Mainframe z / OS Systems Programmer

Job Description

Job Description :

We are seeking an experienced z / OS Systems Programmer to join our IT team. The ideal candidate will have strong technical expertise in z / OS systems programming, security administration, performance monitoring, and mainframe system management. You will work closely with cross-functional teams to support and optimize z / OS environments, ensure system stability, and implement efficient solutions.

Key Responsibilities :

Perform z / OS Systems Programming tasks, including configuration, installation, and maintenance of z / OS operating environments.

Manage JES2, z / OS Unix System Services (OMVS), and Storage Management Subsystem (SMS).

Administer and support TSS (Top Secret Security), ensuring appropriate access control and security compliance.

Monitor system performance and perform initial analysis of performance issues to provide solutions and optimizations.

Write and maintain REXX scripts to automate system tasks and processes.

Collaborate with infrastructure and application teams to configure and maintain TLS (certificates, SSL, RSA Keys, SFTP, FTPS) for secure communication.

Utilize SMP / E for system modification and management of z / OS environments.

Create and maintain system-level documentation, technical designs, and support artifacts.

Preferred Qualifications :

Experience with Informatica Power Exchange Administration .

Working knowledge of z / OS Operation, z / OS Networking (VTAM, TCP / IP).

Experience with automated job scheduling tools such as JOBTRAC , terminal emulators like BLUEZONE , and VTAM Session Manager Software ( VTAM / SWITCH ).

Knowledge of performance and resource management tools such as RMF , SMF , WLM , and system resource serialization with GRS .

Familiarity with data storage methods such as VSAM , and Time Sharing Option ( TSO ).

Experience in configuration management tools like SCLM , including administration and configuration.

Experience working with CPM for JOBTRAC for job control and automation management.

Minimum Qualifications :

5+ years of experience in z / OS Systems Programming.

Strong knowledge of JES2, OMVS, SMS, TSS (Top Secret Security), performance monitoring, and REXX scripting.

Excellent problem-solving and analytical skills with the ability to diagnose and resolve technical issues.

Strong communication skills, able to work effectively with technical teams and business stakeholders.