Senior BI Developer

Oliver James Group; Amsterdam; On-site; EUR 70,000 - 95,000; Full time

Job summary

Oliver James Group is seeking a Senior BI Developer to turn complex datasets into clear dashboards and actionable insights for business decisions in a large organisation.

You will partner with data engineers, analysts and stakeholders to model data, craft robust reporting solutions and drive self-service BI across the enterprise. The role focuses on developing and optimising dashboards, writing SQL, and improving performance while promoting data governance and high data quality.

Qualifications

• 5+ years of BI or BI development experience.
• Strong Power BI experience.
• Advanced SQL skills.
• Experience with DAX and data modelling.
• Experience with data warehouses and relational databases.
• Ability to translate technical data into clear business insights.
• Strong analytical and communication skills.
• Experience working in Agile teams.

Responsibilities

• Develop and maintain interactive dashboards and reports.
• Translate business requirements into effective BI solutions.
• Model and transform data for reporting purposes.
• Develop and optimise data models and DAX measures.
• Write and optimise SQL queries.
• Improve dashboard performance and usability.
• Validate data and ensure the quality and consistency of reports.
• Collaborate with stakeholders to define KPIs and reporting requirements.
• Promote self-service BI and data-driven decision-making.
• Contribute to BI standards and best practices.

Skills

Power BI

SQL

DAX

Data modelling

Data warehouses

Analytical skills

Communication skills

Agile

Tools

Azure Synapse Analytics

Python

Job description

Turn data into insights that drive business decisions

Are you an experienced BI Developer who enjoys transforming complex datasets into clear dashboards and actionable insights? Would you like to contribute to data-driven decision-making within a large, complex organisation?

We are looking for a Senior BI Developer to develop, optimise and maintain reporting solutions. You will work closely with Data Engineers, Data Analysts and business stakeholders to make data accessible, reliable and valuable for decision-making.

What will you do?

• Develop and maintain interactive dashboards and reports.
• Translate business requirements into effective BI solutions.
• Model and transform data for reporting purposes.
• Develop and optimise data models and DAX measures.
• Write and optimise SQL queries.
• Improve dashboard performance and usability.
• Validate data and ensure the quality and consistency of reports.
• Collaborate with stakeholders to define KPIs and reporting requirements.
• Promote self-service BI and data-driven decision-making.
• Contribute to BI standards and best practices.

What are we looking for?

• At least 5 years of experience in Business Intelligence or BI Development.
• Strong hands-on experience with Power BI.
• Advanced SQL skills.
• Experience with DAX and data modelling.
• Experience with data warehouses and relational databases.
• Ability to translate technical data into clear business insights.
• Strong analytical and communication skills.
• Experience working in Agile and multidisciplinary teams.

Nice to have

• Experience with Azure Synapse Analytics or Microsoft Fabric.
• Knowledge of ETL/ELT processes.
• Experience with Python.
• Knowledge of data governance and data quality.