As a Power BI Developer, you will play a key role in designing and delivering dashboards, semantic models and reporting solutions that support operational performance and strategic decision-making. You will work closely with business stakeholders, data engineers and platform teams to ensure solutions are robust, governed and aligned to enterprise standards.,

Designing and developing Power BI dashboards, reports and semantic models to support business insight and decision-making
Building scalable and performant data models using best practice dimensional modelling techniques
Applying governance standards across workspace design, access control, deployment and lifecycle management
Collaborating with data engineers and platform teams to ensure reliable and secure data pipelines
Optimising datasets and reports for performance, usability and efficient use of platform capacity
Producing clear technical documentation to support maintainability and operational support
Supporting the improvement and rationalisation of existing reporting solutions to reduce duplication and improve quality
Engaging with stakeholders to understand requirements and translate them into effective data solutions
Providing technical guidance and promoting best practice across the organisation

Strong experience developing Power BI dashboards, datasets and semantic models in enterprise environments
Experience with dimensional modelling including fact and dimension tables
Advanced knowledge of DAX and Power Query
Experience optimising performance of Power BI models and reports
Working knowledge of Microsoft Fabric or similar modern data platforms
Understanding of data governance, security and access control (Azure AD, RBAC)
Experience working with SQL and integrating multiple data sources
Ability to work with stakeholders to translate business needs into technical solutions
Experience in regulated or safety-critical environments
Knowledge of deployment pipelines and Dev/Test/Prod lifecycle management
Experience with tools such as Tabular Editor, DAX Studio or ALM Toolkit
Exposure to Python or analytics workflows in Fabric or Databricks
Experience implementing or working within analytics governance frameworks

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance

2 Part time Tech / Digital / IT jobs in Casnewydd