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Freelance Mainframe Applications Developer Jobs in Edison, NJ

NAVA Software Solutions

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 ...

Saransh Inc

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 ...

Neotecra

Mainframe Application Developer

New York, NY · On-site

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 ...

Neotecra

Mainframe Application Developer

Manhattan, NY · On-site

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 daily ...

Navtech, Inc.

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 ...

1 point system

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 ...

Cynet Systems

Mainframe Developer

Jersey City, NJ · On-site

$50 - $55/hr

We are looking for Mainframe Developer for our client in Jersey City, NJ Job Title: Mainframe ... Work on mainframe applications using COBOL, JCL, CICS, and DB2. * Analyze business requirements and ...

Datum Software, Inc.

Mainframe Developer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

Key Responsibilities Work on mainframe applications using COBOL, JCL, CICS, and DB2. Analyze business requirements and translate them into MText layouts and logic. Debug and resolve production issues ...

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Freelance Mainframe Applications Developer information

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How much do freelance mainframe applications developer jobs pay per hour?

As of Jul 29, 2026, the average hourly pay for freelance mainframe applications developer in Edison, NJ is $50.67, according to ZipRecruiter salary data. Most workers in this role earn between $45.05 and $58.99 per hour, depending on experience, location, and employer.
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Mainframe Developer

Mainframe Developer

K-Tek Resourcing LLC

Jersey City, NJ • On-site

$51.25 - $65.75/hr

Other

Posted 21 days ago

Job description

Job Title: Senior Mainframe Developer 8-12 years of experience only

Location: New York City, NY/ Jersey City, NJ 4 Days onsite role

Role Overview: We are seeking a Senior Mainframe Developer with strong expertise in COBOL, JCL, and Control-M/CCS (or similar scheduling systems) to support critical enterprise applications. The role involves code screening, analysis/scraping, enhancement, and development on legacy mainframe systems, along with participation in modernization and integration efforts.

This individual will play a key role in maintaining high-performance, stable mainframe applications while contributing to system improvements and integration initiatives.

Key Responsibilities

  • Perform code screening, analysis, and scraping of existing mainframe applications to identify dependencies, inefficiencies, and improvement opportunities
  • Design, develop, test, and maintain COBOL-based applications
  • Develop and manage JCL jobs, including batch processing and scheduling workflows
  • Work with CCS / Control-M / enterprise scheduling systems for job automation and monitoring
  • Analyze legacy code and contribute to modernization strategies
  • Collaborate with cross-functional teams to support integration with distributed systems or APIs
  • Troubleshoot production issues, identify root causes, and implement fixes
  • Ensure adherence to coding standards, performance guidelines, and security practices
  • Document technical specifications, code changes, and system workflows
  • Support QA/UAT cycles and deployment activities

Required Skills & Qualifications

  • 8+ years of experience in Mainframe development
  • Strong hands-on experience with:
    • COBOL
    • JCL (Job Control Language)
    • Mainframe utilities (VSAM, DB2, CICS as applicable)
  • Experience with CCS / Control-M / similar job scheduling tools
  • Experience with DB2, CICS transaction processing
  • Proven experience in code analysis, reverse engineering, and refactoring legacy systems
  • Strong debugging and problem-solving skills
  • Familiarity with batch processing and high-volume transaction systems
  • Ability to work independently and in a team-oriented environment

Nice-to-Have Skills

  • Basic understanding of system integration concepts (APIs, middleware, web services)
  • Exposure to mainframe modernization initiatives
  • Familiarity with distributed systems or cloud integration
  • Knowledge of DevOps practices for mainframe environments

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