December 17, 2025

Senior Data Engineer z AWS i Snowflake

Senior • Remote

Warsaw, Poland

Introduction to offer

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.

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.


Your tasks

  • 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


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


Nice-to-have requirements

  • Knowledge of Pharma data formats is a big plus


Benefity, które czekają na Ciebie:  

  • Tytuł Great Place to Work od 2015 roku - to dzięki opiniom pracowników otrzymujemy tytuł i wdrażamy nowe pomysły 

  • Stabilność zatrudnienia - 2,1 MLD PLN przychodu, brak długów, od 2006 roku na rynku 

  • Dzielimy się zyskiem z pracownikami - od 2022 roku przeznaczyliśmy na ten cel już ponad 76 milionów PLN 

  • Bogaty pakiet benefitów - prywatna opieka zdrowotna, platforma kafeteryjna, zniżki na samochody i więcej 

  • Komfortowe miejsce pracy - pracuj w naszych biurach klasy A lub zdalnie 

  • Dziesiątki fascynujących projektów dla prestiżowych marek z całego świata 

  • 1 000 000 PLN rocznie na Twoje pomysły - taką kwotą wspieramy pasje i akcje wolontariackie naszych pracowników 

  • Stawiamy na Twój rozwój - meetupy, webinary, platforma szkoleniowa i blog technologiczny – Ty wybierasz 

  • Fantastyczna atmosfera stworzona przez wszystkich Sii Power People 


Dołącz do zespołu Sii – rozwijaj umiejętności, zdobywaj doświadczenie i buduj karierę!