Senior ETL Developer - AWS Cloud & Data Transformation

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

Benefits offered by this job

Great Place to Work

Solid financials

Contracts with big brands

Centre of internal trainings

Many experts to learn from

Open and accessible management

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 team on the cloud transformation of a data-intensive analytics platform. You will design scalable architectures, modernize legacy components, and ensure performance, reliability, and cost-efficiency in the cloud using AWS technologies.

You will collaborate with software engineers, analysts, and quality engineers to deliver high-quality solutions that meet business needs, while enforcing coding standards and best practices.

Qualifications

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

Responsibilities

• Contributing to the cloud transformation by designing scalable architectures and modernizing legacy components.
• Leading evolution by proposing and implementing modern frameworks and architectural improvements.
• Expanding analytical and predictive capabilities with advanced statistical methods and ML models.
• Collaborating with software engineers and analysts to design and build solutions meeting business needs.
• Ensuring adherence to team design and coding procedures and standards.

Skills

ETL development

SQL Server

SSIS

AWS Glue

AWS Lambda

SQL optimization

SQL standards

English

Job description

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

You will collaborate with software engineers, analysts, and quality engineers to deliver high-quality solutions that meet business needs, while enforcing coding standards and best practices.