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Senior Mainframe Developer Jobs in Mount Holly, NJ

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 ...

Broadcom

Senior Mainframe DevOps Architect

Princeton, NJ · On-site

$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 ...

Accenture

Mainframe Specialist

Philadelphia, PA

$70K - $196K/yr

Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ... Collaborate with senior leadership to secure executive sponsorship and organizational buy-in for ...

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Senior Mainframe Developer information

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How much do senior mainframe developer jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for senior mainframe developer in Mount Holly, NJ is $58.47, according to ZipRecruiter salary data. Most workers in this role earn between $54.86 and $63.89 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 Mount Holly, NJ?

The most popular types of Mainframe Developer jobs in Mount Holly, NJ are:

What cities near Mount Holly, NJ are hiring for Senior Mainframe Developer jobs?

Cities near Mount Holly, NJ with the most Senior Mainframe Developer job openings:

Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Mount Holly, NJ as of August 2026, with employment types broken down into 83% Full Time, 5% Part Time, and 12% Contract. Highlights an 82% Physical, 5% Hybrid, and 13% Remote job distribution, with an average salary of $121,615 per year, or $58.5 per hour.

Senior Mainframe Developer / COBOL Senior Consultant

Amtex Enterprises Inc

Trenton, NJ • On-site

$83 - $110/hr

Other

Posted 18 days ago

Job description

Job Title : Senior Mainframe Developer / COBOL Senior Consultant
Location: Onsite in Trenton, NJ 08608
Duration: 5+ Months
Rate: $60-70/hr on W2 or $70-80/hr on C2C or 1099- MAX

Local Candidates only. Candidates should have strong background in Cobol, ADABAS, and Natural. strong in JCL as well.

Job Description: We are looking for a Senior Mainframe Developer / COBOL Senior Consultant to evaluate existing systems and user needs in order to analyze, design, recommend, and implement information system changes. This position will be a contract role and is onsite in Trenton, NJ.

What You’ll Do
  • Participate in development efforts supporting the project involving multiple legacy mainframe applications
  • Analyze existing legacy systems and provide code walkthroughs, logic analysis, and technical documentation to ITS development teams
  • Design, develop, modify, test, and maintain COBOL and NATURAL programs, along with associated JCL jobs, based on functional specifications and enhancement requests
  • Perform ongoing maintenance and enhancements to batch and online mainframe applications
  • Troubleshoot and resolve production issues, job failures, and system abends, including root cause analysis and corrective actions
  • Analyze ADABAS database structures, files, and access methods to support application development and system integration
  • Develop and maintain data feeds, file layouts, and interface processes between legacy systems and modernized ITS components
  • Participate in system design reviews, technical planning sessions, and code reviews
  • Produce and maintain technical documentation, including program specifications, data definitions, job flows, and system architecture documentation
  • Support system testing, integration testing, and user acceptance testing UAT
  • Implement best practices for mainframe development, including coding standards, version control, and change management
  • Assist with performance tuning and optimization of batch jobs, database access, and program execution
  • Provide production support for mission critical applications and collaborate closely with analysts, architects, and development teams
What You’ll Need

Required:

  • Advanced experience with COBOL programming in enterprise mainframe environments
  • Strong expertise in JCL development and job scheduling
  • Extensive experience with NATURAL programming
  • Working knowledge of ADABAS database architecture and file structures
  • Experience analyzing and maintaining large legacy mainframe codebases
  • Strong troubleshooting and debugging skills for batch and online applications
  • Experience with system integration, data interfaces, and file transfer processes
  • Proficiency with mainframe utilities, debugging tools, and job monitoring tools
  • Strong documentation and communication skills
  • Ability to work independently while coordinating with multiple technical teams

Preferred:

  • Experience supporting taxation or government revenue systems
  • Familiarity with CICS and online transaction processing environments
  • Experience with data migration or modernization projects involving legacy mainframe applications
  • Knowledge of mainframe security, scheduling systems, and source code management tools
  • Experience working within large scale enterprise or government IT environments
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