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Freelance Mainframe Applications Developer Jobs in New York

Mainframe Developer

Morristown, NJ · On-site

$50.50 - $64.75/hr

NAVA Software solutions is looking for a Sr. Mainframe Engineer Details: Role: Sr. Mainframe ... Be responsible for building Mainframe applications Qualifications: * 5 - 8 years of relevant ...

Develop and maintain mainframe applications * Collaborate with cross-functional teams for application development * Ensure timely delivery of project requirements Requirements * 10+ years of ...

Position Summary The Programmer for Mainframe Systems will support, enhance, and maintain mission‑critical applications that underpin the MNR Crew Management System (CMS). This role focuses on ...

Mainframe Developer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

Mainframe Developer Work Location: Jersey City, NJ Duration: Long Term * 8+ years of experience in designing and developing Mainframe applications * Experience in COBOL (Modify existing programs to ...

Mainframe / COBOL Developer

New York, NY · On-site

$53.50 - $69/hr

Minimum of five (7) years of recent experience developing applications using Cobol for CICS and ... Strong experience developing in Mainframe environment resolving complex and conflicting design ...

Mainframe Engineer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

The Purpose As a Senior Mainframe Software Engineer, you will quickly develop a deep understanding of our mainframe ecosystem--including core applications, data flows, integrations, and ...

Mainframe Developer - Remote

New York, NY · Remote

$53.50 - $69/hr

COBOL Developer - Remote Role Type: Contractor Location: Remote Role Overview We are seeking ... Design and review test cases and scenarios representing real-world COBOL and mainframe applications.

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Mainframe Modernization Developer

Manhattan, NY • On-site

$54 - $69.50/hr

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Job description

Title:  Mainframe Modernization Developer

Contract: Ongoing contract

Location: New York, NY OR Pittsburgh, PA

 

Description
About the Position / Current Initiatives: We are seeking experienced Mainframe Modernization Developers and Architects 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.

Must Haves:

  • 10+ years of experience within IBM mainframe environments
  • Strong hands-on experience with COBOL, CICS, DB2, JCL, and z/OS
  • Experience with Java and/or Python alongside mainframe technologies
  • Experience supporting enterprise financial services, banking, payment processing, or cash management systems
  • Hands-on experience with mainframe modernization, transformation, or optimization initiatives
  • Experience with at least one of the following:
    • Migrating or modernizing legacy/mainframe applications or languages
    • Connecting mainframe systems to non-mainframe environments through APIs
    • Optimizing or modernizing existing mainframe applications
    • Using Java and/or Python to integrate with or extend mainframe applications
  • Experience with 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 with the ability to clearly explain current/recent projects and work directly with enterprise stakeholders and engineering teams

Nice to Haves:

  • Event-driven architecture or messaging integration
  • MQ, Kafka, or enterprise messaging technologies
  • CI/CD or DevOps concepts within mainframe environments
  • Automation and modernization tooling
  • Java or distributed systems integration experience
  • Cloud integration exposure
  • Experience modernizing legacy workflows and enterprise applications