Senior ETL Engineer - AWS Cloud Data Platform

Sii Poland; Toruń; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Great Place to Work

Centre of internal trainings

Profit sharing

Medical care

Open management team

Job summary

Sii Poland is seeking a Senior ETL Developer to join our data-driven team. You will design scalable cloud architectures, modernize legacy components, and ensure performance, reliability and cost-efficiency in AWS-based ETL pipelines.

This role will also involve close collaboration with engineers, analysts and QA, and offers opportunities to optimize SQL code and stored procedures while enforcing coding standards.

Qualifications

• Minimum 5 years of ETL development experience.
• Strong MS SQL Server expertise with advanced query design and modeling.
• Hands-on SSIS design and ETL optimization.
• Experience building ETL processes in AWS (Glue and Lambda).
• Proven ability to optimize stored procedures and data flows.
• Enforce best practices in SQL coding and monitoring.
• Advanced English proficiency.

Responsibilities

• Contribute to cloud transformation by designing scalable ETL architectures.
• Lead architectural improvements and modern frameworks adoption.
• Develop statistical methods and ML models to expand analytics.
• Collaborate with engineers and analysts to deliver data solutions meeting business needs.
• Ensure adherence to design and coding standards.

Skills

ETL development

SQL Server

SSIS

AWS Glue

AWS Lambda

Stored procedure optimization

SQL coding standards

English proficiency

Job description

Sii Poland is seeking a Senior ETL Developer to join our data-driven team. You will design scalable cloud architectures, modernize legacy components, and ensure performance, reliability and cost-efficiency in AWS-based ETL pipelines.

This role will also involve close collaboration with engineers, analysts and QA, and offers opportunities to optimize SQL code and stored procedures while enforcing coding standards.