Senior Mainframe Modernization Lead (z/OS, Endevor, USS)

Diverse CG Sp. z o.o. Sp.k.; Warszawa, Łódź, Gdynia; On-site; PLN 120,000 - 150,000; Full time

Benefits offered by this job

Private medical care

Co‑financing for the sports card

Constant support of dedicated consultant

Job summary

Diverse CG Sp. z o.o. Sp.k. in Warsaw is looking for a Senior Mainframe Specialist to analyze and optimize mainframe software usage. Candidates should have a minimum of 6 years of experience specifically with IBM z/OS environments and Endevor configuration. Responsibilities include collaborating with project teams, planning migrations, and ensuring smooth communication between systems. The role requires excellent problem-solving skills and fluency in English. Benefits include private medical care and sports card co-financing.

Qualifications

• Minimum 6 years of professional experience working with IBM z/OS environments.
• Strong hands‑on knowledge of Endevor configuration and administration.
• Experience with cross‑platform communication and integrations.

Responsibilities

• Analyse the current usage of mainframe software and technologies across the organisation.
• Collaborate with project teams to define, assess, and design replacement solutions.
• Plan and execute migration activities to target solutions.

Skills

IBM z/OS environments

Endevor configuration

Cross-platform communication

Mainframe Unix System Services (USS)

Analytical and problem-solving skills

English (Fluent)

Tools

Broadcom/CA tools

CICS

IMS

Job description

Diverse CG Sp. z o.o. Sp.k. in Warsaw is looking for a Senior Mainframe Specialist to analyze and optimize mainframe software usage. Candidates should have a minimum of 6 years of experience specifically with IBM z/OS environments and Endevor configuration. Responsibilities include collaborating with project teams, planning migrations, and ensuring smooth communication between systems. The role requires excellent problem-solving skills and fluency in English. Benefits include private medical care and sports card co-financing.