Power BI Developer Contract Jobs in Cardiff
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Senior Power BI Developer
Posted 1 week ago by Hays
About the RoleA leading financial services organisation is seeking a Senior Power BI Dashboard Developer to join a high-...
- Rate £750 per day
- Category Inside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
SENIOR POWER BI DEVELOPER with Copilot Implementation (Only Visa Independent Can...
Posted 1 week ago by SumasEdge Corporation
Submission RequirementsCandidates must provide:One or two examples of their most complex Power BI frontend pages, prefer...
- Rate Not specified
- Category Outside
- Work type Remote
- Location Remote
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About Our Power BI Developer Contract Roles in Cardiff
What does a power bi developer contractor do?
The Power BI Developer contractor role centres on the ability to build sophisticated, production-grade business intelligence solutions within Microsoft Power BI, bringing a level of technical depth and engineering rigour that goes beyond report building into the design and development of scalable, maintainable, and performant BI platforms. The Power BI Developer role is distinct from a generalist Power BI contractor in its emphasis on the technical architecture of the solution: designing and building Tabular data models, writing complex and performant DAX measures, managing large datasets through aggregation and DirectQuery optimisation, implementing enterprise-grade security models, and building the deployment and governance processes that make a Power BI estate manageable at scale.
Power BI Developer contractors are expected to bring expert-level DAX skills, including deep understanding of evaluation context, filter propagation, and the performance implications of different calculation approaches. Experience building Tabular models in either Power BI Dataset or Analysis Services format, with a thorough understanding of star schema design and the trade-offs between Import, DirectQuery, and Composite storage modes, is widely expected at this level. Proficiency in Power Query M for complex data transformation logic, experience with XMLA endpoints and external tools such as Tabular Editor or DAX Studio for model development and optimisation, and knowledge of Deployment Pipelines and Git integration for Power BI DevOps practices are expected for senior Power BI Developer contractor roles. Experience with Microsoft Fabric, which extends Power BI into a unified data and analytics platform, is growing in relevance as organisations adopt the new architecture.
What is the market like for power bi developer contractors?
Power BI Developer contracting commands a significant premium over general Power BI contractor rates, reflecting the technical depth and engineering rigour that distinguishes genuine platform development from report building. Demand is strongest in large enterprises and organisations building Power BI as a strategic enterprise analytics platform rather than a departmental reporting tool, where the quality of the underlying data model and DAX logic directly determines the scalability and performance of the entire BI estate. Financial services, retail, and large public sector organisations are among the most active buyers of Power BI Developer contractor resource. The convergence of Power BI with Microsoft Fabric is creating growing demand for developers who can work across the full Fabric analytics stack.
What is the contracting market like in Cardiff?
Devolved government makes Cardiff the administrative centre of Wales and a consistent source of programme management, policy, and digital delivery contracts. Insurance and financial services employers, several of whom have established significant operational centres in the city, provide a steady flow of IT, data, and change roles. An emerging technology sector around the city centre and Cardiff Gate business park has added software development and cloud engineering to the local mix, though volumes remain modest compared to larger English cities. The Welsh Government's investment in digital capability is a distinctive feature of the Cardiff market, creating opportunities in govtech and public service transformation that are structured and funded differently from equivalent programmes in England.
How much do power bi developer contractors usually earn in Cardiff?
Contract rates for power bi developer roles in Cardiff typically range from £360 to £675 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement.
How many power bi developer vacancies in Cardiff are there on Quality Contracts?
Over the past twelve months, we have tracked over 200 power bi developer contract roles across the site, with Cardiff demonstrating consistent opportunities. Data reviewed up to August 2026.