Senior Business Intelligence Developer

EXL; New Jersey; On-site; USD 125,000 - 150,000; Full time

Job summary

EXL is seeking an experienced BI Architect to lead architecture conversations with clients and act as the technical authority on data and analytics platforms. You will design, build, and optimise enterprise Power BI semantic models and Tableau data sources for scalable performance and maintainability.

You will write and optimise complex DAX, M/Power Query, and SQL queries, diagnose data model issues, and architect dimensional models that support multiple BI tools.

Qualifications

• Lead BI architecture and data strategy conversations with clients
• Design, build, and optimise enterprise Power BI semantic models and Tableau data sources
• Write and optimise complex DAX, M/Power Query, and SQL queries for high-performance reporting
• Diagnose and resolve data model issues and upstream data quality problems
• Architect star schema data models and semantic layers used across BI tools
• Drive self-service BI adoption with governed metrics and dataset certification
• Define BI deployment standards, CI/CD pipelines, and release governance
• Collaborate with data engineering to shape analytics-ready data structures
• Establish data governance frameworks including quality, metadata, access controls, and KPI standardisation
• Mentor BI developers on DAX, SQL, and design best practices

Responsibilities

• Lead architecture discussions with clients to define BI blueprint
• Design scalable semantic models for Power BI and Tableau
• Develop and optimise DAX, SQL, and M/Power Query code
• Resolve data model performance and data quality issues
• Define dimensional models and semantic layers for multiple BI tools
• Promote self-service BI while maintaining governance and security
• Implement CI/CD pipelines for BI deployments and governance
• Partner with data engineering to improve data readiness
• Establish data governance and KPI standards across business units
• Mentor BI team members through code reviews and design guidance

Skills

Power BI

Tableau

SQL

DAX

M Power Query

Dimensional modelling

BI governance

CI/CD pipelines

Snowflake

Tools

Power BI Service governance

Tableau Server

Job description

• 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.
  
  
  • 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.

GOOD TO HAVE

• Snowflake: query optimisation, warehouse sizing, and integrating Snowflake with Power BI or Tableau via DirectQuery or native connectors.


• Sigma Computing: cloud-native self-service analytics on Snowflake; governed metrics, semantic model integration, and business user enablement.


• Experience connecting Sigma Computing with existing Power BI and Tableau ecosystems without creating governance gaps or data duplication.


• Working knowledge of policy lifecycle, claims, underwriting, premiums, loss ratios, and combined ratio.


• Ability to translate insurance business questions into structured KPIs, metrics hierarchies, and dashboard designs.

Salary range - 125,000 - 150,000

The posted range is the hiring range for this role — a subset of the broader range available to employees over time — and reflects base salary across our national hiring scale. Final offers are based on several factors, including the candidate's skills and experience, internal pay equity, work location, market conditions for the role, and the specific scope and responsibilities of the position. The top of the range is reserved for candidates who notably exceed the requirements; the lower end applies to those with less experience or fewer preferred qualifications. For positions based in higher-cost zones (e.g., California, New York, New Jersey), actual compensation may exceed the posted range; your recruiter will share specifics during the process.

For more information on benefits and what we offer please visit us at https://www.exlservice.com/us-careers-and-benefits