Senior Data Engineer with AWS and Snowflake

Senior Data Engineer with AWS and Snowflake (f/m/x) Miejsce pracy: Łódź Technologies we use Expected Snowflake Data Vault About the project We are looking for a Data Engineer with expertise in Snowflake, AWS, and ETL processes, who will work closely with AI scientists and data analysts to design, develop, and maintain data pipelines and systems that support clinical and operational data use cases. Your responsibilities Design and develop data architecture incorporating Snowflake, Immuta, Collibra, and cloud security Implement and optimize ETL/ELT processes, manage raw data, automate workflows, and ensure high performance and reliability of data processing systems Manage data quality and security, monitor quality, and implement metadata management strategies Collaborate with analytics and business teams to identify user needs and deliver comprehensive solutions supporting analytics and reporting Optimize and migrate data systems through data and process conversion from existing systems to Data Vault Define and enforce coding standards, data modeling, and ETL/ELT architecture, ensure compliance with Data Mesh and other modern approaches Coach and mentor the data engineering team, conduct code reviews, participate in architectural discussions, and initiate innovative technological solutions Our requirements Strong expertise in cloud technologies and the Snowflake ecosystem, particularly AWS, Data One Platform, Immuta, Collibra, and cloud security aspects Minimum 5 years of experience in Python programming for building and maintaining data pipelines Advanced knowledge of databases, including query optimization, relational schema design, and MPP using SQL Expertise in data storage technologies, including files, relational databases, MPP, NoSQL, and various data types (structured, unstructured, metrics, logs) Deep familiarity with Data Vault, Data Mesh, dimensional modeling, and metadata management Understanding of business and analytical processes, as well as integration with analytics and reporting systems Experience working in Agile environments, coaching development teams with the use of fluent English and Polish Residing in Poland required Optional Knowledge of Pharma data formats 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.