Senior Data Integration Engineer

Link Group; Wrocław, Poznań, Kraków; On-site; PLN 180,000 - 260,000; Full time

Job summary

Link Group is seeking a Senior Data Integration Engineer to drive a complex data migration across enterprise HR platforms. You will design and implement robust data pipelines, APIs, and data mappings while coordinating with stakeholders to ensure accurate, timely transfers.

The role combines hands-on engineering with technical leadership to establish scalable data flows, quality controls, and maintainable documentation across systems.

Qualifications

• Proven experience developing ETL/ELT pipelines and data integration solutions.
• Strong SQL and Python programming skills.
• Experience with APIs, data connectors and cross-system integrations.
• Good understanding of data modelling, data transformation and data architecture.
• Experience delivering or supporting complex data migration projects.
• Strong analytical and troubleshooting skills, especially with data quality issues.
• Ability to work independently and collaborate with technical and non-technical stakeholders.
• Excellent documentation and communication skills.

Responsibilities

• Design, develop and maintain reliable data pipelines and integrations between enterprise systems.
• Implement API-based data exchange and automated data ingestion processes.
• Define data mapping rules and transformation standards in collaboration with business stakeholders.
• Coordinate technical migration activities, monitor progress and ensure successful delivery.
• Investigate data inconsistencies and integration failures, identifying root causes and implementing long-term solutions.
• Translate business requirements into scalable technical solutions.
• Apply data modelling and architecture best practices, maintaining clear technical documentation.

Skills

ETL/ELT pipelines

SQL

Python

APIs

Data modelling

Data architecture

Data migration

Analytical skills

Documentation

Stakeholder collaboration

Job description

Senior Data Integration Engineer

About the Role

We are looking for a Senior Data Integration Engineer to support a complex data migration initiative involving enterprise HR platforms. The role combines hands-on data engineering, system integration and technical coordination to ensure data is transferred accurately, consistently and reliably between systems. You will work closely with business and technical stakeholders to define data requirements, resolve integration challenges and establish robust, maintainable data flows.

Key Responsibilities

• Design, develop and maintain reliable data pipelines and integrations between enterprise systems.
• Implement API-based data exchange and automated data ingestion processes.
• Define data mapping rules and transformation standards in collaboration with business stakeholders.
• Coordinate technical migration activities, monitor progress and ensure successful delivery.
• Investigate data inconsistencies and integration failures, identifying root causes and implementing long-term solutions.
• Translate business requirements into scalable technical solutions.
• Apply data modelling and architecture best practices, maintaining clear technical documentation.

Requirements

• Proven experience developing ETL/ELT pipelines and data integration solutions.
• Strong SQL and Python programming skills.
• Practical experience with APIs, data connectors and cross-system integrations.
• Good understanding of data modelling, data transformation and data architecture.
• Experience delivering or supporting complex data migration projects.
• Strong analytical and troubleshooting skills, particularly when working with data quality issues.
• Ability to work independently and collaborate effectively with technical and non-technical stakeholders.
• Excellent documentation and communication skills.

Nice to Have

• Experience integrating enterprise HR platforms and handling employee-related data.
• Familiarity with Workday system
• Familiarity with data loading and extraction tools used by HR systems.
• Experience migrating historical employee, employment and compensation records.
• Knowledge of cloud-based data platforms.
• Experience coordinating technical delivery and advising stakeholders on integration architecture.