Mainframe Database Engineer

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

We are a $13+ billion global technology company, home to more than 224,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud, and AI, powered by a broad portfolio of technology services and products.HCLTech is a globally recognized leader in the Tech and IT industry, but we've never forgotten the startup mindset that got us here. We've always approached our work with an idea-first attitude because every one of our accomplishments -no matter how big or small -can be traced back to an idea's single spark.

It's that spark -that inner drive -that sets our people apart from our competitors. It enables us not just to pull off game-changing feat after game-changing feat but to better our world in the process. We want you to find your spark. Because that's what drives you to be better, be more and ultimately, be more fulfilled.

Job Title :DB2 Mainframe - z/OS / SQL / Performance Engineer

Location :Paris, France

Responsibilities

• Administer, monitor and support DB2 databases in mainframe or enterprise environments.
• Analyze and optimize SQL queries, database performance and access paths.
• Support production incidents, service requests and root cause analysis activities.
• Manage database changes, maintenance tasks, backup, restore and recovery activities.
• Collaborate with application, mainframe, infrastructure and production teams.
• Contribute to capacity, availability, monitoring and operational improvement actions.
• Prepare and maintain technical documentation, runbooks and operating procedures.
• Support continuous improvement of DB2 platform reliability and service quality.

Mandatory skills

• Strong experience with DB2 database administration or DB2 production support.
• Good knowledge of DB2 on z/OS and/or DB2 LUW environments.
• Strong SQL skills, including query analysis and performance tuning.
• Understanding of mainframe environments, JCL and related operational processes.
• Experience with backup, restore, recovery and database maintenance activities.
• Ability to troubleshoot production issues and perform root cause analysis.
• Good documentation and operational support capabilities.
• Strong communication skills in English.

Specific requirements

• Ability to work autonomously in a complex enterprise or banking environment.
• Strong analytical mindset and attention to database performance and reliability.
• Ability to document technical procedures, incidents and improvement actions.
• Availability for hybrid work in Paris.

Appreciated skills

• Mainframe monitoring or scheduling tools experience.
• Knowledge of stored procedures or batch processing.
• ITIL process awareness.
• Experience in regulated or financial services environments.