Senior Data Engineer: Build Scalable Pipelines & Data Platforms

Worldline; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Private medical & life insurance

Public transportation allowance

Annual bonus

Job summary

Worldline in Poland is seeking a Data Engineer to design, build, and maintain scalable data pipelines and platforms, enabling reliable data for analytical solutions. You will collaborate with developers, analysts, and stakeholders to ensure data is accessible, accurate, and efficiently processed.

You will join a global payments technology leader, working with data from various sources, optimizing workflows, and helping secure data.

Qualifications

• 4+ years of hands-on experience in a Data Engineer/Data Developer role.
• Advanced proficiency in SQL queries and tuning.
• Java programming skills.
• Experience with cloud providers and cloud data warehouses.
• Familiarity with workflow/orchestration tools.
• Fluent English (written and spoken).

Responsibilities

• Build Data Pipelines: Design, implement, and maintain scalable, robust automated data pipelines.
• Manage Data Architecture: Optimize and structure databases, modern data warehouses, and data lakes.
• Integrate Systems: Connect and ingest data from diverse sources including APIs, CRMs, production logs, and databases.
• Performance Tuning: Write complex, optimized SQL queries and continuously monitor database system performance.
• Data Quality & Governance: Establish data validation frameworks and ensure compliance with internal security and data privacy standards.
• Cross-functional Collaboration: Work closely with Data Scientists, Business Analysts, and Backend Software Engineers to deliver clean datasets.

Skills

SQL

Java

Cloud platforms

Workflow management

English communication

Data orchestration

Tools

CI/CD tools

Containerization

Streaming technologies

Job description

Worldline in Poland is seeking a Data Engineer to design, build, and maintain scalable data pipelines and platforms, enabling reliable data for analytical solutions. You will collaborate with developers, analysts, and stakeholders to ensure data is accessible, accurate, and efficiently processed.

You will join a global payments technology leader, working with data from various sources, optimizing workflows, and helping secure data.