Mainframe Modernization Developer

Location: Hybrid 4x week onsite 

Role: Mainframe Modernization Developer 

Duration: Contract 

Position Summary: We are seeking experienced Mainframe Modernization Developers to support a large-scale enterprise modernization initiative within a major financial services environment. This role will focus on modernizing and evolving critical mainframe applications while improving integration with modern distributed systems and enterprise platforms. The position is ideal for professionals with deep IBM mainframe expertise and experience in modernizing legacy applications, particularly within regulated enterprise environments.

What the right candidate will enjoy:

• Working on large-scale enterprise modernization initiatives within a highly complex banking environment
• Helping modernize mission-critical systems that support high-volume transactional platforms
• Bridging legacy mainframe systems with modern distributed and cloud-based architectures
• Supporting long-term transformation efforts rather than pure production support work
• Exposure to enterprise modernization strategy, API enablement, integration architecture, and modernization tooling
• Collaborating with modernization architects, engineering leaders, and enterprise technology teams
• Opportunity to contribute to modernization initiatives involving automation, scalability, interoperability, and application transformation

What type of experience does the right candidate have:

• 8+ years of experience within IBM mainframe environments
• Strong hands-on experience with COBOL, CICS, DB2, JCL, and z/OS
• Experience supporting enterprise financial services, banking, payment processing, or cash management systems
• Experience participating in mainframe modernization or transformation initiatives
• Exposure to API enablement, distributed systems integration, or hybrid architecture environments
• Experience integrating mainframe applications with modern applications, middleware, or enterprise platforms
• Understanding of enterprise application architecture and modernization strategies
• Experience working within large-scale, highly regulated enterprise environments
• Strong communication skills and ability to work directly with enterprise stakeholders and engineering teams

What the responsibilities are of the right candidate:

• Support modernization efforts across enterprise mainframe applications and platforms
• Enhance interoperability between legacy systems and modern distributed applications
• Participate in modernization strategy, architecture discussions, and implementation efforts
• Design, develop, and support enhancements to critical enterprise mainframe systems
• Assist with API enablement and integration initiatives
• Support modernization of legacy workflows, interfaces, and operational processes
• Collaborate with enterprise architects, modernization teams, and business stakeholders
• Improve scalability, maintainability, and operational efficiency of core enterprise systems
• Support enterprise transformation initiatives involving modernization, automation, and integration
• Contribute to long-term modernization roadmaps and enterprise technology evolution initiatives