Mainframe Systems Programmer

Job Name: Mainframe System Programmer

Company: Atos

Location: Mexico – Remote

Job Type: Full-time

Salary Range: MXN 70,000 – 79,000 gross monthly

Role Overview:

Atos is looking for a Mainframe System Programmer to support the installation, maintenance, and administration of the z/OS Mainframe operating system. This role plays a key part in ensuring system reliability, performance, and security while supporting continuous improvement initiatives in a global and collaborative environment.

Key Responsibilities:

• Install, upgrade, and administer the z/OS operating system, including RSU maintenance

• Perform system changes in line with Atos security standards and internal controls

• Provide IPL support and resolve JES2/JES3 issues

• Maintain TSO/ISPF environments, including CLIST, REXX, and PROC maintenance

• Perform MVS tuning and manage PARMLIB

• Create and manage LPARs

• Execute SMP/E activities including Receive, Apply, USERMOD, and exit management

• Install and upgrade ISV products such as CA1, CA7, CA11, Syncsort, File-Aid, Abend-Aid, Mainview, System Automation, ASG, and BMC products

• Support testing, implementation, and deployment of new or improved systems and product upgrades

• Collaborate with internal teams, management, and clients to drive continuous service improvement

• Participate in on-call rotation as required

Must-have Qualifications / Skills:

• Proven experience in installation, maintenance, problem diagnosis, and administration of z/OS

• Strong working knowledge of SMP/E

• Proficiency in JCL, ISPF, REXX, CLIST, and SMP/E

• Experience with multiple mainframe products including security, resource, performance, storage, scheduling, application, and hardware management tools

• Verbal and written proficiency in English

Educational Background:

• Bachelor’s degree in Computer Science or a related field, or a relevant technical certification

Professional Experience:

• Experience supporting enterprise mainframe environments

• Hands-on involvement in z/OS installations and upgrades

Soft Skills:

• Strong communication and stakeholder management skills

• Ability to work independently and collaboratively in a remote environment

• Analytical mindset with a focus on system stability and service quality

Good-to-have Qualifications / Skills:

• Experience with multiple ISV products across the mainframe ecosystem

• Familiarity with large, complex, or global IT service environments

• System-level experience with CICS, IMS, DB2, Communications, and MQ is a strong plus; candidates with this experience will be prioritized for interview