Database Expert

Teknik, data och digitalt · Data, AI och analys · Data engineering · Databasadministration

I korthet

Nordea is seeking a full-time Database Expert in Poland to design, document, and improve data foundations on modern platforms and integrated systems. The role involves improving database reliability, performance, and security, supporting system integration, and shaping data initiatives. This hybrid position requires strong experience in data architecture, modelling, SQL/NoSQL technologies, ETL processes, and big data technologies.

Ansvarsområden

Design efficient database schemas, business-aligned data models, data dictionaries and technical documentation.
Improve database reliability, performance and security by proposing optimization techniques, validation rules, access controls, backup and recovery approaches, and error handling mechanisms.
Design data ingestion, transformation and quality-control patterns that standardize, clean and validate data from multiple sources.
Support integration across systems by designing message queues and event-driven patterns, ensuring data consistency, troubleshooting synchronization issues and collaborating with internal and external teams.
Shape data initiatives into manageable work packages by estimating effort, defining timelines and helping set the technical roadmap for data infrastructure.

Krav

Solid experience in data architecture and design, data modelling, data warehousing solutions and data integration patterns.
Proficiency in database design and management across SQL and NoSQL technologies, including schema design, constraints, stored procedures, functions and triggers.
Strong understanding of ETL processes and tools such as DataStage, Informatica and Snowflake ETL, plus familiarity with big data technologies such as Hadoop and Spark and Kafka event streaming.
Proficiency in UML, especially ERD, sequence and component diagrams, together with an understanding of BPMN and end-to-end process thinking.
Good working knowledge of data governance principles, data quality practices, performance optimization, debugging/troubleshooting and CI/CD pipeline concepts.
Ability to think systematically about data flows and translate complex technical topics into clear explanations for non-technical stakeholders.
Comfortable facilitating knowledge sharing, documenting decisions and helping teams reduce technical debt over time.

Önskade kvalifikationer

Hands-on experience documenting complex data flows, integration landscapes and data dictionaries in regulated environments.
Experience designing event-driven or queue-based integration patterns and helping define operational recovery mechanisms for critical data processes.
Ability to support communities of practice through knowledge-sharing sessions, architecture guidance and reusable documentation standards.

Förmåner

Hybrid working model
Opportunities to evolve, develop and learn from brilliant colleagues with diverse backgrounds in a vibrant working environment.
An inclusive workplace that is a sustainable one.

Färdigheter

SQLNoSQLDataStageInformaticaSnowflake ETLHadoopSparkKafkaUMLERDsequence diagramscomponent diagramsBPMNCI/CD

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Om Nordea

We are a universal bank with a 200-year history of supporting and growing the Nordic economies – enabling dreams and aspirations for a greater good. Every day, we work to support our customers’ financial development, delivering best-in-class omnichannel customer experiences and driving sustainable change. We are a full-service universal bank and the third largest corporation in the Nordic region and one of the top 10 financial services companies in Europe based on market capitalisation. We are present in 17 countries, including our four Nordic home markets which together constitute the 10th…

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