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Offer summary
(Summary generated by AI based on the full job description)
The project involves a global e-commerce and marketplace platform focused on finance and settlements. Key technologies include Google BigQuery, Apache Airflow, Teradata (migration), with medallion data architecture and data management tools such as OpenMetadata, Flyway, Git. Responsibilities cover designing global data architecture, model harmonization, cloud migration, data pipeline implementation, data quality and compliance management, CI/CD support, and cost/performance optimization in BigQuery.
Data Architect (Part-time) – E-commerce & Marketplace Platform (GCP / BigQuery)
Company: SQUARE ONE RESOURCES sp. z o.o.
from: 15 June 2026
to: 15 July 2026
180 - 200 złnet (+ VAT)/ hr.B2B contract (part time)
Offer parameters
level:senior • expert
working mode:remote
Warszawa, Mokotów
Requirements
Expected technologies
Google Analytics
Google Cloud Platform
BigQuery
Teradata
Apache Airflow
OpenMetadata
SQL
Our requirements
- Proven experience as a Data Architect or Lead Data Engineer in large-scale data environments
- Strong hands-on experience with Google Cloud Platform, especially BigQuery
- Solid background in data warehousing architecture (ideally medallion / layered models)
- Experience in migration projects from legacy DWH solutions (e.g., Teradata) to cloud platforms
- Strong knowledge of Apache Airflow and end-to-end data pipeline design
- Experience with data governance, metadata management, and data catalog solutions (e.g., OpenMetadata or similar)
- Understanding of CI/CD practices for data engineering (Git, Jenkins, Terraform, Flyway)
- Strong SQL expertise and experience with large-scale data modeling
- Experience in finance, payments, or regulated environments (tax, compliance, auditability) is highly desirable
- Strong communication skills and ability to work in a global, cross-functional environment
Your responsibilities
- Define and enforce Bronze / Silver / Gold data architecture principles across the platform
- Lead global data model harmonization (conformed dimensions, unified fact models, SCD2 implementation)
- Drive migration from Teradata to Google BigQuery, including parallel run strategy and validation approach
- Design and standardize end-to-end data pipelines (ingestion → transformation → consumption) using Apache Airflow
- Establish enterprise data governance framework (lineage, metadata management, RBAC, auditability)
- Implement data quality and observability framework with automated validation and pipeline gating mechanisms
- Define CI/CD standards and support schema evolution processes (Git-based workflows, Flyway)
- Optimize performance and cost efficiency (partitioning, clustering, aggregation strategies in BigQuery)
- Ensure architectural alignment with finance, tax, and regulatory compliance requirements
About the project
We are seeking a Data Architect (part-time) for a global e-commerce and marketplace platform operating across North America and multiple international regions. The client supports millions of customers and partners, managing complex financial operations including merchant settlements, payments, promotions, taxation, and revenue reporting.
Due to historical growth, the organization currently operates fragmented regional data platforms with inconsistent models, pipelines, and reporting layers. The objective of the engagement is to design and standardize a unified global data architecture ensuring consistency, auditability, and compliance for critical financial processes such as revenue recognition, VAT/tax reporting, and month-end closing.
Duration: 7–8 months
Commitment: ~80 hours/month (part-time)
This is how we work on a project
- Continuous Deployment
- Continuous Integration
SQUARE ONE RESOURCES sp. z o.o.
At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.
This is how we work
Data Architect (Part-time) – E-commerce & Marketplace Platform (GCP / BigQuery)
180–200 zł / hr. (B2B)
I apply to:
SQUARE ONE RESOURCES sp. z o.o.
Warszawa, Mokotów
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