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Senior Mainframe Developer Jobs (NOW HIRING)

enexusglobal

Sr Mainframe Developer

Wilmington, DE · On-site

Job title: Sr Mainframe Developer Role is Hybrid (3 days/wk) Client address: 880 Powder Mill Rd Wilmington, DE 19803 Years of experience required: 8+ · Develops and implements solutions that address ...

JS Consulting

Sr. Mainframe Developer

Woodlawn, MD · On-site

$51 - $65.50/hr

Job Title- Sr. Mainframe Developer Project Location - Woodlawn, MD (5 days per week onsite) Duration- 6+ months contract Skills: Strong experience with IBM z/OS (OS/390/MVS) environment developing ...

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 ...

Judge Group, Inc.

Sr Mainframe Developer

Wilmington, DE · On-site

$50.50/hr

Our client is currently seeking a Sr Mainframe Developer Years of experience required: 8+ Develops and implements solutions that address complex business challenges, enhancing the ability to make ...

Judge Group, Inc.

Sr Mainframe Developer

Wilmington, DE · On-site

$50.50/hr

Our client is currently seeking a Sr Mainframe Developer Develops and implements solutions that address complex business challenges, enhancing the ability to make data-driven decisions and improving ...

Citigroup, Inc.

Senior Mainframe Developer

Jacksonville, FL · On-site

$113K - $170K/yr

The Senior Mainframe Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The ...

Stellar IT Solutions

Mainframe Developer

Saint Louis, MO · On-site

$46.50 - $59.75/hr

Mainframe Developer (Senior - Security Remediation) Location: Remote Duration: 6-12+ Months Contract Role Overview We are seeking experienced Senior Mainframe Engineers with deep expertise in legacy ...

Stellar IT Group

Mainframe Developer

Saint Louis, MO · On-site

$47.75 - $61.25/hr

Mainframe Developer (Senior - Security Remediation) Location: Remote Duration: 6-12+ Months Contract Role Overview We are seeking experienced Senior Mainframe Engineers with deep expertise in legacy ...

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Senior Mainframe Developer information

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How much do senior mainframe developer jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for senior mainframe developer in the United States is $57.65, according to ZipRecruiter salary data. Most workers in this role earn between $54.09 and $62.98 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.
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Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in the United States as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $119,916 per year, or $57.7 per hour.

Sr Mainframe Developer

enexusglobal

Wilmington, DE • On-site

Contractor

Posted 20 days ago

Job description

Job title: Sr Mainframe Developer
Role is Hybrid (3 days/wk)
Client address: 880 Powder Mill Rd Wilmington, DE 19803
Years of experience required: 8+
Job Description:
· Develops and implements solutions that address complex business challenges, enhancing the ability to make data-driven decisions and improving operational efficiency
· Prepares architecture and design documents for complex Banking applications keeping in mind design constraints that translate to coding
· Develops secure and high-quality code that runs in sync with other highly efficient sub systems
· Think out-of-the-box proactively and be creative by challenging conventional approaches and contribute towards operational efficiency
· Troubleshoots problems, works with Product Teams and other stake holders to understand complex Requirements and be able to break them down to design/development.
Job Requirements:
· Candidate should have expertise in COBOL, JCL, VSAM, IMS, CICS & DB2.
· Expertise in CICS Programming including knowledge of CICS Screen Programming is Mandatory
· Experience/Knowledge in building and maintaining new Test regions is preferred.
· Experience coding in MQ Series & IMS DB is Mandatory.
· Experience in Banking Compliance and Regulatory Platform is preferred.
· Must have hands-on coding development experience.
· Experience with version control.
· Ability to communicate effectively with team members and clients and excellent problem-solving skills
Enexus Global logo

About Enexus Global

Sourced by ZipRecruiter

Enexus Global, is a premier onsite/offshore software solutions and services company, headquartered in the Silicon Valley with offices across the United States, India. Some noteworthy achievements include: transforming a bank with efficient business solutions involving the Core Banking System (CBS), creating an E-commerce store for a Retail business giant with the latest security solutions, and building a database designer with a hierarchical system for communicating in a hospital or clinic. These achievements and possibilities emerged because our clients’ trust in our expertise that includes a vast array of technological development services. Our exceptional leaders and engineers work on software applications, web development, mobility solutions, and cloud-based services. Our best practices and progressive work culture has also maneuvered us into R&D of augmented reality. We work closely with our clients to help them successfully build and execute their most critical strategies. Enexus Global has a proven track record of delivering results through its global delivery centers and flexible engagement models for over 450 brands ranging from Fortune 100 to growing companies. Enexus Global provides a variety of services including Enterprise Applications, Mobility, Big Data/BI, Staffing Services, and Cloud Solutions. Our enterprise clientele includes leading companies like eBay, PayPal, DIRECTV, Expedia, Oracle, Cisco, and many more

Industry

Technology, communication and media

Company size

11 - 50 Employees

Headquarters location

Fremont, CA, US

Year founded

2015

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