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Senior Mainframe Software Engineer Jobs (NOW HIRING)

Keylent Inc

Sr Mainframe Developer

Atlanta, GA · On-site

Sr Mainframe Developer TECHM-JOB-30671 Location:Atlanta GA Skill: COBOL-1 Installing and configuring system software. Designing and coding new applications to run on the mainframe. Introduction and ...

Purple Drive

Senior Mainframe Developer

Westlake, TX · On-site

Role: Senior Mainframe Developer Location: Westlake, TX (Onsite) Type: Contract-to-Hire (CTH) Job ... Solid understanding of the Software Development Life Cycle (SDLC) - Analysis, Design, Development ...

My3Tech Inc

Sr. Mainframe Developer

$50.25 - $64.50/hr

Ability to install and customize IBM and third-party software using SMP/E, zOSMF, or vendor specific installation methods Our Mainframe Engineering team is looking for an experienced, senior level ...

DP Professionals

Senior Mainframe Engineer

Columbia, SC · On-site

Senior Mainframe Engineer DPP is seeking a Senior Mainframe Engineer for an opportunity with our client in the healthcare insurance industry, one of the largest employers of IT professionals in the ...

New

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 ... Develop JCL and software code using customer defined standards and software engineering best ...

My3Tech Inc

Sr. Mainframe Developer

$50.25 - $64.50/hr

Ability to install and customize IBM and third-party software using SMP/E, zOSMF, or vendor specific installation methods Our Mainframe Engineering team is looking for an experienced, senior level ...

Forhyre

Unisys Mainframe Developer

Phoenix, AZ

$48.75 - $62.50/hr

We are looking for a Senior Mainframes Developer to work on mainframe software application development. In a dynamic, fast paced environment the IBM zTPF operating system is the central hub for all ...

Forhyre

Unisys Mainframe Developer

Dallas, TX · On-site

$48.50 - $62.25/hr

We are looking for a Senior Mainframes Developer to work on mainframe software application development. In a dynamic, fast paced environment the IBM zTPF operating system is the central hub for all ...

MeganSoft

Mainframe Developer

Dearborn, MI · On-site

$45.25 - $58/hr

This position is for a Mainframe Software Engineer in this role, the Software Engineer will serve as the primary Mainframe Developer for the Recall Suite of applications, supporting both their ...

Syntricate Technologies

Mainframe Developer

Dallas, TX · On-site

$48.75 - $62.50/hr

Bachelor's degree in computer science, software engineering, or a related field * At least 5 years of experience in mainframe application development using COBOL and other programming languages

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 ... Familiarity with SDLC - Software Development Life Cycle. * Strong technical coding skills with a ...

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All JobsSenior Mainframe Software Engineer Jobs

Senior Mainframe Software Engineer information

See salary details

$75.5K

$143.3K

$192K

How much do senior mainframe software engineer jobs pay per year?

As of Jun 26, 2026, the average yearly pay for senior mainframe software engineer in the United States is $143,292.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,500.00 and $161,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Mainframe Software Engineer, and why are they important?

To thrive as a Senior Mainframe Software Engineer, you need deep expertise in COBOL, JCL, DB2, and mainframe architecture, often backed by a degree in computer science or related fields and several years of relevant experience. Familiarity with tools like IBM z/OS, CICS, RACF, and version control systems is typically required, along with certifications like IBM Certified System Programmer as a plus. Strong analytical thinking, problem-solving ability, and effective communication are crucial soft skills for leading projects and collaborating with cross-functional teams. These skills ensure reliable, secure, and efficient operation of critical legacy systems that are foundational to many large organizations.

What are Senior Mainframe Software Engineers?

Senior Mainframe Software Engineers are experienced professionals who design, develop, maintain, and optimize software applications running on mainframe computer systems. They typically work with legacy programming languages such as COBOL, PL/I, or Assembler, and are responsible for ensuring the reliability, scalability, and security of critical business applications. Their role often includes troubleshooting complex issues, integrating new technologies with existing systems, and mentoring junior engineers. These specialists are essential for organizations that rely on mainframes for large-scale data processing and transaction management.

What are some common challenges faced by Senior Mainframe Software Engineers when integrating legacy systems with modern technologies?

Senior Mainframe Software Engineers often encounter challenges when bridging legacy mainframe systems with newer technologies, such as ensuring compatibility, maintaining data integrity, and managing security risks. These integrations typically require a deep understanding of both the existing mainframe environment and the modern platforms being adopted. Collaboration with cross-functional teams, including application developers, architects, and business analysts, is essential to design effective solutions and minimize disruptions. Staying current with industry best practices and emerging tools can help address these challenges and ensure a smooth transition.

What is the difference between Senior Mainframe Software Engineer vs Mainframe Developer?

AspectSenior Mainframe Software EngineerMainframe Developer
CredentialsBachelor's in Computer Science or related, often with certifications like IBM Certified SpecialistSimilar educational background, often with certifications in mainframe technologies
Work EnvironmentLarge enterprise IT departments, financial institutions, government agenciesSame as Senior Mainframe Software Engineer, often within similar industries
ResponsibilitiesDesign, develop, and oversee mainframe applications; lead projects; troubleshoot complex issuesDevelop and maintain mainframe applications; focus on coding and debugging

While both roles involve mainframe technologies and similar credentials, Senior Mainframe Software Engineers typically have more leadership responsibilities and oversee projects, whereas Mainframe Developers focus primarily on coding and application maintenance.

More about Senior Mainframe Software Engineer jobs
What cities are hiring for Senior Mainframe Software Engineer jobs? Cities with the most Senior Mainframe Software Engineer job openings:
What are the most commonly searched types of Mainframe Software Engineer jobs? The most popular types of Mainframe Software Engineer jobs are:
What states have the most Senior Mainframe Software Engineer jobs? States with the most job openings for Senior Mainframe Software Engineer jobs include:
What job categories do people searching Senior Mainframe Software Engineer jobs look for? The top searched job categories for Senior Mainframe Software Engineer jobs are:
Senior Mainframe Software Engineer jobs near you
Infographic showing various Senior Mainframe Software Engineer job openings in the United States as of June 2026, with employment types broken down into 57% Full Time, and 43% Contract. Highlights an 100% In-person job distribution, with an average salary of $143,292 per year, or $68.9 per hour.
Sr Mainframe Developer

Sr Mainframe Developer

Keylent Inc

Atlanta, GA • On-site

Other

Posted 5 hours ago

Job description

Sr Mainframe Developer TECHM-JOB-30671
Location:Atlanta GA
Skill: COBOL-1
Installing and configuring system software. Designing and coding new applications to run on the mainframe. Introduction and management of new workloads on the system, such as batch jobs and online transaction processing.
Keylent logo

About Keylent

Sourced by ZipRecruiter

Keylent Inc, based in Wilmington, DE, US, operates in the dynamic IT services and solutions industry. Their official platform, keylent.com, further details their robust suite of services which primarily comprise software consulting, quality assurance, project management, and business intelligence. Keylent Inc has been an integral part of the industry since its inception, serving diverse clients with their specialized, innovative IT solutions. This customer-centric firm is founded on the core values of reliability, integrity, and zealous innovation. Their mission is to empower businesses in navigating the complex technological landscape with ease, efficiency, and confidence. Notably, Keylent Inc has been recognized for its commitment to exceptional service delivery and the profound impact of its solutions in facilitating business growth.

Industry

Internet and it

Company size

11 - 50 Employees

Headquarters location

Wilmington, DE, US

Year founded

2010

Social media

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