BI Developer

Andersen is hiring a BI Developer in Germany to support a major public-sector analytics initiative, modernizing legacy data systems and building secure, scalable BI platforms for improved reporting and decision-making. 

The customer is a large international technology provider delivering end-to-end digital solutions for enterprise-level organizations. The company focuses on IT consulting, cloud services, cybersecurity, and managed operations, supporting clients across various industries with complex digital-transformation needs. With decades of experience, the customer emphasizes innovation, reliability, and high security standards. 

The project is a large-scale BI and data-analytics initiative in the European public sector, aimed at modernizing government services through centralized reporting and data-driven decision-making. It focuses on transforming legacy data systems into secure, scalable analytics platforms that support efficient and transparent digital public administration. 

Responsibilities: 

• Developing, maintaining, and optimizing ETL/ELT pipelines for data ingestion, transformation, and loading.  

• Designing and maintaining analytical data models to support reporting and BI use cases.  

• Analyzing data sources, defining data requirements, and ensuring data quality and consistency.  

• Monitoring and improving the performance of ETL processes and database queries.  

• Validating, profiling, and cleansing data as part of data quality initiatives.  

• Working with DWH/Data Lake environments and contributing to architectural improvements.  

• Building dashboards, reports, KPIs, and visual analytics using BI platforms.  

• Collaborating with business analysts and stakeholders to gather reporting and analytics requirements.  

• Producing technical documentation, data dictionaries, process maps, and design specifications.  

• Participating in testing, deployment, and release activities for BI components.  

• Providing support to end users and investigating data- or report-related incidents. 

Must-haves: 

• Experience in BI development and working with enterprise DWH/ETL environments for 5+ years.  

• Strong SQL skills, including complex queries, performance tuning, and window functions.  

• Hands-on experience building ETL/ELT pipelines using tools such as Informatica, SSIS, Talend, Pentaho, dbt, or similar.  

• Solid understanding of data modelling techniques, including star schema, snowflake, SCD, normalization, and denormalization.  

• Knowledge of DWH architectures and data platforms such as DWH, Data Lake, and Lakehouse.  

• Experience integrating data from multiple sources, including databases, APIs, files, and cloud services.  

• Ability to develop dashboards, analytical reports, KPIs, and metrics for business stakeholders.  

• Experience optimizing ETL pipelines and SQL query performance.  

• Understanding of data quality, data lineage, and data governance practices.  

• Familiarity with a scripting language for automation or data processing (Python or R preferred).  

• Experience using Git and CI/CD practices for BI/ETL workflows.  

• Proficiency with BI platforms such as Power BI, Tableau, Qlik, or Looker.  

• Level of English – from Intermediate+ and above.  

• Level of German – from Intermediate+ and above. 

Reasons why this job would be interesting to you: 

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.; 

• The opportunity to change the project and/or develop expertise in an interesting business domain; 

• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant; 

• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee; 

• The opportunity to earn additional up to 1,000 USD per month by participating in the company's activities; 

• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated; 

• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies); 

• Certification compensation (AWS, PMP, etc); 

• Referral program; 

• English courses; 

• Private health insurance and compensation for sports activities. 

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