Senior Data Engineer (Banking, Snowflake, BigData)

About the Offer

We are currently looking for a Senior Snowflake Data Engineer to join the team of our global client from the banking sector, working in the area of Risk and Regulatory Reporting. You will combine hands-on data engineering in Snowflake with banking domain knowledge, especially Balance Sheet Stress Testing, risk management and regulatory reporting, and drive delivery end to end: from requirements analysis and data investigations to production implementation. We are looking for long-term cooperation. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.

Key Details:

• Rate: up to 165 PLN/h net (B2B)

• Work Model: hybrid, min. 60% office presence, full-time (40 h/week)

• Location: Tricity (Gdańsk/Gdynia), Warsaw or Łódź

Responsibilities:

• Designing, developing and maintaining enterprise-grade ETL/ELT pipelines in Snowflake

• Analysing banking business requirements around Balance Sheet Stress Testing, scenario analysis, capital adequacy, liquidity and risk management

• Working closely with business analysts and finance, treasury, risk and regulatory stakeholders to implement business logic accurately

• Building and optimising data warehousing solutions for large-scale aggregation, transformation and reporting of financial data

• Developing data models that support stress testing simulations, statistical analysis and management reporting

• Ensuring data quality, reconciliation, lineage, governance and regulatory compliance

• Preparing and provisioning data for downstream analytical, reporting and regulatory layers

• Driving performance optimisation, automation and continuous improvement of data platforms

Requirements:

• Strong hands-on experience with Snowflake, SQL and large-scale data warehousing

• Extensive experience building and maintaining ETL/ELT processes in complex enterprise environments

• Deep understanding of banking data, e.g. Balance Sheet Management, Stress Testing, Treasury and Liquidity, Finance and Regulatory Reporting, Risk Management, Capital Adequacy

• Proven ability to analyse, validate, reconcile and aggregate data across multiple source systems

• Strong business analysis skills: requirements gathering, process modelling, stakeholder management and translating business needs into technical solutions

• Experience with statistical analysis and data preparation for analytical models

• Understanding of data governance, data quality frameworks and regulatory requirements for banking data

• Excellent communication skills with both technical and business stakeholders

• Fluent English

Nice to Have:

• Experience with EBA, ECB, Basel, ICAAP, ILAAP, IRRBB or other regulatory stress testing frameworks

• Knowledge of Data Vault, dimensional modelling and cloud data platforms

• Experience in Agile/SAFe environments

• Power BI, Tableau or similar reporting tools