Ensono

Senior z/OS Systems Programmer

Ensono
Apply
2 months ago
Hyderābād, IndiaSenior

Responsibilities

  • Design, develop, maintain, and improve core z/OS platform services and operating system solutions.
  • Monitor and optimize Parallel Sysplex and Coupling Facility configurations for high availability.
  • Plan and execute z/OS software installations, upgrades, and maintenance using SMP/E.
  • Build observability, monitor production health, resolve incidents, and perform root-cause analysis.
  • Provide Level 3 support for mainframe operating system infrastructure and implement permanent solutions.
  • Make technical decisions, prepare system and architecture documentation, and present solution proposals to stakeholders and leadership.
  • Mentor junior engineers and contribute through code reviews, technical presentations, and internal engineering communities.
  • Collaborate with DB2, CICS, MQ, operational, and global mainframe engineering teams.

Requirements

  • 10+ years of experience in z/OS systems programming or a similar senior engineering role.
  • Expert knowledge of z/OS operating system architecture, design, implementation, 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 complex z/OS 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, system management tools, and problem determination utilities.
  • Experience providing Level 3 support for mainframe operating system infrastructure.
  • Ability to document system and network designs, manage technical changes, and make long-term architectural decisions.
  • Strong written and spoken English is mandatory; German language skills are a plus.
  • Ability to work independently, communicate complex technical decisions, influence engineering practices, and mentor colleagues.

Benefits

  • UK shift schedule.
  • Equal opportunity employment and recruitment accommodations for candidates with disabilities.

Tech Stack

AWSAzureGoogle CloudIBM DB2

Categories

Ensono

About Ensono

1,001-5,000 employees

Ensono provides managed services and consulting for enterprises running mission-critical workloads across mainframe, private, and public clouds. It supports application modernization, cloud migrations, and ongoing operations in AWS, Azure, and Google Cloud through recurring service contracts and advisory projects. Founded in 1969 and headquartered in Downers Grove, Illinois, the company operates globally and is privately held.

Contact me