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# BI Developer (12-18 month FTC)

- **Company:** Harnham
- **Location:** London, UK
- **Salary:** £50,000.0 - £60,000.0
- **Contract:** Temporary contract
- **Skills:** Data Architecture, Data Infrastructure, Data Integration, Extract Transform Load (ETL), Data Systems, Data Warehousing, Python (Programming Language), Microsoft SQL Server, SQL Stored Procedures, SQL Server Analysis Services, Transact-SQL, Scripting, Azure Data Factory, Data Pipelines
- **Published:** October 23, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/bi-developer-12-18-month-ftc/53482235

## About the Role

Strong commercial experience with SQL Server and T-SQL development
Experience building and maintaining ETL processes and data pipelines
Solid understanding of data warehousing concepts and dimensional modelling
Experience working with semantic models, tabular models, star schemas, Kimball methodologies, or similar data modelling approaches
Exposure to SSAS, DAX, and BI solution development
Experience working across different data architectures and technology environments
Strong problem-solving and stakeholder communication skills
Ability to work independently and adapt to changing priorities
Python development or scripting experience
Azure data platform exposure
Consultancy or client-facing project delivery experience

## Description

An exciting opportunity has arisen for a BI Developer to join a growing data consultancy on a fixed-term contract. This role offers the chance to work on complex data integration and business intelligence projects for high-profile clients, helping organisations unlock greater value from their data. With exposure to a variety of technology environments and the opportunity to take ownership of delivery, this is an excellent role for someone who enjoys solving data challenges in a fast-paced, client-focused environment.
The Company
Our client is a specialist data and technology consultancy that helps organisations improve reporting, analytics, and decision-making through modern data solutions. They work with complex data environments, supporting clients with data integration, business intelligence, and data platform development.
The Role
As a BI Developer, you will play a key role in designing, developing, and maintaining business intelligence solutions across a range of client projects.
Responsibilities include:
Developing and maintaining ETL pipelines and data integration processes
Writing, optimising, and troubleshooting complex T-SQL queries and stored procedures
Building and enhancing semantic and tabular data models
Supporting SSAS cube development and DAX calculations
Applying dimensional modelling and data warehousing best practices
Collaborating with business and data analysts to translate requirements into technical solutions
Investigating data issues and supporting users with technical queries
Contributing to testing, quality assurance, and solution design activities
Working within a consultancy environment where priorities and requirements can evolve