Senior ETL Developer: AWS Cloud Data Leader

Sii Poland; Katowice; 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 is seeking a Senior ETL Developer to join our cloud transformation team on a data-intensive analytical platform. You will design scalable architectures, modernize legacy components, and ensure performance and cost-efficiency in the cloud environment.

You will collaborate with software engineers, analysts, and QA to deliver high-quality solutions, optimize ETL pipelines, and enforce coding standards while expanding analytical capabilities with advanced techniques.

Qualifications

• Minimum 5+ years of ETL development experience.
• Strong expertise with Microsoft SQL Server and relational data modeling.
• Hands-on experience with SSIS for ETL design and optimization.
• Practical experience building ETL processes in AWS (Glue and Lambda).
• Proven ability to optimize stored procedures and ensure data flow quality.
• English language at advanced level.

Responsibilities

• Contribute to cloud transformation by designing scalable architectures.
• Lead evolution by introducing modern frameworks and architectural improvements.
• Develop and integrate advanced statistical methods and ML models.
• Collaborate with engineers and analysts to design and build software solutions meeting business needs.
• Ensure adherence to coding procedures and standards.

Skills

ETL development

SQL Server

SSIS

AWS ETL

Python

Data modeling

SQL optimization

English

Tools

AWS Glue

AWS Lambda

SQL Server Management Studio

Job description

Sii Poland is seeking a Senior ETL Developer to join our cloud transformation team on a data-intensive analytical platform. You will design scalable architectures, modernize legacy components, and ensure performance and cost-efficiency in the cloud environment.

You will collaborate with software engineers, analysts, and QA to deliver high-quality solutions, optimize ETL pipelines, and enforce coding standards while expanding analytical capabilities with advanced techniques.