Senior Data Modeller

About the Position

Join our data-focused team as a Senior Data Modeller to develop modern data platforms on Google Cloud Platform. You will be responsible for building and developing data transformation pipelines, data modeling, optimizing BigQuery solutions, and collaborating with stakeholders to deliver scalable, reliable, and cost-efficient data products.

Responsibilities

• 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

Requirements

• 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

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 Offer

• Type of contract: B2B contract
• Salary range: 155 - 205 PLN/H
• Competitive salary and benefits
• Ambitious projects, trainings, and tools you need to flourish

About the Company

We are GFT Poland. WE KNOW how to tackle complex issues with an 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

Location

• City: Kraków
• Country: PL
• Working place: Hybrid

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