Senior Data Modeller

Senior Data Modeller

Custom Field 1:  Data

Custom Field 3:  Data

Country/Region:  PL

Date:  Jul 10, 2026

Location: 

Kraków, PL, 30-302

Working place:  Hybrid

Type of contract: B2B contract

Salary range: 155 - 205 PLN/H

What will you do?

You will join a data-focused team responsible for building and developing modern data platforms on Google Cloud Platform. The role combines hands-on development of data transformation pipelines, data modeling, optimization of BigQuery solutions, and collaboration with stakeholders to deliver scalable, reliable, and cost-efficient data products.

Your tasks

• Design and develop SQL-based data transformation pipelines in BigQuery
• Optimize query performance, cost efficiency and data processing workloads
• Build, test and maintain ELT/ETL pipelines using Data Fusion or similar tools
• Implement and maintain data models supporting business reporting and analytics
• Collaborate with cross-functional teams in an Agile environment
• Manage source code and development workflows using Git
• Support data quality, data integrity and DataOps best practices
• Participate in technical discussions, problem solving and continuous improvement activities

Your skills

• 3+ years of hands-on experience with SQL querying and BigQuery optimization
• Experience building and implementing ELT/ETL data pipelines
• Knowledge of data modeling and data warehouse concepts
• Understanding of data architectures such as Kimball, Inmon or Data Vault
• Experience with Star, Snowflake, Medallion or Data Vault schemas
• Proficiency with Git version control
• Experience working in a DataOps environment
• Experience working in Agile teams using Jira and Confluence
• Willingness to travel regularly to Krakow (4–6 days per month)

Nice to have

• Data Vault modeling experience
• Experience with GCP Data Fusion, CDAP or similar data integration tools
• Experience designing data ingestion pipelines from APIs, SFTP and structured data sources
• Knowledge of data contract best practices
• Java development, testing and deployment skills
• Experience building custom plugins for Data Fusion
• Knowledge of CI/CD and continuous testing for cloud data solutions

We are GFT Poland. WE KNOW how to tackle complex issues with innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun and develop as human beings. 

Why Choose GFT?

• A culture of top performance
• Deep tech IT engineering & consulting
• 1200 skilled & top-class experts
• 77% of the team are regular/senior
• Products that contribute to a sustainable world
• Competitive salary and benefits
• Ambitious projects, trainings and tools you need to flourish
• Google Cloud Partner of the Year - for going above and beyond for customers

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