Senior Data Engineer (AI-Native project, JR803)

Eleks; Polska; On-site; PLN 180,000 - 280,000; Full time

Job summary

ELEKS Software Engineering and Development Office in Poland seeks a Senior Data Engineer to join our client projects across Central Europe. You will architect and maintain high-performance data pipelines, focusing on reliability and scalability within Azure cloud environments.

The role requires hands-on experience with MS SQL, Databricks, Spark, and Python, plus Delta Sharing and Unity Catalog knowledge. Strong English communication is expected for collaboration and reviews.

Qualifications

• 4+ years of experience as a Data Engineer.
• Strong expertise in MS SQL and Databricks in cloud environments.
• Advanced mastery of T-SQL and Spark.
• Solid knowledge of Azure Cloud and query optimization.

Responsibilities

• Design, develop, and maintain reliable data pipelines with focus on performance and availability.
• Analyze requirements and estimate work items using Agile or Waterfall methodologies.
• Refactor and optimize code following best software development practices.
• Share knowledge and mentor juniors to improve team standards.
• Stay updated with modern technologies and pursue professional certifications.
• Support and oversee data synchronization workflows.

Skills

Data engineering

Cloud data platforms

Tools

MS SQL

Databricks

Azure Cloud

Python

Spark

Delta Sharing

Unity Catalog

Job description

ELEKS Software Engineering and Development Office is looking for a Senior Data Engineer in Poland, Croatia, or Ukraine.

ABOUT PROJECT

Our client is one of the largest insurance brokers in the world, working in the Insurance business domain and providing risk management, insurance, and reinsurance brokerage, and investment banking solutions.

• 4+ years of experience as a Data Engineer
• Strong expertise in MS SQL and Databricks in cloud environments, including DBA responsibilities focused on performance tuning and workflows
• Advanced mastery of T‑SQL and Spark
• Strong expertise in Azure Cloud
• In‑depth knowledge of indexes, execution plans, query optimization, and Python scripting
• Solid understanding of Delta Sharing, Unity Catalog, computing resources, and jobs
• Hands‑on experience with data synchronization workflows
• Upper‑Intermediate level of English

• Design, develop, and maintain reliable software in line with technical requirements, focusing on performance and availability
• Analyze requirements, review designs, and estimate user stories following project methodology (Agile, Waterfall, etc)
• Proactively propose code refactoring and optimization improvements according to the best software development practices and coding standards
• Help maintain and improve high-quality standards within the developer community by sharing knowledge, conducting tech talks, and participating in the internal promotion verification process
• Stay up-to‑date with modern technology and obtain professional certifications
• Support less experienced developers by providing training, distributing, and monitoring tasks