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- Tasks: Design and develop engaging Power BI solutions that transform data into impactful visual stories.
- Company: Join Lewis Silkin, a diverse and inclusive workplace committed to innovation and client success.
- Benefits: Flexible working patterns, supportive culture, and opportunities for professional growth.
- Why this job: Make a real impact by driving data visualisation solutions for clients in a fast-paced environment.
- Qualifications: 4+ years of Power BI experience, strong DAX and SQL skills, and a passion for teamwork.
- Other info: Collaborative team atmosphere with a focus on continuous learning and best practices.
The predicted salary is between 48000 - 72000 £ per year.
We are seeking a talented and experienced Senior Power BI developer to join our team. This is an exciting opportunity to drive the design and delivery of impactful data visualisation and reporting solutions for the firm and its external clients. As a hands-on Power BI expert, you’ll bring deep knowledge of data modelling, DAX, Power Query and visual storytelling plus working knowledge of Azure Data Factory, SQL and Fabric. Exposure to migrating legacy SSRS reports, and multidimensional cubes is a strong advantage. Your technical expertise, combined with a pragmatic approach to implementation and best practices, will be critical to elevating our reporting landscape in a fast-paced, maturing data environment.
Please note, this role can be based either from our London or Cardiff offices.
Key Responsibilities- Design, develop, and maintain end-to-end engaging Power BI solutions, including semantic models, dashboards and interactive reports.
- Collaborate with business stakeholders to gather requirements and translate them into impactful visual analytics and transactional reports.
- Optimize Power BI semantic models for performance, scalability, and usability.
- Leverage Power Query (M), DAX, and SQL to manipulate and transform data from diverse sources.
- Automate data refreshes and maintain report performance across large datasets.
- Ensure reports adhere to design best practices and usability standards.
- Support and embed Power BI solutions within business workflows and applications (e.g., SharePoint, Teams, PowerApps).
- Ongoing monitoring of latest developments in Analytics and introduction of best practices across the team.
- Provide support for Power BI issues escalated from business users or service desk.
- Liaise with infrastructure/data platform teams to troubleshoot data pipeline and gateway issues.
- Maintain role-based access controls (RBAC) for datasets, reports, and workspaces.
- Ensure high availability of critical dashboards through proactive maintenance and performance tuning.
- Maintain technical documentation covering dataset definitions, data sources, transformation logic, and data lineage.
- Contribute to and enforce Power BI governance standards, including naming conventions, workspace management, and data security.
- Ensure adherence to data governance, GDPR, and regulatory compliance in all Power BI deliverables.
- Ensure traceability of report metrics back to source systems.
You will have a professional manner, excellent communication and interpersonal skills, and have previous experience working within an office. You’ll have a flexible nature and will enjoy working within a fast-paced team, and will be highly organised. You’ll also possess strong numeracy and attention to detail skills, which will be key within this role. We are looking for someone who is passionate about being a team player, who is keen to support others.
Our ideal candidate will be able to demonstrate:- Ideally four+ years of hands-on experience developing enterprise-grade Power BI solutions including PowerBI Report Builder.
- A deep understanding of DAX, Power Query (M), semantic models, and report performance optimization.
- Exposure to SQL and experience with relational databases, data warehouses, or lakehouses.
- Familiarity with the broader Microsoft Power Platform (PowerApps, Power Automate).
- Experience working within Agile delivery environments and using tools like Azure DevOps.
- Good understanding of CI/CD pipelines and deployment automation for Power BI artifacts (preferred).
- Ability to tell a story with data and strong analytics skills.
- Ability to communicate ideas in both technical and user-friendly language.
- Able to conduct research into data management technologies and best practices.
- Highly self-motivated and directed, with keen attention to detail.
- Able to prioritize and execute tasks.
- Experience working in a team-oriented, collaborative environment.
At Lewis Silkin our ethos is simple. We strive to do the best for our clients, our people and the communities in which we operate. We recognise that an inclusive workplace allows for all kinds of ideas and thoughts, a variety of points of view that can trigger discussions or deliver innovative results, and a wide range of versatile skills and expertise. We are proud of the diversity within Lewis Silkin and of our culture that allows people to be themselves at work, ensuring we provide the best possible service to our clients. We are committed to supporting candidates throughout the recruitment process by supporting anyone who requires adjustments, in order to ensure they have the opportunity to perform at their best. All applicants will be considered equally and fairly. If you’d like to request any adjustments throughout the recruitment process, or would like to discuss flexible working patterns, please email the recruitment team in confidence (recruitment@lewissilkin.com).
Senior Power BI Developer in Cardiff employer: Lewis Silkin
Contact Detail:
Lewis Silkin Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Power BI Developer in Cardiff
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage in online forums. The more people know you're on the hunt for a Senior Power BI Developer role, the better your chances of landing that dream job.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best Power BI projects. Include examples of data visualisation, DAX magic, and any cool dashboards you've built. This will give potential employers a taste of what you can do.
✨Tip Number 3
Prepare for interviews by brushing up on common Power BI scenarios and challenges. Be ready to discuss how you've tackled data modelling and report optimisation in past roles. Confidence is key, so practice makes perfect!
✨Tip Number 4
Don't forget to apply through our website! It's the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team at Lewis Silkin.
We think you need these skills to ace Senior Power BI Developer in Cardiff
Some tips for your application 🫡
Show Off Your Power BI Skills: Make sure to highlight your hands-on experience with Power BI in your application. We want to see your expertise in DAX, Power Query, and data visualisation techniques. Don’t forget to mention any projects where you’ve created impactful reports or dashboards!
Tailor Your Application: Take a moment to customise your CV and cover letter for this role. We’re looking for someone who can drive the design and delivery of data solutions, so make sure to align your experiences with the key responsibilities mentioned in the job description.
Be Clear and Concise: When writing your application, keep it clear and to the point. Use straightforward language to explain your technical skills and experiences. We appreciate a well-structured application that’s easy to read and understand!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates. Plus, we love seeing applications come through our own platform!
How to prepare for a job interview at Lewis Silkin
✨Know Your Power BI Inside Out
Make sure you brush up on your Power BI skills, especially DAX and Power Query. Be ready to discuss how you've used these tools in past projects, and prepare to showcase your ability to create engaging dashboards and reports.
✨Showcase Your Problem-Solving Skills
Be prepared to talk about specific challenges you've faced while developing Power BI solutions. Highlight how you approached these issues, the solutions you implemented, and the impact they had on your team or clients.
✨Understand the Business Context
Research the company and its clients to understand their needs and how your role as a Senior Power BI Developer can add value. This will help you tailor your responses and demonstrate that you're not just technically skilled but also business-savvy.
✨Communicate Clearly and Confidently
Practice explaining complex technical concepts in simple terms. During the interview, focus on clear communication, as this role requires collaboration with various stakeholders. Show that you can bridge the gap between technical and non-technical audiences.
