Senior Mainframe Developer

  •  Reference Number: 28252
  •  Posted: 10 sierpnia 2026
  •  Form of employment: Kontrakt
  •  Apply by: 10 września 2026

Senior Mainframe Developer

Location: Remote
Start Date: ASAP / Within 1 Month / Flexible

About the Role

Join a team supporting global Trading & Supply operations, focusing on system reliability, automation, modernization, and continuous improvement across business-critical platforms.

Responsibilities

  • Develop and maintain mainframe applications using COBOL, CICS, IMS, JCL, and DB2.
  • Support MQ integrations and middleware solutions.
  • Perform DB2 administration, tuning, and utility management.
  • Participate in migration, upgrade, and modernization initiatives.
  • Create automation solutions using REXX, Python, and z/OSMF workflows.
  • Troubleshoot production issues and collaborate with cross-functional teams.

Requirements

  • Experience with CICS, IMS, and/or MQ integration.
  • Knowledge of DB2 tools (IBM, CA, BMC).
  • Experience with REXX, Python, or z/OSMF workflows.
  • Participation in migration or upgrade projects.
  • Strong analytical and problem-solving skills.

What We Offer

  • Fully remote work
  • Medicover healthcare
  • Multisport card
  • Access to an e-learning platform
  • Group life insurance

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Experis to światowy lider rekrutacji specjalistów i kadry zarządzającej w kluczowych obszarach IT. Z nami znajdziesz konkurencyjne oferty zatrudnienia oraz ciekawe projekty IT skierowane zarówno do ekspertów z wieloletnim doświadczeniem, jak i osób, które dopiero zaczynają swoją przygodę w branży IT.

Warszawa, Mazowieckie
Agencja zatrudnienia – nr certyfikatu 412