Senior BI Developer

Salary: £50,000 - 90,000 per year

Requirements:

• Proven mid to senior level experience in data engineering, data architecture design and delivery, and BI within a data-intensive environment
• Experience working with data from multiple systems and structures at different velocities, including near real time
• Strong knowledge of data architecture, with Snowflake preferred, SQL development, security, and process optimisation
• Advanced SQL development skills, including query development and optimisation, stored procedures, and performance tuning
• Expert knowledge of end-to-end enterprise BI using Power BI, including semantic modelling, DAX, Power Query, data visualisation best practice, report development, and performance optimisation
• Advanced data modelling skills, including dimensional modelling, star schema design, database layers, and data mart development
• Knowledge of BI solution delivery methodologies, including requirements and discovery, Agile delivery, testing, deployment, and post-production support
• Strong understanding of data governance and security frameworks, including data quality, metadata management, lineage, user and permission management, compliance, and access controls
• Excellent documentation skills, with the ability to create and maintain solution designs, data dictionaries, business glossaries, and technical standards
• Strong stakeholder management, communication, and business partnering skills, with the ability to translate business requirements into data solutions
• Experience with marketing orchestration platforms such as Bloomreach or reverse ETL tools such as HighTouch is desirable
• Knowledge of marketing and digital data such as Google Analytics and BigQuery would be advantageous
• Change management using JIRA and Confluence would be an advantage
• Experience using and implementing AI agents for code creation and process efficiency would be advantageous

Responsibilities:

• Work closely with internal stakeholders to define and deliver data products and reports that meet their needs
• Collaborate with data engineers and integration specialists across our team and wider business to deliver data pipelines, ETL processes, and data models that meet requirements
• Develop and maintain a suite of engaging Power BI dashboards, including enterprise-level semantic models and user and data permissions management
• Own and continuously improve our data models, including data and KPI definitions, ensuring consistency of use
• Support analysts and researchers with data-driven initiatives by ensuring they have the data needed to complete projects
• Develop, maintain, and adhere to robust data and delivery processes, including testing, monitoring, documentation, and issue resolution
• Contribute to our business data literacy by ensuring data and dashboards are understood and adopted
• Support our wider company data strategy by contributing to our data development frameworks and engaging with Data Governance to resolve quality and integrity issues

Technologies:

• AI
• AI Agents
• BigQuery
• Confluence
• DAX
• ETL
• Hightouch
• Support
• JIRA
• Marketing
• Power BI
• Power Query
• SQL
• Security
• Snowflake

More:

We are AJ Bell, a fast-growing UK investment platform business trusted by more than 762,000 customers and managing over 121.5 billion of assets. We believe investing should feel good and provide easy-to-use solutions for people from all walks of life, whether they invest through an adviser or do it themselves. We are proud to be recognised as one of the UKs Best 100 Companies to Work For for six consecutive years and as a Great Place to Work in 2025 and 2026. We offer a supportive, collaborative environment with benefits including 25 days holiday plus bank holidays and a buy/sell scheme, a 6% pension with matched contributions, discretionary bonus scheme, share schemes, health cash plan and discounted private healthcare, free onsite gym, enhanced family leave, travel and bike loan schemes, Employee Assistance Programme, regular social events, tailored learning and development opportunities, and a casual dress code. We work on a hybrid basis with at least 50% of working time per month in the office, with an initial full-time office period for new starters to help them settle in and build relationships. We are committed to inclusion and diversity and welcome applications from all backgrounds.

last updated 34 week of 2026