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Mainframe Production Engineer

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Job Description - Mainframe Production Engineer

Location:Bucharest, Romania

Work Model: Hybrid (2 days/week on-site)

Position Type: Full-time/ Freelance SRL or PFA

Role Overview

We are looking for a skilled Mainframe Production Engineer to join our infrastructure team. You will be responsible for ensuring the stability, performance, and reliability of our mission-critical production environments. The ideal candidate has deep technical expertise in z/OS and is proficient in managing batch workloads, transaction environments, and release management tools.

Key Responsibilities

  • Production Operations: Provide end-to-end support for the z/OS environment, ensuring high availability and system health.
  • Workload Automation: Design, monitor, and troubleshoot complex batch processing schedules using CA7.
  • Middleware & Database Support: Manage and support CICS regions and DB2 interfaces to ensure seamless transactional processing.
  • Change & Release Management: Oversee the migration and deployment of software versions using ChangeMan and Endevor, ensuring compliance with internal governance.
  • Incident Management: Perform rapid root-cause analysis for production failures (abends) and implement permanent fixes.
  • Performance Tuning: Monitor system resources and job performance to identify bottlenecks and optimize the production environment.
  • Team Collaboration: Work in a hybrid model, participating in on-site collaboration 2 days per week to align with development and security teams.

Technical Requirements

  • Platform Expertise: Solid experience in z/OS systems operations and engineering.
  • Scheduling Tools: Advanced knowledge of CA7 (job definition, dependencies, and troubleshooting).
  • Online & Data Systems: Hands-on experience with CICS administration and DB2 for Mainframe.
  • SCM Tools: Proficiency in ChangeMan and/or Endevor for source code and release management.
  • Core Skills: Strong command of JCL, TSO/ISPF, and standard Mainframe utilities (IDCAMS, IEFBR14, etc.).

Preferred Qualifications

  • Experience with Mainframe security protocols (e.g., RACF, ACF2).
  • Scripting knowledge in REXX or CLIST for automation of routine tasks.
  • Familiarity with monitoring tools (e.g., Mainview, Omegamon).
  • Understanding of ITIL processes (Incident, Problem, and Change Management).

What We Offer

  • Hybrid Flexibility: A balanced work-life approach with 3 days remote and 2 days in-office.
  • Professional Growth: Opportunity to work on large-scale, enterprise-level Mainframe systems.
  • Comprehensive Benefits: Competitive salary, private medical insurance, and performance-based bonuses.
  • Modern Culture: A collaborative environment that values technical excellence and proactive problem-solving.
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