Principal Database Engineer
Calabrio AB · Stockholm
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- Company
- Calabrio AB
- Location
- Stockholm
- Employment type
- Full-time
- Posted
- September 3, 2026
About this job
As a Principal Database Engineer you are responsible for designing, implementing, maintaining, and optimizing database systems to ensure secure, reliable, and efficient management of organizational data. Beyond day-to-day database ownership, you serve as the connective tissue for how data is structured across our products — holding deep domain and data-model expertise that enables cross-product data mapping and integration. In your role, you support business operations by delivering high-performing, enterprise-scale database solutions and ensuring data availability, integrity, and security. **Candidate must be located in Stockholm, Sweden.** What You'll be doing: Own and maintain deep expertise in the organization's domain model — designing database structures, schemas, tables, indexes, and data models that reflect how data is structured and related across products. Develop and optimize queries, stored procedures, and database processes to improve system performance and efficiency. Map and reconcile data models across products to enable cross-sell initiatives and other data-integration efforts, acting as the go-to technical authority for adjacent teams on how data connects across the platform. Monitor database health, troubleshoot issues, and implement performance tuning and capacity planning activities to meet the scale and performance demands of large enterprise customers. Implement and maintain database security controls, including user access management, encryption, and compliance requirements. Support reporting, analytics, and business intelligence needs through data extraction and database solutions. Collaborate with application developers, data teams, and infrastructure teams to integrate and support enterprise systems. Maintain database documentation, standards, and operational procedures. Evaluate and adopt emerging technologies and best practices to improve scalability, reliability, and performance. Set database standards and best practices across teams, and act as the senior technical point of contact for data-integration questions from product, engineering, and adjacent teams. Requirements: 10+ years of professional experience with strong knowledge of SQL and database platforms such as Oracle, PostgreSQL, SQL Server, or MySQL. Experience with relational and NoSQL databases. Understanding of data modelling, indexing, query optimization, and database architecture. Programming and automation skills using languages such as Python, Java, or C#. Expertise in database security, backup and recovery, and performance management. Strong analytical, problem-solving, and collaboration skills. Experience mapping and integrating data models across multiple products or systems, and supporting database performance at enterprise scale.
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