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Mainframes Developer Jobs in New Jersey (NOW HIRING)

Hired By Matrix

Mainframe Engineer

Livingston, NJ · On-site

$53.50 - $68.75/hr

Company Description This position is a critical member of the Mainframe Engineering team. The primary function is supporting the z/OS platform that hosts 6 LPARs, 10 DB2 subsystems, 11 CICS Regions ...

Hired By Matrix

Mainframe Engineer

Livingston, NJ · On-site

$53.50 - $68.75/hr

This position is a critical member of the Mainframe Engineering team. The primary function is supporting the z/OS platform that hosts 6 LPARs, 10 DB2 subsystems, 11 CICS Regions across 3 different ...

1 point system

Mainframe Engineer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

The Brokerage Record Technology Tax Engineering team within Fidelity Wealth Technology is looking for a passionate and experienced Senior Mainframe Software Engineer to help design, enhance, and ...

Hirekeyz Inc

Mainframe Engineer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

Mainframe Engineer Location : Jersey City, NJ Job Type: W-2/Full Time Mandatory Skills - Cobol , DB2 , JCL . the candidate needs to be really good in DB2 as it involves a lot of DB work. Sector:

S2SSoft

Mainframe Developer

Edison, NJ · On-site

$49.75 - $63.75/hr

Mainframe Developer Location Edison, NJ (3 days onsite) - Hybrid Contract Life insurance domain is needed for all roles Mainframe-COBOL JD : Key Responsibilities: 1. Own end-to-end solution design ...

Scout ET

Mainframe Programmer

Pennington, NJ · On-site

Mainframe Programmer Location: Pennington, NJ Duration: 1 year Type: Contract jobs Estimated Duration: Long Term Contract Interview: Phone following to in-person. Onsite: On location at the Client ...

Palnar

Sr. Mainframe Developer

Jersey City, NJ · On-site

$53.75 - $69/hr

Job Role: Sr. Mainframe Developer Location: Jersey City, NJ Duration Long Term * Minimum of 10 years' experience with COBOL, DB2, Command-Level CICS, JCL, Batch and TSO/ISPF. * Similar experience ...

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Mainframes Developer information

What does a Mainframes Developer do?

A Mainframes Developer designs, codes, tests, and maintains applications running on mainframe systems, primarily using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of legacy systems, often working with tools such as JCL and DB2, and may collaborate with system administrators and analysts to support business operations.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the continued use of mainframe technology for critical applications. However, the number of new positions is gradually decreasing as organizations modernize their IT infrastructure.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

What are popular job titles related to Mainframes Developer jobs in New Jersey? For Mainframes Developer jobs in New Jersey, the most frequently searched job titles are:
What job categories do people searching Mainframes Developer jobs in New Jersey look for? The top searched job categories for Mainframes Developer jobs in New Jersey are:
What cities in New Jersey are hiring for Mainframes Developer jobs? Cities in New Jersey with the most Mainframes Developer job openings:
Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in New Jersey as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Mainframe Developer AI/GenAI Exp

Envision Technology Solutions

Berkeley Heights, NJ • On-site

$51.25 - $65.75/hr

Other

Re-posted yesterday

Job description

Job Title: Mainframe Developer AI/GenAI Exp

Location: Berkeley Heights, NJ-Onsite

Job Type: Long term Contract

Roles and Responsibilities

  • Design, develop, maintain, and support IBM Mainframe applications using COBOL, JCL, CICS, DB2, VSAM, and related technologies.

  • Analyze existing mainframe applications and identify modernization opportunities using AI/GenAI solutions.

  • Develop AI-powered tools and automation solutions for code analysis, documentation generation, testing, and application modernization.

  • Integrate mainframe systems with cloud platforms, APIs, and AI/ML services.

  • Collaborate with business stakeholders, architects, and development teams to define technical solutions and modernization strategies.

  • Perform impact analysis, code reviews, debugging, and performance tuning of mainframe applications.

  • Develop and maintain technical documentation, process flows, and system specifications.

  • Support application migration, refactoring, and transformation initiatives.

  • Implement security, compliance, and governance standards across mainframe and AI solutions.

  • Participate in Agile development processes, sprint planning, and technical design discussions.

  • Evaluate emerging AI/GenAI technologies and recommend innovative use cases for mainframe environments.

Required Skills:-

  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.

  • 10+ years of hands-on experience in IBM Mainframe development.

  • Strong experience with COBOL, JCL, CICS, DB2, VSAM, IMS, and TSO/ISPF.

  • Experience with software development lifecycle (SDLC) and Agile methodologies.

  • Knowledge of REST APIs, microservices, and system integration concepts.

  • Understanding of AI/ML fundamentals and Generative AI technologies.

  • Experience working with Large Language Models (LLMs) and AI-assisted development tools.

  • Strong analytical, problem-solving, and communication skills.

Preferred Skills:-

  • Experience with IBM Watsonx, OpenAI, Azure OpenAI, or similar AI platforms.

  • Exposure to mainframe modernization programs and cloud migration initiatives.

  • Experience with Python, Java, or other modern programming languages.

  • Familiarity with DevOps, CI/CD pipelines, Git, Jenkins, and automation tools.

  • Knowledge of prompt engineering, retrieval-augmented generation (RAG), and AI governance.

  • Experience integrating AI solutions with enterprise applications and legacy systems.

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