Senior ETL Developer

Sii Polska KRAKÓW POZNAŃ WARSZAWA TORUŃ WROCŁAW RZESZÓW BYDGOSZCZ ŁÓDŹ BIAŁYSTOK PIŁA LUBLIN KATOWICE GDAŃSK SZCZECIN 2026-09-29
  • Minimum 5 years of experience in ETL development
  • Strong expertise in Microsoft SQL Server, including advanced query design and relational data modeling
  • Hands-on experience with SSIS for ETL pipeline design and optimization
  • Practical experience building ETL processes in AWS, including AWS Glue and AWS Lambda functions
  • Proven ability to optimize stored procedures and debug data flows across dependent components
  • Ability to enforce best practices in SQL coding standards and operational monitoring
  • Advanced level of English

  • Practical experience in the Healthcare IT domain
  • Experience in developing highly available architectures in the cloud
  • Strong knowledge of Microsoft Windows operating systems and development tools
  • Knowledge of statistical modeling methods
  • Hands-on experience with Python
We are looking for a Senior ETL Developer to join our team working on the cloud transformation of a data-intensive analytical platform. In this role, you will design scalable architectures, modernize legacy components, and ensure performance, reliability, and cost-efficiency in the cloud environment. You will collaborate closely with a team of software engineers, analysts, and quality engineers to deliver high-quality software solutions that meet business needs. If you are passionate about leveraging AWS technologies and optimizing ETL processes, this opportunity may be the right fit for you. ,[Contributing to the cloud transformation of a data-intensive analytical platform by designing scalable architectures and modernizing legacy components, Leading continuous technological evolution by proposing and implementing modern frameworks and architectural improvements, Expanding analytical and predictive capabilities by developing and integrating advanced statistical methods and machine learning models, Working closely with a team of software engineers and analysts to design and build software solutions that meet business needs, Ensuring adherence to team design and coding procedures and standards] Requirements: SQL, AWS, AWS Glue, AWS Lambda, Python Additionally: Medical care, Insurance, Sport cards, Language courses, Refferal programs, Welcome packs and other occasional gifts, Passion Sponsorship program, Regular integration events and trips, Contracts with the biggest brands, Diverse portfolio of clients, Flexible forms of employment, Internal training center, Mentoring program, Buddy Program & efficient onboarding process, Technology communities, Jubilee rewards, Profit sharing, Sport & hobby communities, Breakfast, drinks and fresh fruits in the office, Wide portfolio of technologies, Solid financial situation, Comfortable and well-equipped offices, MySii app, Invoice kiosk.