Duration: 5 Months
Location: Onsite – New York, NY
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.
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
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
Knowledge of Assembler (preferred but not required)
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
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