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# Senior Data Analyst / BI Developer

- **Company:** Harnham
- **Location:** Wolverhampton, UK
- **Experience:** Expert
- **Salary:** £50,000.0 - £70,000.0
- **Contract:** Permanent contract
- **Skills:** Adaptable Database Systems, Business Analytics Applications, Data Analysis, Microsoft Azure, Business Intelligence Development, Data Infrastructure, Extract Transform Load (ETL), Data Warehousing, Database Queries, Python (Programming Language), Microsoft Data Access Components, Performance Tuning, Query Optimization, Power BI, SQL Databases, Azure Data Factory, Powerquery, Microsoft Fabric, Data Analytics, Tools for Reporting
- **Published:** October 7, 2026
- **Apply:** https://www.reed.co.uk/jobs/senior-data-analyst-bi-developer/57428260

## About the Role

* Strong experience in BI development or data analytics, with ownership of reporting solutions.
 * Advanced Power BI skills, including DAX, Power Query, semantic modelling and performance optimisation.
 * Strong SQL skills, including complex transformations, query optimisation and troubleshooting.
 * Experience building dimensional data models and developing ETL/ELT processes.
 * Experience with Microsoft Fabric, Azure data technologies or comparable modern data platforms.
 * A strong understanding of commercial metrics, including revenue, profit, margin and forecasting.
 * Confidence managing competing priorities, challenging constructively and communicating with technical and non-technical stakeholders.
 * Experience supporting or mentoring junior colleagues.

Experience within retail, wholesale or a similarly fast-moving commercial environment would be advantageous., * Communication

 * marketing
 * reporting
 * R
 * econometrics
 * dashboarding
 * power bi
 * MMM
 * Python
 * SQL

## Description

An opportunity to join a growing national business investing in its data and analytics capabilities. You'll take ownership of BI reporting, work with commercial stakeholders and help develop a modern Microsoft data platform., Reporting to the Head of Data & Analytics, you'll combine hands-on BI development with commercial analysis and stakeholder engagement.

Your responsibilities will include:

 * Designing, developing and maintaining Power BI dashboards, reports and semantic models.
 * Building and optimising SQL queries and scalable data models to support reporting and analysis.
 * Supporting the development of Microsoft Fabric and Azure capabilities, including ETL/ELT processes.
 * Partnering with pricing, product, marketing, finance and operations teams to understand requirements and prioritise delivery.
 * Analysing revenue, margins, customer behaviour and operational performance to identify opportunities and support decisions.
 * Improving reporting automation, self-service analytics, data quality and governance.
 * Presenting findings and recommendations clearly to senior stakeholders.
 * Mentoring junior colleagues and sharing technical best practice.