization principles and dashboard design best practices.
• Ability to work with stakeholders to translate business questions into reporting requirements.
• Strong attention to detail and commitment to data accuracy.