Astek

python developer for banking data quality

In short

A senior Python developer role building data quality and validation mechanisms for a bank's data transformation program, working on cloud data pipelines on Google Cloud Platform (BigQuery, Dataplex, Dataproc, Cloud Composer/Airflow) and dbt-based data transformations. The company is a tech consultancy staffing a banking client project in Warsaw, hybrid with 2 office days per week. Requires strong Python, SQL, GCP, and dbt experience, plus commercial Data Quality project background.

About the Project
The project is part of Initiative 4 of the DATA program, "Source Data Quality Assurance Mechanisms," and contributes to the bank's strategic data transformation. It aims to improve data quality when information is entered into banking systems and create a comprehensive data validation process on a new data platform.
Responsibilities
•Design, implement, and develop Python applications and backend components
•Build solutions for data processing, validation, and quality control
•Implement Data Quality mechanisms and validation rules for data from source systems
•Create and optimize SQL and BigQuery queries and data processing workflows
•Design and develop data processing pipelines and workflows on Google Cloud Platform
•Use Dataplex, Dataproc, BigQuery, and Cloud Composer / Apache Airflow
•Build and develop data transformations using dbt
•Integrate systems and data sources in a cloud environment
•Analyze data quality issues and identify their sources in processes and systems
Requirements
•Strong practical knowledge of Python for independently designing, building, and developing applications and integration components
•Strong SQL skills and experience working with large datasets
•Commercial experience in Data Quality / data quality projects
•Practical experience designing and building cloud solutions on Google Cloud Platform (GCP)
•Strong knowledge of at least some of these services: Google BigQuery, Google Dataplex, Google Dataproc, Cloud Composer / Apache Airflow
•Experience designing systems and data processing workflows
•Experience creating and maintaining pipelines and system integrations
•Knowledge of dbt and practical experience building data transformations
•Experience with GitHub, version control, and code review
•Knowledge of Google Artifact Registry and application artifact management
Nice to have: experience in the banking sector
Conditions
•Long-term cooperation
•Technical training, certifications, and professional development
•Membership in the Mentoring Competence Center from the first day, with opportunities to develop skills, attend conferences, and share knowledge and experience
•Clear career path
•Employee benefits package including Multisport, private medical care, and life insurance
•Friendly work atmosphere, integration events, and team-building meetings
•Referral system with a bonus of up to 7000 zl
•Hybrid work with 2 office days per week at the client's office in central Warsaw
•Compensation: from 1300 PLN net/day, depending on experience and competencies, or employment contract (UOP) if preferred

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