Senior Data Engineer

Eleks; Polska; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

ELEKS is seeking a Data Engineer to join a project for a leading insurance broker. You will design and maintain reliable data pipelines with a focus on performance and availability, leveraging MS SQL, Databricks, T-SQL, Spark, and Python.

You will collaborate in an Agile environment, review designs, estimate user stories, and drive code quality. The role offers opportunities to influence technology choices and grow within a dynamic team.

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.
• In-depth knowledge of indexes, execution plans, and query optimization.
• Proficient in Python scripting.
• Knowledge of Delta Sharing and Unity Catalog.
• Experience with data synchronization workflows.
• Upper-Intermediate English.

Responsibilities

• Design, develop, and maintain reliable software focused on performance and availability.
• Analyze requirements, review designs, and estimate user stories using various project methodologies.
• Proactively propose refactoring and optimization improvements.
• Share knowledge and contribute to internal promotion verification processes.
• Stay up-to-date with modern technology and obtain professional certifications.
• Support less experienced developers by training and monitoring tasks.

Skills

Data engineering

MS SQL

Databricks

T-SQL

Spark

Python scripting

Delta Sharing

Unity Catalog

Query optimization

English (Upper-Intermediate)

Job description

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.

REQUIREMENTS

• 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
• 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

RESPONSIBILITIES

• 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

WHAT YOU WILL GET WITH ELEKS

• Close cooperation with a customer
• Challenging tasks
• Ability to influence project technologies
• Team of professionals
• Dynamic environment with low level of bureaucracy

ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.

Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting and dedicated teams.