Data Vault Expert with Javascript Experience - Remote Long Term Project - Fluent German NeededFor a public sector client, we are currently looking for a highly experienced SQL / Data Vault Expert (m/f/d) to support Business Intelligence (BI) and Data Architecture activities on a long-term project starting ASAP and running until end of 2026.This role is ideal for a senior BI consultant or data architect with deep Data Vault expertise and strong SQL and Java Spring experience.Project DetailsStart: ASAPDuration: Until end of 2026Industry: Public SectorWork Model: Hybrid (20% on-site / 80% remote)Project Language: German (English is a plus)Your ResponsibilitiesDelivery of Business Intelligence and Data Architecture servicesDevelopment of SQL database procedures and functionsData cleansing, preprocessing, and data management using SQLImplementation and performance optimization of data transformationsRelational data modeling with a strong focus on Data Vault architectureEnsuring high data quality, data consistency, and integrityConsulting stakeholders on complex business and technical topicsDesign and implementation of high-quality, customized BI solutionsEvaluation of technical solution approaches and feasibility analysesAnalysis of complex problem statements and development of holistic data conceptsPreparation and delivery of presentations for different stakeholder groupsStructured and goal-oriented communication of complex technical topicsYour Profile – Mandatory RequirementsExpert-level Data Vault knowledge, including hands-on experience with self-developed Data Vault generators (mandatory)Experience with Java Spring and data migration projectsExperience of professional experience in IT consultingStrong expertise in SQL, BI systems, and data architectureDegree in Computer Science, Business Informatics, Business Administration, or a comparable qualificationProfessional demeanor with excellent communication and stakeholder management skillsStrong analytical, conceptual, and problem-solving abilitiesHigh proficiency in presentation, moderation, and stakeholder communicationWhy Apply?Long-term public sector engagement with planning securityWork on enterprise-scale BI and Data Vault architecturesFlexible hybrid working modelHigh-impact role with strategic influence on data architecture