Senior Data Engineer @ N-iX

N-iX; Polska; Remote; PLN 211,000 - 297,000; Full time

Job summary

A leading technology firm in Poland is seeking a Senior Data Engineer to support the migration of SQL Server data to a cloud-based Snowflake environment. The role involves building data pipelines, optimizing cloud processing, and collaborating with engineers. Ideal candidates will have strong SQL and Python skills, and experience with cloud data technologies. This position offers flexible working hours, remote work options, and various benefits.

Benefits

Flexible working hours

Remote work possibility

English classes

Active tech community

Training budget

International team

Mentoring program

Compensation of certifications

Free coffee

Modern office building

Qualifications

• Experience with cloud data warehouses like Snowflake and AWS S3.
• Solid SQL skills; experience in migrating legacy environments to cloud platforms.
• Proficiency in Python for data pipeline development.

Responsibilities

• Build and modify data pipelines to migrate data.
• Refactor legacy ETL jobs for cloud environments.
• Optimize performance and costs of cloud data processing.

Skills

Cloud data warehouse technologies

SQL

ETL frameworks (SSIS, dbt)

Python

Documentation skills

Tools

Snowflake

AWS S3

SQL Server

Oracle

PostgreSQL

MySQL

Job description

Senior Data Engineer @ N-iX - Polska

As a Senior/Middle Data Engineer, you will support the migration of legacy on-premises SQL Server data warehouse to a cloud-based Snowflake environment. The project involves integrating various data sources, refactoring ETL processes, and ensuring efficient, reliable data movement for analytics and reporting.

Responsibilities

• Build and modify data pipelines to migrate data from SQL Server and other databases (Azure SQL, Oracle, Aurora) to AWS S3 and Snowflake.
• Refactor legacy ETL jobs (SSIS, Transact-SQL) for use in cloud environments.
• Implement data transformations and staging using dbt and/or similar tools.
• Optimize the performance and costs of cloud data processing and storage.
• Work collaboratively with client’s and N-iX engineers, ensuring smooth handoff and documentation.
• Participate in QA, testing, deployment, and post-migration validation.

Must-Have Technologies

• Experience with cloud data warehouse technologies, including Snowflake and AWS S3.
• Solid SQL skills; experience migrating legacy environments to cloud platforms.
• Familiarity with ETL frameworks and tools (preferably SSIS, dbt).
• Proficiency in Python for data pipeline development and automation.
• Strong documentation and communication skills; able to work in cross-functional teams.

Nice to have

• Prior experience in large-scale data migration projects.
• Background working with varied database platforms (SQL Server, Oracle, PostgreSQL, MySQL).
• Knowledge of reporting platforms such as Looker is a plus.

Benefits

• Flexible working hours and remote work possibility
• English classes
• Active tech community
• Training budget
• International team
• Mentoring program
• Compensation of certifications
• Free coffee
• Kitchen
• Modern office building