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Mainframe Development Jobs in New York (NOW HIRING)

Damco Solutions

Mainframe Architect

Jersey City, NJ · On-site

Responsibilities : • Experience in application development in legacy technologies like COBOL ... of existing mainframe workloads (COBOL, JCL, DB2, VSAM, IMS, CICS) • Define modernization ...

Purple Drive

Mainframe Developer with Java

Jersey City, NJ · On-site

$51.25 - $65.75/hr

... development lifecycle. Key Responsibilities Analyze, design, develop, and maintain Mainframe ... applications using COBOL, JCL, CICS, DB2, and VSAM. Develop and support Java-based applications ...

Sonsoft Inc

Mainframe Programmer

Florham Park, NJ · On-site

Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development ... large-scale mainframe computer system. * May require a bachelor's degree and 6-8 years of ...

Sonsoft Inc

Mainframe Programmer

Florham Park, NJ

Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development ... large-scale mainframe computer system. * May require a bachelor's degree and 6-8 years of ...

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Mainframe Development information

What is the difference between Mainframe Development vs Mainframe Testing?

AspectMainframe DevelopmentMainframe Testing
Primary FocusDesigning, coding, and maintaining mainframe applicationsVerifying and validating mainframe applications for bugs and performance
Required SkillsCOBOL, JCL, DB2, CICSTesting tools, scripting, debugging, knowledge of mainframe environments
Work EnvironmentDevelopment teams, coding in mainframe environmentsQuality assurance teams, testing labs, mainframe systems
CertificationsCOBOL certifications, IBM mainframe certificationsISTQB, mainframe testing certifications

While Mainframe Development involves creating and maintaining mainframe applications, Mainframe Testing focuses on ensuring those applications work correctly and efficiently. Both roles require knowledge of mainframe environments and related skills, but they serve different stages in the software lifecycle.

Is mainframe development a good career?

Mainframe development is a stable career with high demand in industries like finance and government that rely on legacy systems. It requires knowledge of languages such as COBOL and tools like JCL, and often offers competitive salaries and job security due to the specialized skills involved.

Is mainframe development still in demand?

Mainframe development remains in demand in industries such as finance, government, and healthcare that rely on legacy systems for critical operations. Skilled mainframe developers with knowledge of COBOL, JCL, and mainframe environments are sought after to maintain and modernize these systems, ensuring their continued relevance in enterprise IT infrastructure.

What does a mainframe developer do?

A mainframe developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They work in environments that require high reliability and security, and typically collaborate with system administrators and analysts to ensure smooth operation of enterprise systems.

What cities in New York are hiring for Mainframe Development jobs?

Cities in New York with the most Mainframe Development job openings:

Mainframe Development jobs near you
Infographic showing various Mainframe Development job openings in New York as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 16% Part Time, and 2% Contract. Highlights an 90% Physical, 3% Hybrid, and 7% Remote job distribution.

Mainframe Application Developer - Modernization

Manhattan, NY • On-site

Computer Task Group, Inc
Professional, Scientific, and Technical Services • 1 - 5K employees
Learn more about Computer Task Group, Incexternal

Full-time

Posted 11 days ago

Job description

Overview

CTG is seeking to fill a Mainframe Application Developer - Modernization position for our client.

Location: Onsite 4 days per week in either New York, NY or Pittsburgh, PA
Duration: 6 months

Duties:

  • Develop, enhance, maintain, and modernize mainframe applications supporting critical business functions.

  • Analyze existing mainframe applications and identify opportunities for modernization, optimization, and improved performance.

  • Support application modernization initiatives, including language migration and integration with non-mainframe environments.

  • Develop and maintain applications using COBOL, CICS, and DB2.

  • Design and implement APIs and integration solutions connecting mainframe applications with distributed and cloud-based environments.

  • Collaborate with cross-functional teams, architects, business stakeholders, and technology teams to define and implement modernization solutions.

  • Troubleshoot application issues, perform root-cause analysis, and implement sustainable solutions.

  • Contribute to the adoption of modern technologies such as Java and/or Python alongside existing mainframe technologies.

  • Participate in code reviews, testing, deployment, and ongoing application support.

  • Ensure solutions meet organizational standards for quality, security, performance, and reliability.

Skills:

  • Strong mainframe application development skills.

  • Proficiency with COBOL, CICS, and DB2.

  • Experience with application modernization and transformation initiatives.

  • Knowledge of APIs and integration between mainframe and non-mainframe environments.

  • Experience with application optimization and performance improvement.

  • Exposure to or experience with Java and/or Python in conjunction with mainframe technologies.

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

  • Excellent verbal and written communication skills.

  • Ability to work effectively with technical and business stakeholders.

Experience:

  • 10+ years of industry experience.

  • Extensive experience developing and supporting mainframe applications.

  • Demonstrated experience with CICS, COBOL, and DB2.

  • Experience participating in application modernization initiatives, including one or more of the following:

    • Language migration.

    • Mainframe integration with non-mainframe environments using APIs.

    • Application optimization.

    • Use of Java and/or Python with mainframe technologies.

  • Experience in the financial services and/or cash management industry strongly preferred.

  • Experience working in collaborative, enterprise technology environments.

Education:

  • Bachelor's degree in Computer Science, Information Technology, or a related field preferred, or equivalent combination of education and experience.

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee based recruitment services for this role.

To Apply:
To be considered, please apply directly to this requisition using the link provided. Kindly forward this to any other interested parties. Thank you!

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About Computer Task Group

Sourced by ZipRecruiter

We know that achieving our mission begins and ends with our people—and by people we mean you. Regardless of individual roles or responsibilities, regardless of industry or subject matter expertise, our lives happen in relation to other people—our colleagues, clients, and partners. CTG cultivates a workplace that attracts and develops the best people. Being Great Place to Work-CertifiedTM not only supports our Vision but also validates the rewarding workplace culture that has made CTG a leading IT and digital solutions and services company for more than 55 years.

Industry

Professional, scientific, and technical services

Company size

1,001 - 5,000 Employees

Headquarters location

Buffalo, NY, US

Social media

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