Mainframe Technical Services Consultant - 26-01055

NavitasPartnersNew York, NY
5dOnsite

About The Position

We are seeking a highly experienced Mainframe Technical Services Consultant to provide hands-on technical expertise for the maintenance, enhancement, and support of enterprise mainframe applications . This role supports multiple system teams responsible for application enhancements, implementation of complex business requirements, and ensuring stable operations across integrated mainframe platforms. The consultant will be responsible for end-to-end SDLC execution , including analysis, coding, testing, and implementation. The ideal candidate brings strong analytical skills, deep mainframe programming expertise, and proven experience working in large, highly integrated environments.

Requirements

  • Core Mainframe Programming
  • Advanced COBOL (z/OS) programming experience
  • Strong JCL expertise for batch processing, optimization, and troubleshooting
  • Proficiency with TSO/ISPF REXX scripting for automation and utilities
  • DB2 for z/OS
  • Strong SQL skills, stored procedures, and performance tuning
  • CICS experience for online transaction processing (module-dependent)
  • Extensive experience across the full SDLC in mainframe environments
  • Expertise in: Unit Testing System & Integration Testing User Acceptance Testing (UAT)
  • Experience with release planning, deployments, and documentation
  • Ability to comply with enterprise development and quality standards
  • Strong cross-system dependency and impact analysis skills
  • Proven ability to troubleshoot: Batch failures Job abends Data integrity issues System integrations
  • Experience supporting large-scale, mission-critical systems

Nice To Haves

  • Prior experience supporting public sector or government systems
  • Familiarity with civil service workflows, certification processes, or list management systems
  • Experience working in highly regulated or compliance-driven environments
  • Knowledge of Assembler (preferred but not required)

Responsibilities

  • Analyze, design, code, test, and implement enhancements for critical mainframe processes
  • Develop new system features supporting list management, certifications, and classification workflows
  • Implement enhancements for multiple business categories and operational modules
  • Review existing system architecture and recommend improvements to performance and usability
  • Apply configuration changes and modify custom code as required
  • Perform detailed impact analysis to identify dependencies and downstream effects
  • Validate functional updates and assess development risks
  • Participate in daily, weekly, and ad-hoc project meetings
  • Provide ongoing production support and troubleshooting
  • Partner with team leads to define priorities, sprint goals, and delivery milestones
  • Align development efforts with organizational product roadmaps and strategic objectives
  • Participate in weekly status reviews and progress reporting
  • Support full testing lifecycle including unit, integration, and UAT testing
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