Data Engineer - Senior

The opportunity

As a Data Engineer, you will design, build, and maintain scalable data pipelines and data platforms that enable reliable, high-quality data for business users and analytical solutions. You will work closely with developers, analysts, and business stakeholders to ensure data is accessible, accurate, and efficiently processed. The role involves integrating data from multiple sources, optimizing data workflows, and contributing to the continuous improvement of our data architecture and engineering practices. You will also help ensure that our data solutions are secure, resilient, and aligned with the organization's technology standards.

Day-to-day responsibilities

Core 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.

Who are we looking for

Requirements (Must-Have)

• Experience: 4+ years of professional, hands-on experience in a Data Engineering or Data Developer role.
• SQL: Advanced proficiency in writing and tuning complex SQL queries.
• Programming: Solid programming skills in Java
• Cloud & Modern Data Stack: Hands-on experience with cloud providers and cloud warehouses.
• Data Orchestration: Strong familiarity with workflow management tools
• Communication: Fluency in English (written and spoken) to collaborate effectively with a global team.

Nice-to-Have Skills

• Experience with CI/CD tools and containerization.
• Familiarity with streaming technologies.

Other skills

• SQL and Database Management
• Programming and Data Processing
• ETL/ELT and Data Pipeline Development
• Cloud Data Platforms and Big Data Technologies
• Data Modeling and Problem-Solving

Perks & Benefits

At Worldline, you’ll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

• Private medical & life insurance
• MyBenefit Platform
• Holiday allowance
• Public transportation allowance
• Meal allowance
• Annual bonus

Pursuant to the Article 24 sec. 6 of the Act of 14 June 2024 on the protection of whistleblowers, we inform you that Worldline Financial Services (Europe) S.A., a joint-stock company, Branch in Poland (hereinafter referred to as Worldline) is governed by the Regulations on the receipt of internal reports and taking follow-up actions (hereinafter referred to as the Regulations).