Senior ETL Developer (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

Project involves cloud transformation of an analytical platform. Work with Microsoft SQL Server, SSIS and AWS (AWS Glue, AWS Lambda) to design scalable architectures and modernize legacy components. Responsibilities include ETL design and optimization, stored procedure tuning, enforcing SQL best practices and monitoring, and expanding analytical and ML capabilities. Requires minimum 5 years ETL experience and advanced English.

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Senior ETL Developer (f/m/x)

Company: Sii Sp. z o.o.

from: 28 September 2026
to: 28 October 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:hybrid • full office
Białystok, Centrum
Białystok, CentrumJózefa Marjańskiego 3View on map

Requirements

Expected technologies

SQL
AWS
AWS Glue
AWS Lambda

Optional technologies

Python

Our requirements

  • 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

Optional

  • 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

Your responsibilities

  • 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
Company

About the project

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.

This is how we work

Senior ETL Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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