Senior ETL Architect - AWS Cloud Data Modernization

Sii Poland; Wrocław; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland in Wrocław is seeking a Senior ETL Developer to drive the cloud transformation of a data-intensive analytics platform. You will design scalable architectures, modernize legacy components, and optimize ETL processes in AWS, collaborating with software engineers, analysts and quality teams.

The role emphasizes performance, cost efficiency and robust data pipelines, with opportunities to apply SQL Server, SSIS, Python and ML enhancements in a dynamic, results-driven environment.

Qualifications

• Minimum 5 years of experience in ETL development.
• Strong expertise in Microsoft SQL Server with advanced query design.
• Hands-on experience with SSIS for ETL pipeline design and optimization.
• Experience building ETL processes in AWS (Glue and Lambda).
• Proven ability to optimize stored procedures and debug data flows across dependent components.
• Advanced English proficiency.

Responsibilities

• Contribute to cloud transformation by designing scalable architectures and modernizing legacy components.
• Lead technological evolution by proposing and implementing modern frameworks.
• Expand analytics by developing and integrating advanced statistical methods and ML models.
• Collaborate with engineers and analysts to design and build software solutions.
• Ensure adherence to design, coding procedures and standards.

Skills

ETL development

SQL Server

SSIS

AWS

Tools

SSIS

AWS Glue

AWS Lambda

Python

Job description

Sii Poland in Wrocław is seeking a Senior ETL Developer to drive the cloud transformation of a data-intensive analytics platform. You will design scalable architectures, modernize legacy components, and optimize ETL processes in AWS, collaborating with software engineers, analysts and quality teams.

The role emphasizes performance, cost efficiency and robust data pipelines, with opportunities to apply SQL Server, SSIS, Python and ML enhancements in a dynamic, results-driven environment.