Senior Power BI Developer(Tableau Experience Mandatory)

Spark Tek Inc

  • Owings MIlls, MD
  • 2 days ago

    Highlights

    Connect and integrate multiple data sources (databases, APIs, flat files, enterprise platforms) into unified reporting datasets. Apply data visualization best practices to make complex data intuitive — right chart for the right story, clean layouts, drill-down paths.

    Numbers & Facts

    LocationOwings MIlls, MD

    Description

    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

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