Power BI Developer & Data Modeller

6-Month Contract | £450/day Inside IR35 | London Hybrid (2-3 Days Per Week)

We're looking for an experienced Power BI Developer & Data Modeller to join a growing data function that is investing heavily in its reporting, analytics and cloud data capabilities. This contract role will play a key part in transforming complex business data into meaningful insights through modern BI solutions and scalable data models.

Working within a collaborative data team, you'll partner with Data Engineers, Product Owners and business stakeholders to deliver enterprise-grade reporting solutions while helping shape the underlying data structures that support them. You'll have exposure to modern cloud-based data platforms, including Databricks and Microsoft technologies, and will contribute across the entire analytics lifecycle from requirements gathering through to dashboard delivery.

• Develop engaging Power BI dashboards and reporting solutions for a variety of business functions.
• Create and manage semantic layers, datasets and reusable reporting assets.
• Build advanced DAX measures, calculations and business logic.
• Improve dashboard performance, scalability and end-user experience.
• Apply data security controls and reporting governance best practices.
• Support testing, deployment and ongoing optimisation of reporting products.

• Design robust dimensional models to enable accurate and consistent reporting.
• Build and maintain fact and dimension structures aligned to business needs.
• Work closely with stakeholders to define KPIs, measures and reporting standards.
• Ensure data accuracy, consistency and trust across analytical solutions.

• Write and optimise SQL queries against large-scale cloud datasets.
• Collaborate with engineering teams to create curated reporting-ready data products.
• Support data validation, reconciliation and quality assurance activities.
• Contribute to the development of scalable analytics solutions within a modern data platform environment.

• Gather, analyse and document business reporting requirements.
• Translate business challenges into practical dashboard and analytics solutions.
• Deliver meaningful insight and recommendations to stakeholders.
• Support users through training, adoption and knowledge sharing.

We're interested in candidates who can demonstrate strong commercial experience across business intelligence, reporting and data modelling disciplines.

• Proven expertise delivering Power BI solutions in enterprise environments.
• Advanced DAX development experience.
• Strong SQL querying and performance optimisation skills.
• Experience designing and maintaining analytical data models.
• Exposure to large, complex datasets and enterprise reporting environments.
• Knowledge of Power BI Service, workspace management and deployment processes.
• Understanding of data governance, security and access control principles.
• Experience working with Databricks, Microsoft Fabric or similar modern data platforms.

• Dimensional modelling methodologies.
• Star schema design principles.
• Fact and dimension table development.
• Slowly Changing Dimension (SCD) concepts.
• KPI framework and metric definition experience.

• Strong communication skills with both technical and non-technical audiences.
• Ability to gather requirements and influence reporting outcomes.
• Excellent analytical and problem-solving capabilities.
• Comfortable working across multiple workstreams in a fast-paced environment.

Experience in any of the following would be advantageous:

• Databricks Lakehouse architecture.
• Microsoft Fabric.
• Python for data analysis and automation.
• CI/CD, DevOps or release management practices.
• Experience within construction, infrastructure, engineering, property or project-based organisations.
• Microsoft Power BI certifications.

Role: Power BI Developer & Data Modeller
Contract Length: Initial 6 Months
Rate: £450 per day
IR35 Status: Inside IR35
Location: London
Working Pattern: Hybrid, 2-3 days per week onsite
Start Date: ASAP

This is an excellent opportunity for a Power BI specialist who enjoys combining dashboard development, data modelling and stakeholder engagement within a modern cloud data environment. You'll be joining a high-performing team delivering impactful data solutions that drive business decision-making across the organisation.