Ensono

Senior z/OS Systems Programmer

Ensono
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3 days ago
Hyderābād, IndiaSenior

Responsibilities

  • Design, develop, and improve core digital platform services on z/OS.
  • Maintain and advance z/OS operating system environments and core subsystems.
  • Monitor and optimize Parallel Sysplex and Coupling Facility configurations for high availability.
  • Plan and execute SMP/E-based software installations, maintenance, and complex z/OS upgrades.
  • Build observability into systems, monitor production health, resolve incidents, and perform root-cause analysis.
  • Provide Level 3 support for mainframe operating system infrastructure and implement permanent solutions.
  • Apply automated testing, deployment, and software engineering practices to platform services.
  • Make technical decisions, develop architecture and system design proposals, and advise stakeholders and technical leadership.
  • Mentor junior engineers and contribute through code reviews, technical presentations, and internal engineering communities.
  • Collaborate with global operational teams and specialized mainframe engineering groups.

Requirements

  • 10+ years of experience in z/OS systems programming or a similar senior engineering role.
  • Deep expertise in z/OS operating system architecture, design, implementation, core components, and subsystems.
  • Comprehensive experience with Geographically Dispersed Parallel Sysplex operations and Coupling Facility management.
  • Hands-on expertise with SMP/E packaging, installation, maintenance, and z/OS system upgrades; experience through z/OS 3.1 is preferred.
  • Proficiency in REXX, TSO/ISPF, JCL, and other system programming languages; Assembler experience is a plus.
  • Strong knowledge of z/OS performance tuning, system utilities, monitoring, problem determination, and IBM and non-IBM system management tools.
  • Proven Level 3 mainframe infrastructure support experience.
  • Ability to write system design and architecture documents and guide technical changes through production.
  • Strong communication and presentation skills, with fluent written and spoken English required; German is a plus.
  • Ability to work independently, make long-term architectural decisions, identify improvements, and mentor colleagues.

Benefits

  • UK shift schedule.
  • Equal opportunity employment and recruitment accommodations for candidates with disabilities.
  • Global collaboration with teams across locations including Switzerland and the USA.

Tech Stack

AWSAzureGoogle CloudIBM DB2

Categories

Ensono

About Ensono

1,001-5,000 employees
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