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For a public sector client, we are seeking an experienced SQL / Data Vault Expert (m/f/d) to support Business Intelligence (BI) and Data Architecture initiatives. The role starts immediately and runs until end of 2026, offering a long-term, high-impact engagement in a complex data environment.
Job Responsibility:
Development of SQL-based database procedures and functions
Data cleansing, preprocessing, and data management using SQL
Implementation and performance optimization of complex data transformations
Relational data modeling with a strong focus on Data Vault architecture
Ensuring data consistency, integrity, and high data quality
Consulting stakeholders on complex business and technical topics
Design and implementation of customized, high-quality BI solutions
Evaluation of technical solution approaches and execution of feasibility analyses
Analysis of complex problem statements and development of holistic concepts and studies
Preparation and delivery of presentations for different target audiences
Structured, goal-oriented communication of complex technical topics to internal stakeholders
Requirements:
Fluent German & English
Expert-level Data Vault knowledge, including hands-on experience with self-developed Data Vault generators (mandatory)
5–7 years of experience with Java Spring and data migration projects
5–7 years of professional experience in IT consulting
Strong expertise in SQL, BI systems, and data architecture
Completed degree in Computer Science, Business Informatics, Business Administration, or a comparable qualification (university or university of applied sciences)
Professional demeanor with excellent communication and stakeholder management skills
Outstanding analytical and conceptual abilities
High proficiency in moderation, presentation, and stakeholder communication
Nice to have:
English is a strong advantage
What we offer:
Long-term public sector project with high stability
Opportunity to work on complex, enterprise-scale BI and Data Vault architectures