Mainframe DB2 Performance Engineer - Hybrid Paris

HCL Technologies Limited; Paris; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

HCL Technologies Limited in Paris is seeking a DB2 Mainframe - z/OS / SQL / Performance Engineer to join our hybrid work model.

You will administer DB2 databases, analyze SQL performance, and support incident resolution while collaborating with application, mainframe, and infrastructure teams to raise reliability and efficiency.

Fluent English and strong mainframe experience are required, with a passion for optimization in a fast-growing, global tech environment.

Qualifications

• DB2 administration experience in mainframe or LUW environments.
• Strong SQL skills with performance tuning.
• Knowledge of JCL and mainframe operational processes.
• Experience with backup, restore and recovery activities.
• Ability to troubleshoot production incidents and perform root cause analysis.

Responsibilities

• Administer, monitor and support DB2 databases.
• Analyze and optimize SQL queries and performance.
• Support production incidents and service requests.
• Manage changes, maintenance tasks, backups and recovery.
• Collaborate with cross-functional teams and maintain runbooks.
• Contribute to reliability and service quality improvements.
• Prepare technical documentation and procedures.
• Support capacity and availability improvements.

Skills

Analytical mindset

Autonomous worker

Strong communication in English

Problem solving

Tools

DB2 on z/OS

DB2 LUW

JCL

SQL

Backup/Recovery tools

Job description

HCL Technologies Limited in Paris is seeking a DB2 Mainframe - z/OS / SQL / Performance Engineer to join our hybrid work model.

You will administer DB2 databases, analyze SQL performance, and support incident resolution while collaborating with application, mainframe, and infrastructure teams to raise reliability and efficiency.

Fluent English and strong mainframe experience are required, with a passion for optimization in a fast-growing, global tech environment.