Senior Snowflake Data Engineer—Transformation & Governance

Nordea; Warszawa; On-site; PLN 240,000 - 420,000; Full time

Benefits offered by this job

Hybrid work model

Diversity and inclusion culture

Job summary

Nordea’s Large Data Foundation within Group Technology seeks a senior Data Engineer to design and maintain Snowflake transformation layers for risk model datasets. You will work on SQL procedures, Snowpark, and Airflow DAGs, ensuring governance, performance, and scalable data pipelines.

You will analyze requirements, optimize queries, contribute to schema design, and own CI/CD deployments. Experience in finance, strong SQL, and Python/Scala are essential for this role.

Qualifications

• 8+ years in data engineering, 2+ years with Snowflake in production.
• Strong SQL skills (window functions, QUALIFY, MERGE, recursive CTEs, FLATTEN/LATERAL).
• Experience with Snowpark (Python or Scala).
• Understanding of Snowflake execution model (micro-partitions, clustering, pruning, query plan).
• Proficiency in Python or Scala for pipeline logic.
• Airflow experience (DAGs, sensors, retries).
• Comfort with Git, Bitbucket, CI/CD deployments.
• Knowledge of financial services or banking, especially credit risk, finance, or regulatory reporting.

Responsibilities

• Design and build transformation jobs in Snowflake (SQL stored procedures, Snowpark, Dynamic Tables).
• Analyze business and data requirements before coding.
• Translate requirements into clean, maintainable transformation logic.
• Apply Snowflake best practices: clustering, micro‑partition awareness, query optimization, warehouse rightsizing.
• Contribute to data modeling decisions (schema design, naming conventions, partitioning strategies).
• Own CI/CD for deliverables (branching, deployments, promotion via Bitbucket and Jenkins).
• Write and maintain Airflow DAGs that orchestrate Snowflake workloads.
• Contribute to the data exchange layer (Database Roles, Secure Views, cross‑account sharing).
• Review code, pair with team members, contribute to team standards.

Skills

Data engineering

Snowflake production

Advanced SQL

Python/Scala

Airflow

CI/CD

Git/Bitbucket/Jenkins

Financial services knowledge

Tools

Snowflake

Snowpark

Airflow

Git

Jenkins

Job description

Nordea’s Large Data Foundation within Group Technology seeks a senior Data Engineer to design and maintain Snowflake transformation layers for risk model datasets. You will work on SQL procedures, Snowpark, and Airflow DAGs, ensuring governance, performance, and scalable data pipelines.

You will analyze requirements, optimize queries, contribute to schema design, and own CI/CD deployments. Experience in finance, strong SQL, and Python/Scala are essential for this role.