BI Consultant

Altum Consulting; Greater London; Remote; GBP 101,000 - 120,000; Full time

Job summary

Altum Consulting seeks a Senior BI Consultant to own and enhance its Power BI reporting environment. This fully remote UK role requires hands-on leadership, strong technical skills, and the ability to work independently on a 3-month contract with extension potential.

Responsibilities include ownership of Power BI development, report review, data modelling, and ensuring accuracy through QA and testing. Ability to engage with stakeholders and deliver production-ready dashboards is essential.

Qualifications

• Advanced hands-on expertise in Power BI, DAX, Power Query, SQL and data modelling.
• Proven experience owning BI solutions and improving their quality, performance and reliability.
• Strong data validation, testing and reconciliation skills.
• Ability to create professional, user-friendly dashboards.
• Experience with Power BI Service deployments, security and troubleshooting.
• Confidence to challenge requirements and work with stakeholders.

Responsibilities

• Take ownership of Power BI development, enhancements, testing, deployment and ongoing support.
• Review existing reports and resolve issues across DAX measures, data models, filters and visual presentation.
• Ensure reporting accuracy through testing, reconciliation and QA.
• Develop polished, intuitive dashboards with consistent formatting and usability.
• Build and optimise data models and Power Query transformations, using SQL to validate outputs.
• Manage Power BI Service workspaces, refreshes, gateways and security.
• Strengthen documentation, version control and release processes, supporting handover from an external partner.

Tools

Snowflake

Job description

BI Consultant

Fully remote (UK)

£550 - £650 per day, Outside IR35

3-month contract, with potential to extend

We are partnering with an international organisation seeking an experienced Senior BI Consultant to take technical ownership of its Power BI reporting environment.

Joining an ongoing reporting programme, you will review and enhance an existing suite of reports, improve data accuracy and dashboard design, and deliver reliable, production-ready reporting. This is a hands‑on opportunity for a senior consultant who can work independently and make confident technical decisions.

Key responsibilities

• Take ownership of Power BI development, enhancements, testing, deployment and ongoing support.

• Review existing reports and resolve issues across DAX measures, data models, filters, and visual presentation.

• Ensure reporting accuracy through testing, reconciliation and documented quality assurance.

• Develop polished, intuitive dashboards with consistent formatting and strong usability.

• Build and optimise data models and Power Query transformations, using SQL to investigate discrepancies and validate outputs.

• Manage Power BI Service workspaces, refreshes, gateways and security.

• Strengthen documentation, version control and release processes, supporting a smooth handover from an external development partner.

About you

• Advanced hands‑on expertise in Power BI, DAX, Power Query, SQL and data modelling.

• Proven experience taking ownership of existing BI solutions and improving their quality, performance and reliability.

• Strong understanding of data validation, testing and reconciliation.

• A track record of creating professional, user-friendly dashboards.

• Experience managing Power BI Service deployments, security and troubleshooting.

• The confidence to challenge requirements, recommend improvements and deliver without day‑to‑day technical supervision.

• Clear communication skills and experience working directly with business stakeholders.

Experience with Snowflake or similar cloud data platforms would be advantageous, alongside experience inheriting solutions from external development teams.

The role is fully remote, working UK/Central European hours. Candidates should ideally be able to share examples of dashboards they have developed and explain how they validated the underlying data.