Tableau / Power BI Engineer

Tata Consultancy Services; Sunnyvale (CA); On-site; USD 64,000 - 110,000; Full time

Job summary

Tata Consultancy Services is seeking a BI specialist in California to translate business requirements into semantic models and dashboards. You will design star/snowflake models, author DAX and Tableau calculations, and build data pipelines using Power Query and Tableau Prep.

The role involves performance optimization, governance, and platform administration across Power BI Service and Tableau Server. Strong SQL and data visualization expertise are required.

Qualifications

• Proven experience designing semantic models and dashboards for BI platforms.
• Strong SQL skills and expertise in DAX for Power BI and Tableau calculations.
• Hands-on with data transformations, data quality, and governance practices.

Responsibilities

• Translate requirements into semantic models, datasets, and dashboards.
• Design dimensional models and author robust calculations in Power BI and Tableau.
• Build data pipelines with Power Query and Tableau Prep; ensure data quality.
• Optimize performance and manage security, governance, and lineage.
• Administer Power BI Service/Fabric and Tableau Server/Cloud; monitor usage.
• Establish CI/CD, release management, and automated tests for BI assets.
• Drive cost and capacity planning; enable self-service for analysts.
• Migrate assets between Tableau and Power BI when needed.

Skills

Tableau

Power BI

DAX

Power Query

Tableau Prep

VertiPaq

Tools

Tableau Server Client (TSC)

Tableau APIs

REST/Metadata APIs

Job description

Roles & Responsibilities

• Partner with stakeholders to translate requirements into semantic models, datasets, and intuitive dashboards.


• Design star/snowflake dimensional models; author robust SQL, DAX (Power BI), and LOD/table calculations (Tableau).


• Build data transformations with Power Query (M), Tableau Prep/flows, and warehouse-native pipelines; ensure data quality.


• Optimize performance: vertiPaq memory, aggregations, partitions (Power BI); extracts, LOD usage, context filters (Tableau).


• Implement security and governance: RLS/OLS (Power BI), row/column-level security (Tableau), certified datasets, lineage, documentation.


• Administer platforms: Power BI Service/Fabric (workspaces, capacities, deployment pipelines) and Tableau Server/Cloud (sites, projects, permissions).


• Establish CI/CD and release management using ALM Toolkit/Tabular Editor (Power BI) and REST/Metadata APIs (both); versioning and automated tests.


• Monitor usage and reliability; drive cost/capacity planning, query folding/pushdown, and model tuning.


• Enable self-service: standards, templates, training, and review processes for analysts and business teams.


• As needed, migrate assets between Tableau and Power BI: audit, translate calculations, validate visuals/data, orchestrate phased cutover and decommission.

Job Description

Must Have Technical/Functional Skills:

• Digital : BI Data Visualization - Tableau


• Tableau (Analytics Tool)


• Digital : Microsoft Power BI


• Tabular models


• DAX


• VertiPaq/aggregations/partitions


• Query folding


• Power Query


• DAX


• Hyper extracts


• Tableau APIs


• TSC (Tableau Server Client)


• Usage/Content admin


• Service/Fabric


• Dataflows


• Deployment Pipelines


• Gateways


• RLS/OLS


• Workspaces/Capacity

Salary Range: $64,000 - $110,000 a year