Senior Cloud ETL Engineer – AWS Data Platform

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

Benefits offered by this job

Great Place to Work

Centre of internal trainings

Profit sharing

Medical care

Open and accessible management team

Job summary

Sii Poland is seeking a Senior ETL Developer to drive cloud modernization of a data-intensive analytical platform. You will design scalable architectures, optimize ETL pipelines in AWS, and collaborate with software engineers, analysts and QA to deliver reliable data solutions.

Ideal candidates have strong SQL Server/SSIS experience, advanced SQL and data modeling skills, and fluent English. You will work on cost-efficient cloud transformations and performance improvements across the stack.

Qualifications

• Minimum 5 years of ETL development experience.
• Strong Microsoft SQL Server and relational data modeling.
• Hands-on SSIS for ETL design and optimization.
• Experience building ETL processes in AWS (Glue and Lambda).
• Proven ability to optimize stored procedures and data flows.
• Excellent SQL coding standards and operational monitoring.
• Advanced English.

Responsibilities

• Contribute to cloud transformation by designing scalable architectures and modernizing legacy components.
• Lead continual technological evolution by proposing and implementing modern frameworks and architectural improvements.
• Expand analytical capabilities by developing advanced statistical methods and ML models.
• Collaborate with software engineers and analysts to design and build data solutions meeting business needs.
• Ensure adherence to team design and coding standards.

Skills

ETL development

SQL design

AWS Glue

AWS Lambda

SQL performance tuning

English proficiency

Tools

SSIS

Microsoft SQL Server

Python

Windows OS

Job description

Sii Poland is seeking a Senior ETL Developer to drive cloud modernization of a data-intensive analytical platform. You will design scalable architectures, optimize ETL pipelines in AWS, and collaborate with software engineers, analysts and QA to deliver reliable data solutions.

Ideal candidates have strong SQL Server/SSIS experience, advanced SQL and data modeling skills, and fluent English. You will work on cost-efficient cloud transformations and performance improvements across the stack.