Power BI Developer

Power BI Developer - £450 - £500 a day - London/ Hybrid - Central Government -  6 month initial contract

We are seeking an experienced Power BI Developer to support the development and enhancement of reporting and analytical capabilities across a range of digital transformation and business improvement initiatives.

The successful candidate will work closely with business stakeholders, subject matter experts, delivery teams and technical colleagues to design and implement high-quality reporting solutions that provide trusted management information and actionable insights.

This is a hands-on role requiring strong technical expertise in Microsoft Power BI, data modelling and analytics, alongside the ability to engage effectively with both technical and non-technical stakeholders.

The role will contribute to improving how data is used across the organisation, enabling evidence-based decision-making and supporting strategic, operational and regulatory outcomes.

Key Responsibilities

The successful candidate will:

Design, develop and maintain Power BI reports, dashboards and data visualisations that support organisational decision-making.
Work with stakeholders to gather, analyse and document reporting requirements.
Translate business needs into practical and user-centred reporting solutions.
Develop and maintain scalable semantic models and datasets using Power BI best practice.
Create and optimise DAX measures, calculations and business metrics.
Use Power Query and data transformation techniques to prepare data from multiple sources.
Connect and integrate data from a variety of systems, including SQL databases, spreadsheets, APIs and other corporate applications.
Support the definition and implementation of key performance indicators (KPIs) and management information frameworks.
Review and improve existing reports to enhance usability, accessibility and performance.
Implement appropriate security controls, including Row Level Security (RLS), where required.
Publish and manage reports and datasets within the Power BI Service.
Support data refresh processes, gateways, workspace administration and deployment activities.
Investigate and resolve data quality, performance and reporting issues.
Maintain clear documentation of data models, reporting logic and technical designs.
Contribute to data governance, reporting standards and development best practice.
Provide knowledge transfer and guidance to internal teams to support long-term capability development.

Essential Experience and Skills

Applicants must demonstrate:

Significant experience designing and developing solutions using Microsoft Power BI.
Experience working with Dataverse, Dynamics 365 and Power Platform data sources to develop reporting and analytical solutions.
Strong experience creating data models and semantic layers to support reporting and analytics.
Advanced knowledge of DAX and experience developing complex calculations and measures.
Strong experience using Power Query and data transformation techniques.
Experience working with SQL and relational databases.
Understanding of data modelling principles, including star schemas, dimensions, fact tables and relationships.
Experience producing reporting solutions for a range of business audiences.
Strong understanding of dashboard design and data visualisation best practice.
Experience administering and supporting solutions within the Power BI Service.
Strong analytical and problem-solving skills.
The ability to understand complex business requirements and translate them into effective technical solutions.
Excellent written and verbal communication skills.
Experience working collaboratively with technical specialists, business users and senior stakeholders.
Ability to manage competing priorities and deliver quality outcomes within agreed timescales.

Desirable Experience

The following would be advantageous:

Experience of Microsoft Fabric.
Experience of Azure data services and cloud-based analytics platforms.
Experience working with data warehouses, data lakes or modern data architectures.
Experience implementing reporting governance and data quality controls.
Experience developing API-based integrations and working with multiple data sources.
Experience working in Agile delivery environments.
Experience supporting digital transformation, data or analytics programmes.
Relevant Microsoft certifications, such as PL-300: Microsoft Power BI Data Analyst Associate.
Experience working within the UK public sector or a regulated environment.

Key Outcomes

The successful candidate will be expected to deliver:

High-quality Power BI dashboards and reports that meet agreed business requirements.
Improved reporting capabilities that support operational and strategic decision-making.
Well-structured and performant semantic data models.
Trusted and reusable KPI calculations and metrics.
Reliable automated reporting and refresh processes.
Appropriate documentation and technical artefacts to support future maintenance.
Knowledge transfer to internal teams to support sustainable capability and reduce dependency on external resource.