Power BI Developer – Performance & Data Lake (Hybrid)

VIQU Limited; Cardiff; Hybrid; GBP 51,000 - 69,000; Part time

Job summary

VIQU Limited is seeking a Power BI Developer for a 6-month contract hybrid role in Cardiff. The candidate will stabilise, optimise, and deliver reporting across a complex platform environment within an NHS partnering context.

Key tasks include improving performance, data models, and delivering in-app reporting within Dataverse and Power BI Embedded environments, with a focus on scalable Fabric/lakehouse architectures and a strong emphasis on end-user reporting quality.

Qualifications

• Strong background as a Power BI Developer with performance optimisation and troubleshooting.
• Experience with data lakes / Microsoft Fabric / lakehouse architectures.
• Strong understanding of semantic modelling, data relationships, and DAX optimisation.
• Experience delivering Power BI Embedded reporting within application environments.
• Experience working with Model-Driven Apps (Dataverse) and in-app reporting approaches.
• Proven ability to work on brownfield reporting environments (fixing, improving, consolidating).
• Ability to work across both analytical (Power BI) and operational (in-app) reporting patterns.

Responsibilities

• Optimise and refactor existing Power BI reports to resolve performance and data model issues.
• Build and enhance reporting solutions using Microsoft Fabric and data lake / lakehouse architectures.
• Deliver Power BI dashboards using scalable semantic models.
• Develop Power BI Embedded reporting within Model-Driven App / Dataverse environments.
• Implement in-app operational reporting (lists, lightweight reporting) alongside Power BI analytics.
• Improve performance across DAX, queries, and data structures to ensure fast, reliable reporting.
• Support the consolidation and delivery of a defined set of reports across both Power BI and in-app reporting layers.

Job description

VIQU Limited is seeking a Power BI Developer for a 6-month contract hybrid role in Cardiff. The candidate will stabilise, optimise, and deliver reporting across a complex platform environment within an NHS partnering context.

Key tasks include improving performance, data models, and delivering in-app reporting within Dataverse and Power BI Embedded environments, with a focus on scalable Fabric/lakehouse architectures and a strong emphasis on end-user reporting quality.