BI Developer & Data Engineer (Power BI / Microsoft Fabric)
Location: Flexible working, minimum 3 days in the office (Newquay – Cornwall / Chard – Somerset)
Job Type: Full-time, Permanent
Reports to: Head of Customer Insight & Analytics
About Us
Refined Brands Group are digital pioneers of the ethical fashion movement, with a strong focus on natural, organic, and recycled materials, coupled with local design and manufacturing.
The group began with Celtic & Co. in 2021, with Turtle Doves, Kettlewell Colours, and Frugi joining in 2022.
Based a few miles from Newquay, we champion British manufacturing and ethical, sustainable, high-quality clothing. Our mission is to build a better fashion future, prioritising responsibility to the environment.
We have big ambitions for continued growth and pride ourselves on being a great place to work. This is an exciting opportunity to join an international, purpose-driven brand.
Role Overview
We are looking for a hands-on BI Developer & Data Engineer to own the build, performance, and reliability of our Power BI and Microsoft Fabric environment across the group’s four brands.
This is a technical role for someone who loves clean data models, fast queries, and dependable pipelines — the person who keeps the analytics platform accurate, efficient, and genuinely useful for everyone who relies on it.
You will be the technical backbone behind the group’s reporting and insight: building a trusted single source of truth, integrating data from e-commerce, ERP, CRM, and marketing systems, and making sure everything runs quickly and reliably. You will report to the Head of Customer Insight & Analytics, who sets the commercial questions your platform is built to answer.
Key Responsibilities
- Own the Power BI / Microsoft Fabric estate — semantic models, datasets, dataflows, workspaces, and Fabric capacity.
- Design and maintain robust, well-documented data models (star schemas, relationships, DAX measures) as a single source of truth across all four brands.
- Build, monitor, and optimise data pipelines integrating multiple sources (e-commerce/Shopify, ERP, CRM, marketing platforms, catalogue, and finance).
- Optimise performance — query tuning (DAX, SQL, Power Query/M), refresh times, and capacity usage — keeping reports fast and responsive.
- Ensure platform stability and reliability: refresh scheduling, monitoring, alerting, error handling, and incident resolution.
- Implement data governance and security frameworks — row-level security, access control, naming and version standards, and documentation — to ensure accuracy, consistency, and security.
- Automate reporting and manual processes to reduce effort and error.
- Prepare clean, well-structured data to enable advanced analytics and AI/ML use cases.
- Manage deployment across development, test, and production environments, with proper version control.
- Work with the Head of Customer Insight & Analytics to refine requirements before building — advising on feasibility, options, and trade-offs, then translating the agreed brief into well-built, maintainable solutions.
Requirements & Qualifications
- Proven hands-on experience building and optimising in Power BI (advanced DAX, Power Query/M, and data modelling).
- Experience with Microsoft Fabric, or the wider Azure data stack (Synapse, Data Factory, Lakehouse/OneLake, Dataflows Gen2).
- Strong SQL; Python an advantage.
- Demonstrable ETL/ELT pipeline design and integration of multiple source systems.
- Performance optimisation and Power BI / Fabric capacity management.
- Solid data governance, security (RLS), and documentation discipline.
- Retail or e-commerce data experience (Shopify, ERP, CRM) preferred.
- Methodical, detail-oriented, and comfortable owning platform reliability.
- Good communication skills — able to work effectively with analysts and non-technical stakeholders.
What We Offer
- Exclusive 50% discount off all Refined Brands after 1 month
- 30 days annual leave (Inclusive of bank holidays), increasing with length of service
- Flexible working patterns (Delete as required)
- Free 24/7 access to our Employment Assistance Program, AXA Health
- Cycle to work Scheme
- Home & Tech Give some info
- Recommend a friend recruitment scheme, where you can gain £100 worth of vouchers for any brand
- Free fruit twice a week
- Paid volunteering opportunities
- Ethical, sustainable brands
- Working in beautiful Cornwall with its world-renowned beaches close by allows to a positive work life balance
- A supportive open minded team environment
- Family feel business
Requirements & Qualifications
The more diversity we have in our team, the more unique perspectives and bright ideas we share. At Refined Brands we are driven by alternative thinking, which to us means all ideas, personal beliefs, points of view, empower us to be a better more inclusive place to work.
Job Types: Full-time, Permanent
Work Location: In person
