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

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

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.

This is how we work,