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Senior Mainframe Developer Jobs (NOW HIRING)

Raas Infotek LLC

Senior Mainframe Developer

Dallas, TX · On-site

Senior Mainframe Developer Location: Dallas, TX (Onsite/Hybrid) Job Type: W2 Experience: 12+ Years We are looking for a highly experienced Senior Mainframe Developer with 12+ years of hands-on ...

New

Galent

Senior mainframe developer

Wilmington, DE · On-site

Job title: Sr Mainframe Developer Role is onsite (5 days/wk) Client Location: Wilmington, DE Years of experience required: 8+ · Develops and implements solutions that address complex business ...

Hirekeyz Inc

Senior Mainframe Developer

Tampa, FL · On-site

Job Title: Senior Mainframe Developer Location : Tampa, FL (5 Days Onsite) Job Type: W-2/Full Time Exp-10 Years Role Overview We are seeking a highly experienced Mainframe Developer with deep ...

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 ...

K-Tek Resourcing LLC

Mainframe Developer

Jersey City, NJ · On-site

$51.25 - $65.75/hr

Senior Mainframe Developer 8-12 years of experience only Location: New York City, NY/ Jersey City, NJ 4 Days onsite role Role Overview: We are seeking a Senior Mainframe Developer with strong ...

Mindlance

Sr. Mainframe Developer

Dallas, TX · On-site

$48.75 - $62.50/hr

Title: Sr. Mainframe Developer Location: Tampa, FL, 33647 or Dallas, TX, 75019 or Jersey City, NJ, 07310 Type: Long Term Contract Position Summary: Responsible for the analysis of project ...

Cnx

Senior Mainframe Developer

Omaha, NE

$71K/yr

Senior Mainframe Developer We're Concentrix. The intelligent transformation partner. Solution-focused. Tech-powered. Intelligence-fueled. The global technology and services leader that powers the ...

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 ...

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How much do senior mainframe developer jobs pay per hour?

As of Jul 16, 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 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 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 Senior Mainframe Developers?

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.
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Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in the United States as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $119,916 per year, or $57.7 per hour.
Senior Mainframe Developer

Senior Mainframe Developer

Raas Infotek LLC

Dallas, TX • On-site

Other

Posted 3 days ago

New

Job description

Job Title: Senior Mainframe Developer
Location: Dallas, TX (Onsite/Hybrid)
Job Type: W2
Experience: 12+ Years

Job Description

We are looking for a highly experienced Senior Mainframe Developer with 12+ years of hands-on experience in designing, developing, maintaining, and supporting enterprise mainframe applications. The ideal candidate should possess strong expertise in COBOL, JCL, DB2, CICS, VSAM, and IBM mainframe technologies, along with experience in application modernization, production support, and Agile development.

Required Skills:
  • 12+ years of experience in IBM Mainframe application development.
  • Strong programming experience with COBOL, JCL, CICS, DB2, VSAM, and TSO/ISPF.
  • Experience with IMS DB/DC is highly preferred.
  • Strong SQL skills with DB2 database design, optimization, and performance tuning.
  • Experience in batch processing, online transaction processing, and job scheduling.
  • Hands-on experience with Endevor, Changeman, File-AID, Expeditor, Abend-AID, and IBM Debugging tools.
  • Knowledge of MQ Series, FTP, Connect:Direct, and file transfer processes.
  • Experience working with REST/SOAP API integrations between mainframe and distributed systems is a plus.
  • Strong understanding of SDLC, Agile/Scrum methodologies, and DevOps practices.
  • Experience with source control and release management processes.
  • Excellent troubleshooting, debugging, and production support experience.
  • Strong analytical, communication, and problem-solving skills.
Responsibilities:
  • Design, develop, enhance, and maintain enterprise mainframe applications.
  • Analyze business requirements and convert them into technical solutions.
  • Develop and support COBOL, CICS, DB2, JCL, and VSAM applications.
  • Create and optimize DB2 queries and database objects.
  • Perform unit testing, system testing, and support UAT activities.
  • Troubleshoot production issues and provide timely resolution.
  • Support batch jobs, online transactions, and system integrations.
  • Collaborate with business analysts, architects, QA teams, and stakeholders.
  • Participate in code reviews, performance tuning, and application modernization initiatives.
  • Prepare technical documentation and maintain development standards.
Preferred Qualifications:
  • Experience in Banking, Financial Services, Insurance, Healthcare, or Retail domains.
  • Exposure to Mainframe modernization initiatives and cloud integration.
  • Experience with IBM z/OS environment and middleware technologies.
  • Knowledge of Java or distributed applications interacting with Mainframe is a plus.
Education:
  • Bachelor''s degree in Computer Science, Information Technology, Engineering, or a related field.

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