Senior DB2 Data Engineer: Legacy Modernization (Remote)

Holcim; Ciudad de Mendoza; Remote; ARS 1,200,000 - 2,400,000; Full time

Job summary

Holcim is seeking a Senior Data Engineer to design, develop, and maintain reliable data pipelines connecting enterprise applications, payroll systems, and modern cloud platforms. The role requires strong IBM DB2 expertise, experience with legacy data integration, and proficiency in Python or Java.

The ideal candidate combines deep database knowledge with advanced SQL skills and hands-on ETL/ELT development.

Qualifications

• 5+ years of professional Data Engineering experience.
• Strong hands-on expertise in IBM DB2 (LUW and/or DB2 for i) — mandatory.
• Proven experience extracting and integrating data from legacy DB2 environments.
• Strong programming skills in Python and/or Java.
• Advanced SQL, stored procedures, query optimization, and database performance tuning.
• Experience designing, developing, and supporting production ETL/ELT pipelines.
• Knowledge of data architecture, data modeling, data quality, and integration patterns.
• Experience with production monitoring, troubleshooting, and root-cause analysis.
• Advanced English proficiency (C1) for technical collaboration and architecture discussions.

Responsibilities

• Design, develop, and maintain batch and event-driven data pipelines.
• Optimize IBM DB2 queries, stored procedures, indexes, and data extraction processes.
• Build integrations between DB2, enterprise applications, ERP systems, and AWS cloud services.
• Implement ETL/ELT processes, data validation, reconciliation, and quality controls.
• Monitor production pipelines, troubleshoot incidents, and ensure data reliability.
• Design scalable data architectures and support legacy-to-cloud modernization.
• Collaborate with engineering, architecture, product, and operations teams.

Skills

Python

Java

SQL

Data engineering

English proficiency (C1)

Tools

IBM DB2 (LUW)

AWS

Job description

Holcim is seeking a Senior Data Engineer to design, develop, and maintain reliable data pipelines connecting enterprise applications, payroll systems, and modern cloud platforms. The role requires strong IBM DB2 expertise, experience with legacy data integration, and proficiency in Python or Java.

The ideal candidate combines deep database knowledge with advanced SQL skills and hands-on ETL/ELT development.