Data Engineer with GCP - fintech sector (f/m/x)

Data Engineer with GCP – fintech sector (f/m/x)

Miejsce pracy: Toruń

Technologies we use

Expected

• Python
• Data Streaming
• BigQuery
• Apache Airflow
• Data Built Tool
• Data Lake
• SQL
• streaming/event-driven architectures
• Google Cloud Platform

About the project

Join Sii and work with one of Europe’s leading fintech scale-ups.

We are currently looking for a Data Engineer to join Sii and contribute to a long-term project delivered for a Copenhagen-based fintech that’s redefining how businesses manage company spending, empowering over 40,000 organizations across Europe with smart cards and real-time financial insights. In this role, you’ll operate at the intersection of data and product engineering, building reliable, low-latency data pipelines that directly power customer-facing features in a modern, event-driven architecture.

Your responsibilities

• Building and maintaining product-serving data pipelines on GCP that power customer-facing applications and services, ensuring high reliability, scalability, and performance
• Developing and optimizing ingestion, transformation, and serving layers using BigQuery, Airflow, dbt, and Python to support real-time and near-real-time data consumption
• Contributing to event-driven data platforms, including streaming ingestion, data modeling, and data contract implementation to ensure consistency and reliability at scale
• Partnering closely with backend, platform, and product engineering teams to deliver data products that directly support application functionality and customer experiences
• Owning pipeline observability, monitoring, alerting, and operational excellence, proactively identifying and resolving issues impacting production systems and end users
• Driving best practices in data engineering, including testing, CI/CD, documentation, lineage tracking, and performance optimization across the data platform

Our requirements

• At least 5 years of experience as a Data Engineer in cloud-based environments
• Hands-on experience with modern GCP-native data infrastructure, including BigQuery, Cloud Storage, Cloud Functions, Pub/Sub, and other managed services
• Familiarity with building and owning production-grade data pipelines in a product engineering environment
• Strong Python engineering skills, with the ability to operate effectively at the intersection of data platforms and product/backend systems
• Proven experience designing and maintaining reliable, scalable data pipelines using Airflow and dbt, with a focus on data availability, quality, and performance for customer-facing products
• Exposure to streaming or event-driven architectures using Pub/Sub, Kafka, or similar technologies; solid understanding of real-time and near-real-time data processing requirements
• Familiarity with event schemas, data contracts, and data governance practices; understanding of schema evolution and its impact on downstream consumers and applications
• Ability to work independently in a fast-paced, ambiguous environment, with end-to-end ownership from design through delivery and ongoing operational support
• Experience working with financial, payments, compliance, or other regulated datasets, with a strong focus on data accuracy, lineage, and auditability
• Fluent English, both written and spoken
• Residing in Poland required

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People

Recruitment stages

• Send your CV
• Talk to us about your expectations
• Learn more about our projects and choose the best
• Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.