Mainframe Specialist (REXX) (M,W,D)

TEKsystems; Kraków; Hybrid; PLN 220,000 - 317,000; Full time

Benefits offered by this job

Remote work

Job summary

TEKsystems is seeking a Mainframe Specialist (REXX) for a long-term freelance project in Kraków, Poland. The role is hybrid and offers remote work integration with a multinational infrastructure team.

The candidate will administer z/OS mainframe environments, develop automation via REXX, and optimize CA OPS/MVS. Strong problem-solving skills and English communication are essential for success.

Qualifications

• Expertise in IBM z/OS mainframe environments.
• Hands-on expertise with OPS/MVS and CA OPS/MVS.
• Strong knowledge of REXX scripting and z/OS.

Responsibilities

• Administration and support of IBM z/OS mainframe environments.
• Development and maintenance of automation solutions using REXX.
• Configuration and optimization of CA OPS/MVS (OPSMVS).
• Incident analysis, troubleshooting, and performance improvements.
• Support for system upgrades, maintenance activities, and automation initiatives.
• Collaboration with international infrastructure and operations teams.

Skills

Mainframe expertise

REXX scripting

z/OS knowledge

English communication

Tools

OPS/MVS

CA OPS/MVS

z/OS

REXX

Job description

Mainframe Specialist (OPS/MVS & REXX) | Freelance | Hybrid

We are currently looking for a Mainframe Specialist to support a long-term project in an enterprise environment.

• Administration and support of IBM z/OS mainframe environments
• Development and maintenance of automation solutions using REXX
• Configuration and optimization of CA OPS/MVS (OPSMVS)
• Incident analysis, troubleshooting, and performance improvements
• Support for system upgrades, maintenance activities, and automation initiatives
• Collaboration with international infrastructure and operations teams

Requirements

• Expertise in Mainframe environments
• Hands‑on expertise with OPS/MVS, CA OPSMVS, or CA OPS/MVS
• Strong knowledge of REXX scripting
• Good knowledge of z/OS
• Proven capability in Mainframe Operations, Systems Programming, or Mainframe Engineering
• Strong problem‑solving skills
• Good English communication skills

Project Details

• Freelance contract
• Remote working available
• Long‑term engagement
• Immediate or short‑notice availability is a plus

Job Title: Mainframe Specialist (REXX) (M,W,D)

Location: Kraków, Poland

Job Type: Contract