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Senior Mainframe Developer Jobs in New Jersey (NOW HIRING)

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 ...

NAVA Software Solutions

Mainframe Developer

Morristown, NJ · On-site

$50.50 - $64.75/hr

Role: Sr. Mainframe Engineer Location: Morris Plains, NJ , Memphis TN, Somerset NJ, Austin TX, St. Louis MO, Morristown NJ Remote to start - Hybrid from Nov onwards Duration: 6-12 months What You ...

HCL Global Systems Inc

Sr. Cobol Developer

Trenton, NJ · On-site

HCL Global Systems Inc is seeking a Senior Mainframe Developer / COBOL Senior Consultant to evaluate existing systems and user needs. The role involves analyzing, designing, recommending, and ...

Galent

Senior Mainframe Developer

Jersey City, NJ · On-site

Mainframe Developer Location: Wilmington, DE OR Jersey City, NJ (Onsite) Job Details: Contract Must be really strong profile Analytically as they are converting Mainframe tech to Java tech Please ...

Broadcom

Senior Mainframe DevOps Architect

Princeton, NJ

$135K - $184K/yr

About the Role We are seeking a Senior Mainframe DevOps Architect to lead solution design and own end-to-end architecture for enterprise customers-translating complex business requirements into ...

DEW Softech Inc

Sr Cobol Developer

Trenton, NJ · On-site

$50 - $65/hr

Senior Mainframe Developer / COBOL Senior Consultant Location: Trenton, NJ (Onsite) Duration : Contract Interview Type: In person Job Summary Candidates should have strong background in Cobol, ADABAS ...

Navtech, Inc.

Mainframe Developer

Jersey City, NJ · On-site

$53.75 - $69/hr

... a senior level programmer with the ability to design, develop and tests within the mainframe environment (COBOL, CICS, JCL and DB2 Must have experience on resolving production job abends and ...

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 ...

Zencon Group Inc.

Lead Mainframe Developer

Jersey City, NJ · On-site

$53.75 - $69/hr

Zencon Group Inc. is seeking an experienced Senior Application Manager to oversee the implementation and management of large-scale mainframe systems within the financial services industry. This role ...

Monitise

Mainframe Sr. Advisor

Berkeley Heights, NJ · On-site

$121K - $193K/yr

Job Title Mainframe Sr. Advisor About your role: At Fiserv, we are dedicated to transforming ... As a Software Development Engineering - Sr Advisor I, you will play a critical role in leading the ...

Hired By Matrix

Mainframe Engineer

Livingston, NJ · On-site

$53.50 - $68.75/hr

Minimum of 10 years of experience as a senior z/OS System Programmer. * Significant (7 or more years) systems engineering mainframe support. Qualifications Additional Information All your information ...

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How much do senior mainframe developer jobs pay per hour?

As of Sep 4, 2026, the average hourly pay for senior mainframe developer in New Jersey is $58.53, according to ZipRecruiter salary data. Most workers in this role earn between $54.90 and $63.94 per hour, depending on experience, location, and employer.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What are the most commonly searched types of Mainframe Developer jobs in New Jersey?

The most popular types of Mainframe Developer jobs in New Jersey are:

What are popular job titles related to Senior Mainframe Developer jobs in New Jersey?

For Senior Mainframe Developer jobs in New Jersey, the most frequently searched job titles are:

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Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in New Jersey as of August 2026, with employment types broken down into 100% Contract. Highlights an 100% In-person job distribution, with an average salary of $121,743 per year, or $58.5 per hour.

Sr. Mainframe Developer -Multiple locations

NAVA Software Solutions

Berkeley Heights, NJ • On-site

$51.25 - $65.75/hr

Full-time

Re-posted 20 days ago

Job description

NAVA Software solutions is looking for a Sr. Mainframe Developer
Details:
Sr. Mainframe Developer
Duration: 6-12 months
Location: Milwaukee, WI, Lincoln, NE, Omaha, NE, Alpharetta, GA, Berkeley Heights, NJ, Dallas, TX, Atlanta, GA, or Frisco, TX (100% Onsite)
Skills: iSeries, Mainframe, COBOL, GIT, TDD
Responsibilities:
  • Play a key role in developing industry leading software
  • Develop and test complex technical and architectural solutions that support Bank Solution product strategies and address the market needs of the client
  • Define & complete enhancements to financial software

Required:
  • Minimum 6+ years of relevant experience in application development.
  • Experience with iSeries, Unisys, and/or other mainframe technologies.
  • Experience with mainframe development languages such as Cobol.
  • Experienced with source management tools including GIT or similar tools.
  • Agile and/or DevOps experience.
  • Knowledgeable in industry standard software design patterns, development, data modelling, and SOLID principles.
  • Knowledgeable in test driven development (TDD) and automated functional testing including tools like UFT, Postman, and Selenium.
  • The ability to clearly communicate complex technical specifications, and the motivation to achieve best-in-class results.

Desired: Financial industry interest and experience is beneficial.
Education: Associate's degree in Computer Programming or related discipline is required, but a Bachelor's degree in IT or a related discipline is preferred.
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About NAVA Software Solutions

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NAVA is a strategic partner for companies seeking to develop or customize software and products. Our team of experts leverages cutting-edge technology and deep industry knowledge to provide customized solutions that drive business success. Whether you're looking to improve your operations, increase efficiency, or bring a new product to market, NAVA has the expertise and resources to help you achieve your goals. Trust us to be your partner in software and product development.

Industry

It services

Company size

51 - 200 Employees

Headquarters location

Rocky Hill, CT, US

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