Data Platform Engineer – fintech sector (f/m/x)

Sii is a company working with one of Europe’s leading fintech scale-ups, focusing on building and maintaining cloud-based data platforms across AWS and GCP.

• At least 5 years of experience in Data Engineering and/or Data Platform Engineering
• Strong infrastructure and platform engineering experience, including modern DevOps practices, cloud technologies, AWS and GCP, Docker, and Terraform
• Expertise with BigQuery, including security, performance optimization, and cost management
• Experience working with AWS data lake architectures (Athena, S3, Glue), including query optimization, security, and cost-efficient design
• Proficiency in Python and modern data technologies such as Airflow and dbt
• Solid understanding of data security, platform security, and access management
• Experience implementing and maintaining observability and monitoring solutions, such as Grafana and CloudWatch
• Strong analytical and problem-solving skills, with the ability to evaluate technical options and make informed trade-offs
• Excellent communication skills and the ability to collaborate effectively with both technical and non-technical stakeholders
• Comfortable working in environments with high engineering standards, including CI/CD, code reviews, pull requests, and established governance practices
• Fluent English (both written and spoken)
• Residing in Poland required
• Fluent Polish required

Nice to have:

• Experience designing or building MLOps platforms and supporting machine learning workflows in production environments

• Build and maintain the Data Platform infrastructure across AWS and GCP, including data lakes, data warehouses, orchestration, and observability components
• Enhance the platform by introducing new features and services, improving monitoring and observability, and automating common operational tasks
• Develop and maintain CI/CD-driven deployment processes to improve platform reliability, scalability, and developer experience
• Collaborate closely with Data Engineers, Data Scientists, and Data Analysts to support and evolve the MLOps Platform
• Manage and optimize the data estate, including IAM and access policies, storage management, platform monitoring, and cost control
• Design and implement secure, compliant, and user-friendly data infrastructure solutions
• Continuously improve platform performance, reliability, security, and operational efficiency across cloud environments
• Work with stakeholders across and beyond the data organization to understand requirements and deliver platform capabilities that meet their needs
• Contribute to and uphold strong engineering practices, including code reviews, CI/CD, infrastructure-as-code, and established data governance standards

Residing in Poland required