BI Lead (Power BI / Tableau)

Role: BI Lead (Power BI / Tableau)

Location: Jersey City, NJ (Hybrid)

KEY RESPONSIBILITIES

· Lead BI architecture and solution design conversations with clients, acting as the primary technical authority on data and analytics platforms.

· Design, build, and optimise Power BI semantic models and Tableau data sources for enterprise-scale performance and maintainability.

· Write and optimise complex DAX measures, M/Power Query transformations, and SQL queries to support accurate, high-performance reporting.

· Diagnose and resolve data model issues — slow DAX, broken relationships, cardinality problems, and upstream data quality issues — quickly and systematically.

· Architect dimensional data models (star schema, fact/dimension design) and semantic layers consumed across multiple BI tools.

· Drive self-service BI capability: certify datasets, define governed metrics, and build enablement programmes so business teams can explore data independently.

· Define BI deployment standards, CI/CD pipelines, and release governance to ensure reliable and secure analytics delivery.

· Partner with data engineering teams to design analytics-ready data structures and resolve data issues at source.

· Establish data governance frameworks covering data quality standards, metadata management, access controls, and KPI standardisation across business units.

· Mentor BI developers through code and model reviews, sharing DAX, SQL, and design best practices to raise overall team capability.

MUST-HAVE SKILLS

Power BI

· Semantic model design and optimisation: star-schema modelling, reducing cardinality, managing relationships, aggregations, and composite models.

· Advanced DAX: efficient, reusable measures; evaluation context; CALCULATE; iterator functions; time intelligence patterns.

· M / Power Query: advanced transformations, query folding, incremental refresh, parameter-driven pipelines.

· Power BI Service governance: certified datasets, deployment pipelines, workspaces, row-level security, gateways, and refresh scheduling.

· Self-service BI: promoting dataset reuse and enabling business users to build their own reports without IT dependency.

Tableau

· Dashboard and data source design for enterprise-scale reporting.

· Tableau Server / Tableau Cloud governance, published data sources, and performance optimisation.

SQL & Data Architecture

· Strong SQL: complex queries, CTEs, window functions, query optimisation, and reading execution plans.

· Data warehouse and dimensional modelling: fact/dimension design, schema validation, and data lineage.

· ETL/ELT understanding: diagnosing and resolving upstream data issues that affect BI layers.

Communication & Stakeholder Engagement

· Comfortable presenting architecture, data strategy, and roadmaps to client executives and technical leaders.

· Skilled at requirements gathering from non-technical stakeholders and translating them into scalable BI solutions.

· Experience leading architecture reviews, discovery workshops, and solution design sessions.