Senior Power BI Developer

KANINI; Nashville (TN); On-site; USD 110,000 - 150,000; Full time

Job summary

KANINI is seeking an experienced Power BI Developer to join our BI/Data Analytics team in Nashville, TN, focused on a large-scale enterprise semantic model built on Microsoft Fabric and Snowflake. You will optimize performance, model design, and scalable report development across sales, labor, attendance, and financial reconciliation.

You will design semantic models with PBIP/TMDL, develop DAX measures, and collaborate with data engineering on Snowflake/dbt pipelines.

Qualifications

• 6+ years of hands-on Power BI experience (Desktop, Service, Premium/Fabric).
• Strong proficiency in DAX and Power Query (M).
• Deep understanding of semantic model design and performance tuning.
• Experience with incremental refresh and large fact tables.
• Experience with Snowflake and dbt for data transformations.
• Git-based Power BI development with PBIP/TMDL.
• Familiar with PowerShell and Power BI REST APIs.

Responsibilities

• Design, build, and maintain Power BI semantic models using TMDL and PBIP.
• Develop and optimize DAX measures, columns, hierarchies, and relationships.
• Implement incremental refresh policies for large historical datasets.
• Diagnose refresh failures and performance bottlenecks.
• Collaborate with data engineering on Snowflake/dbt pipelines.
• Manage deployments across DEV/PROD workspaces with Git.
• Use PowerShell and REST APIs to automate refresh operations.
• Perform root-cause analysis on data discrepancies and reporting issues.

Skills

Power BI

DAX

Power Query (M)

Semantic model design

Incremental refresh

Performance tuning

Git-based development

Root cause analysis

Stakeholder collaboration

Debugging

Tools

Snowflake

dbt

Power BI REST APIs

PBIP/TMDL format

VertiPaq Analyzer

DAX Studio

Tabular Editor

XMLA endpoint

PowerShell

Job description

We're looking for an experienced Power BI Developer to join our BI/Data Analytics team, supporting a large-scale enterprise semantic model built on Microsoft Fabric and Snowflake. You'll work on a mission-critical reporting platform serving sales, labor, attendance, and financial reconciliation across the organization, with a strong focus on performance optimization, data modeling best practices, and scalable report development.

Key Responsibilities

• Design, build, and maintain Power BI semantic models using TMDL and PBIP (Git-integrated) project format — no reliance on manual .pbix-only workflows.
• Develop and optimize DAX measures, calculated columns, hierarchies, and relationships across large (multi-GB, 80M+ row) fact tables.
• Implement and maintain incremental refresh policies (rolling window/incremental partitioning) to manage large historical datasets efficiently.
• Diagnose and resolve refresh failures, memory/capacity issues, and performance bottlenecks (VertiPaq Analyzer, DAX Studio, Fabric Capacity Metrics).
• Design and apply surrogate key strategies to reduce model size and improve query/relationship performance on high-cardinality columns.
• Build and maintain Power BI reports following established design/SSA standards (report chrome, slicers, drill-through, bookmarks, conditional formatting).
• Collaborate with data engineering teams on Snowflake/dbt pipelines feeding the semantic model; troubleshoot source-to-model data reconciliation issues.
• Manage deployments across DEV/PROD workspaces via deployment pipelines and Git-based version control (branching, PRs, code review).
• Use PowerShell / REST APIs (Enhanced Refresh API, XMLA endpoint) to automate refresh operations, monitor refresh history, and script recovery/reload procedures.
• Perform root cause analysis on data discrepancies, broken relationships, blank/missing values, and reporting anomalies; document findings clearly for stakeholders.
• Manage Row-Level Security (RLS), workspace/app permissions, and capacity (SKU) planning for Fabric/Premium.
• Partner with business stakeholders to translate requirements into scalable model and report designs; write clear documentation and user stories (Jira/Agile).

Required Skills & Experience

• 6+ years hands-on experience with Power BI (Desktop, Service, Premium/Fabric capacities).
• Strong proficiency in DAX and Power Query (M), including complex measures, time intelligence, and native query optimization.
• Deep understanding of semantic model design: star schema, relationships, cardinality, VertiPaq storage engine, and performance tuning techniques.
• Experience with incremental refresh, large fact table management, and memory/capacity troubleshooting in Premium/Fabric environments.
• Working knowledge of Snowflake (SQL, views, warehouses) and ideally dbt for source data transformations.
• Experience with Git-based Power BI development (PBIP/TMDL format), branching strategies, and pull request workflows.
• Familiarity with PowerShell and Power BI REST APIs for refresh automation and administration.
• Strong analytical and debugging skills — ability to trace issues from report visuals through DAX/relationships back to source data.

Nice to Have

• Experience with Microsoft Fabric (Lakehouse, Fabric Capacity Metrics, OneLake).
• Exposure to DAX Studio / Tabular Editor / VertiPaq Analyzer.
• Familiarity with Jira/Agile delivery processes.