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 promote a diverse and inclusive work environment.Join a high-impact project for a client in the medical sector. In this role, you will design, build, and maintain enterprise-grade data pipelines and data warehouses on AWS, with a strong focus on Amazon Redshift. You will collaborate closely with various teams and other business units to deliver a GxP-compliant, end-to-end data solution.This is a hybrid position, requiring at least two days per week in the office.Your tasks Design and maintain ETL/ELT pipelines using SQL, Python, and PySpark for Redshift and Data Lake Optimize SQL pipelines and ensure high-performance cluster operations Develop secure data marts and BI-ready tables for reporting and analytics Implement automated monitoring, logging, and alerting for data integrity Translate business requirements into scalable data and BI solutions Ensure compliance with GxP standards and author validation documentation Requirements At least 10 years of experience in ETL/ELT development and data engineering Strong expertise in AWS services (S3, Glue, Lambda, IAM) and Amazon Redshift Proficiency in SQL, Python, PySpark, and data modeling (star, snowflake, dimensional) Hands-on experience with GitHub, APIs, and performance tuning Familiarity with GxP-regulated environments and agile methodologies Excellent communication skills in 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  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  Join the Sii team – develop your skills, gain experience, and build your career!