Senior Data Engineer (f/m/x)

Sii Poland; Białystok; On-site; PLN 240,000 - 320,000; Full time

Benefits offered by this job

Great Place to Work

Centre of internal trainings

Profit sharing

Regular integration events and trips

Medical care

Many experts you can learn from

Open and accessible management team

Job summary

Sii Poland is seeking an experienced Data Engineer to join our data engineering team in a fast-growing environment where data is the main product. You will design and maintain robust data pipelines on Azure Databricks, and help define the data model that delivers trusted datasets to clients.

Collaborate with engineers, data analysts, and product owners to deliver end-to-end solutions—from data acquisition to delivery—while mentoring peers, improving performance, security, and cost efficiency;

Qualifications

• 8+ years of experience in data engineering.
• Strong knowledge of Apache Spark, Databricks, Snowflake, dbt, and Python.
• Experience designing solutions based on Delta Lake or Apache Iceberg.
• Ability to lead complex data engineering projects and collaborate with business stakeholders.
• Experience in technical leadership and mentoring team members.
• Very good command of English - C1 level.

Responsibilities

• Designing and developing advanced data pipelines in the Azure Databricks environment
• Creating scalable data architecture using lakehouse technologies
• Defining standards and best practices in the area of Data Engineering
• Collaborating with Data Analytics, Data Science, and Product teams to deliver comprehensive solutions
• Mentoring less experienced engineers and providing technical support to the team
• Optimizing performance, reliability, security, and cost of the data platform

Skills

Apache Spark

Databricks

Snowflake

dbt

Python

Leadership

Mentoring

English (C1)

Tools

Delta Lake

Apache Iceberg

HDFS

Azure Databricks

Job description

We are looking for an experienced Data Engineer to join our data engineering team in a rapidly growing environment where data is the main product. You will work in a highly skilled team responsible for developing and maintaining data pipelines on the Azure platform using Databricks, supporting all key business functions. Your main goal will be to build and maintain robust, secure data pipelines and help define the data model that delivers trusted datasets to our clients. You will collaborate with a team of engineers, data analysts, and product owners to deliver comprehensive solutions – from data acquisition to delivery to the end client.

Your tasks

• Designing and developing advanced data pipelines in the Azure Databricks environment
• Creating scalable data architecture using lakehouse technologies
• Defining standards and best practices in the area of Data Engineering
• Collaborating with Data Analytics, Data Science, and Product teams to deliver comprehensive solutions
• Mentoring less experienced engineers and providing technical support to the team
• Optimizing performance, reliability, security, and cost of the data platform

Requirements

• Minimum 8 years of experience in data engineering
• Strong knowledge of Apache Spark, Databricks, Snowflake, dbt, and Python
• Previous work in designing solutions based on Delta Lake, Apache Iceberg, HDFS, or related data storage technologies
• Ability to independently lead complex data engineering projects and collaborate with business stakeholders
• Experience in technical leadership and mentoring team members
• Very good command of English - C1 level
• Willingness to visit the office in Krakow - once a month

Nice to have

• Experience working with financial data or ETF products, as well as knowledge of Data Modeling, Great Expectations, or Deequ

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• 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 no. JOB-FB7R4