Data Engineer (BigQuery / GCP) (m/f/d)

Commerzbank Digital Technology Centre Poland; Łódź; Hybrid; PLN 150,000 - 210,000; Full time

Benefits offered by this job

Development Plans

Life insurance

Flexible working hours

Integration events

Job summary

Commerzbank Digital Technology Centre Poland is seeking a Data Engineer to develop and optimize data pipelines and analytics-ready datasets in BigQuery. You will design, build, and maintain ELT/ETL processes, model data for analytics, and ensure data quality and security in a hybrid work setup in Łódź.

You will collaborate with business and IT stakeholders to translate requirements into technical specifications, support testing and releases, and help improve reliability and automation in a

Qualifications

• Strong knowledge of BigQuery and SQL for efficient data processing.
• Experience building ELT/ETL pipelines and data warehouse concepts.
• Ability to translate business requirements into technical specifications.

Responsibilities

• Develop and optimize BigQuery datasets, views and queries to meet performance and cost targets.
• Build and maintain ELT/ETL pipelines into BigQuery using Cloud Storage, Pub/Sub, Dataflow, Dataproc or vendor sources.
• Model data for analytics (dimensional and/or data vault) and define data quality checks, lineage and documentation for curated datasets.
• Collaborate with business and IT stakeholders to translate requirements into technical specifications, implement changes, and support testing and release activities.
• Ensure operational stability and security (IAM, service accounts, dataset access, auditability), troubleshoot incidents, and continuously improve reliability and automation.

Skills

BigQuery expertise

ETL design

Data modeling

SQL

Collaboration with stakeholders

Tools

BigQuery

GCP Data Engineering

Python

Git

CI/CD

Job description

Join our team as a Data Engineer

Our team is part of Cost Processing & Transactions cluster. The cluster provides standard reporting for controlling group costs, processes the accounts payable and travel expense reports, and makes the system landscape available to numerous customers in the CFO department.

We are a diverse international team with around 150 employees in Frankfurt, Bremen, Hamburg, Lodz and Prague and have clients in Germany and abroad. We are responsible for around 200 accounting and controlling processes and 45 IT products, from A as accounting to Z like Zet-Visions, and are therefore active in the heart of Commerzbank. With systems created by our team we are meeting demands which cannot be met by "box" products. We develop and maintain applications used in controlling environment (group and segment controlling) which provide planning, analysis and reporting functions. Working close with business we are able to quickly adapt them to current regulations and needs.

You Will Be Responsible For

• Develop and optimize BigQuery datasets, views and queries (partitioning, clustering, materialized views) to meet performance and cost targets.
• Build and maintain ELT/ETL pipelines into BigQuery (e.g., via Cloud Storage, Pub/Sub, Dataflow, Dataproc, or vendor sources), including monitoring and error handling.
• Model data for analytics (dimensional and/or data vault concepts) and define data quality checks, lineage and documentation for curated datasets.
• Collaborate with business and IT stakeholders to translate requirements into technical specifications, implement changes, and support testing and release activities.
• Ensure operational stability and security (IAM, service accounts, dataset access, auditability), troubleshoot incidents, and continuously improve reliability and automation.

Which technology & skills are important for us?

• High knowledge of BigQuery / SQL
• Good knowledge of GCP Data Engineering

Nice To Have

• Basic Python knowledge
• Basic knowledge of Git / CI/CD

How?

Hybrid on Ogrodowa 8 street (Łódź)

What we offer?

Of course, we offer Development Plans for employees Life insurance, flexible working hours, integration events and much more

Commerzbank is a leading international commercial bank with branches and offices in almost 50 countries. The world is changing, becoming digital, and so we are. We are leaving the traditional bank behind us and are choosing to move forward as a digital enterprise. This is exactly why we need talented people who will join us on this journey. We work in inter-locational and international teamwork in agile methodologies.