Sr System DB2 Software Engineer

MainframeMaster; Buenos Aires; Híbrido; ARS 1.200.000 - 1.800.000; Jornada completa

Descripción de la vacante

MainframeMaster is seeking a Sr System DB2 Software Engineer to ensure the performance, availability, security, and reliability of DB2 databases on IBM Mainframe platforms. You will be a valued member of the Database Engineering team and collaborate with infrastructure, application support, and operations to deliver scalable, high-performing database solutions.

In this role, you will administer, maintain, and support DB2 databases, perform installations and upgrades, monitor health and

Formación

• 10+ years of hands‑on experience supporting and administering DB2 databases in IBM Mainframe environments.
• Strong expertise in DB2 Administration, Utilities, Backup & Recovery, and database performance management.
• Proven experience with DB2 Performance Monitoring, SQL Tuning, and query optimization.
• Strong knowledge of Mainframe technologies including z/OS, JCL, TSO/ISPF, and DB2 Utilities.
• Experience performing database upgrades, migrations, and security administration activities.
• Advanced English communication skills, both written and verbal.
• Strong analytical, troubleshooting, and problem‑solving abilities.
• Experience supporting mission‑critical production environments.

Responsabilidades

• Administer, maintain, and support DB2 databases within large-scale Mainframe environments.
• Perform DB2 installations, configurations, upgrades, migrations, and ongoing maintenance activities.
• Monitor database health, capacity, and performance, implementing tuning recommendations to optimize system efficiency.
• Troubleshoot and resolve database-related incidents, production issues, and performance bottlenecks.
• Manage backup, recovery, disaster recovery, and database security processes to ensure business continuity and compliance.
• Support application teams with SQL tuning, query optimization, and database design reviews.
• Ensure database availability, reliability, and adherence to organizational standards and best practices.
• Participate in critical production implementations and on-call support activities as required.

Conocimientos

DB2 Administration

Mainframe z/OS

SQL Tuning

Backup & Recovery

Performance Monitoring

English Communication

Herramientas

JCL

TSO/ISPF

DB2 Utilities

Descripción del empleo

Sr System DB2 Software Engineer

As a Sr System DB2 Software Engineer, you will make an impact by ensuring the performance, availability, security, and reliability of DB2 database environments running on IBM Mainframe platforms. You will be a valued member of the Database Engineering team and work collaboratively with infrastructure, application support, and operations teams to deliver scalable, high-performing, and resilient database solutions.

About the role

In this role, you will:

• Administer, maintain, and support DB2 databases within large-scale Mainframe environments.
• Perform DB2 installations, configurations, upgrades, migrations, and ongoing maintenance activities.
• Monitor database health, capacity, and performance, implementing tuning recommendations to optimize system efficiency.
• Troubleshoot and resolve database-related incidents, production issues, and performance bottlenecks.
• Manage backup, recovery, disaster recovery, and database security processes to ensure business continuity and compliance.
• Support application teams with SQL tuning, query optimization, and database design reviews.
• Ensure database availability, reliability, and adherence to organizational standards and best practices.
• Participate in critical production implementations and on-call support activities as required.

Work model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3 days per week in a Cognizant office and 2 days per week working remotely.

What you need to have to be considered

• 10+ years of hands‑on experience supporting and administering DB2 databases in IBM Mainframe environments.
• Strong expertise in DB2 Administration, Utilities, Backup & Recovery, and database performance management.
• Proven experience with DB2 Performance Monitoring, SQL Tuning, and query optimization.
• Strong knowledge of Mainframe technologies including z/OS, JCL, TSO/ISPF, and DB2 Utilities.
• Experience performing database upgrades, migrations, and security administration activities.
• Advanced English communication skills, both written and verbal.
• Strong analytical, troubleshooting, and problem‑solving abilities.
• Experience supporting mission‑critical production environments.

These will help you stand out

• Experience with COBOL, CICS, or other Mainframe application support technologies.
• Exposure to large enterprise environments with high availability requirements.
• Experience with disaster recovery planning and implementation.
• Knowledge of database automation and operational efficiency best practices.
• Ability to collaborate effectively with cross‑functional teams and stakeholders.

We're excited to meet people who share our mission and can make an impact in a variety of ways.

Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role